Random System Hangs - 100 % SSD Usage

I'm having some significant issues with a new PC build. I have a 240 gb Ultra II. I have 8.1 installed on it, as well as a few other programs (I'm at 182 GB free). Now, at random times when I'm using my system, everything will suddenly hang. All programs become unresponsive, the mouse sometimes locks up, ctrl+alt+delete won't do anything, etc. This lasts for about 30 seconds, then everything usually returns to normal. I leave task manager open at all times now, and it shows that during these hangs, my SSD "active time" jumps to and stays at 100%. These hangs don't seem to be linked to specific software. They occur randomly, even when my computer is under no significant load. I've already tried a clean install of 8.1. I've tried disabling superfetch/prefetch and other background system processes. I'm very confident that I am free of any viruses/malware. I'm suspecting some sort of hardware issue, but the SanDisk Dashboard shows that my disk health is fine. My firmware is also up to date. Has anyone had similar issues? Any advice or thoughts?

Hi Deponia, Thanks for the suggestions. I've already tried a complete format and reinstallation of windows, and the issue still recurred. I've also tried a repair installation from the windows disc, and that also did not eliminate the issue. After a couple google searches, I'm not seeing much about compatibility issues with the motherboard. I have an AsRock H97 Pro4. I'll try to contact sandisk support. I'm getting advice on other forums as well, I'm going to try increasing my virtual memory.

Similar Messages

Random system hang-ups with Kernel 3.2.1-1 and catalyst 11.12

Hello,
i have a very strange problem for the last month or so (i'm afraid i cannot say, when it exactly happened the first time or if it was after a upgrade): My system just randomly crashes. I haven't yet found out when it exactly crashes and how to reproduce it. But it happens almost every 2-3 days.
When the system hangs up, the last second of sound repeat over and over again. I can't move my mouse anymore as well as typing has no effect. I cannot change to another terminal. I cannot ssh into the laptop nor can i ping it.
In /var/log/messages.log, there is nothing usefull.. It just ends with the old kernel messages and then the new ones, when the system restarts. No error or so.
System runs on a Thinkpad X121e with AMD E-350 CPU. I have installed catalyst 11.12 with xorg-server 1.11.3. I will now compile catalyst 12.1 and see if it happens again.
Does anyone have a clue why the system crashes? Has it anything to do with catalyst?
Best regards,
pyro

isofluran wrote:Again, as I metioned before, the problem is likely not a hardware one but it is actually related to the kernel update (2.6.19) or to an update which was performed at the same time.
Can anyone give a proposal for a step by step procedure to isolate the problem?
As I don't believe these crashes are related to anything but the kernel, one way of debugging your issues could be:
* boot Knoppix
* zcat /proc/config.gz | some non-volatile media
* boot arch
* get the current ABS
* replace config in kernels/kernel26 with the one from Knoppix
* makepkg
* install and test
When that kernel runs, try to diff the two configs and see what's changed in arch. Also comparing both kernel versions if no significant changes exist might hint on the kernel being the problem.

System freeze, 100% CPU usage

Occasionally the CPU usage while running Windows goes up to 100% and the fan starts spinning like crazy. The system is then hardly responsive and becomes unusable.
I then have to boot into OSX before booting back into Windows to recover.
With Boot Camp 1.4 I had this problem maybe once a week, but since installing the Boot Camp 2.0 windows drivers this happens several times a day.
Is there maybe a work around for this problem? Is Apple working on a solution?
Cheers,
Erik

The part of system that is using all the CPU time is the battery driver, all the drivers come under system, it obviously has a major bug in it, I have deduced this over a period of about a year of this problem, I only get it once every couple of months now, it seems as though the Leopard drivers are worse than before, I will resist the temptation to upgrade to Leopard, it seems like many people are having trouble with leopard, particularly concerning battery life, A coleague of mine has installed leopard on a DAW machine and had a lot of problems on first install. after install he wasn't impressed by the new OS, tiger and boot camp 1.4 is working well for me, I think I will leave it there until someone has something positive to say about Leopard.
maybe you can roll back the drivers to bootcamp 1.4, only thing I miss is the trackpad tap, which apparently still doesn't work in leopard drivers, well done apple, seems like £80 of wasted money if you upgraded.

Ntoskrnl.exe System %100 disk usage with windows 8.1. all the time!.

hello i am also having the %100 disk usage problem and am starting a thread to upload my etl. file and see if i can get a solution. thnx. i should also mention i have tried every suggestion i have read on the internet even ones that worked for other people
did not work for me i.e. (switching to high performance power plan, disabling cd drive, etc.) no matter what i try "system" is always utilizing 90%-100% of my hard drive and it is driving me crazy.
i can barely do anything on computer without it taking 10x times longer than it should. ive also run dskchk and boot time virus scans and malware scans. all to no avail. i have more than enough ram and a quad core cpu. when i first purchased my laptop it
was running windows 8 and was lightning fast once i upgraded to 8.1 i think is when the issue started occurring.
i am currently installing the windows assessment and deployment kit right now and will upload my etl. file to the skydrive asap.

Jonny
In order to diagnose this problem please follow these instructions
Install the WPT (windows Performance Toolkit) http://social.technet.microsoft.com/wiki/contents/articles/4847.install-the-windows-performance-toolkit-wpt.aspx ,
open a CMD prompt with administrative rights (right click it>run as admin) and run this command for 60 secs to capture the high HD usage:
xperf -on PROC_THREAD+LOADER+CSWITCH+FILENAME+FILE_IO+FILE_IO_INIT+DISK_IO+DISK_IO_INIT+DRIVERS+PROFILE -f kernel.etl -stackwalk Profile+CSwitch+DiskReadInit+DiskWriteInit+DiskFlushInit+FileCreate+FileCleanup+FileClose+FileRead+FileWrite -BufferSize 1024 -MaxBuffers 1024 -MaxFile 1024 -FileMode Circular && timeout -1 && xperf -d XperfSlowIOcir.etl*When complete, zip the trace & upload it to skydrive (or some other file sharing service) and put a link to it in your next post.
Wanikiya and Dyami--Team Zigzag

System hangs randomly with hard disk problem

I got some problems with random system failures. After a couple of hours my system isn't usable anymore. Most programs freeze and if I try to start new programs, I get a I/O error message. System console writes many errors like this:
[ 3728.036223] systemd-journald[127]: Failed to write entry (18 items, 517 bytes), ignoring: Read-only file system
Then I have to reset my hardware. This problem occurs since two days. I made an update lately, but I can't remember if that problem occurred after that update.
What can cause such a problem? Where do I find relevant log files?

I just checked my SSD with smartctl. It displayed a warning with a link to: http://www.tomshardware.com/news/Crucia … 14544.html. That sounds like my problem. I try to update my firmware.

Windows 8.1 100% Disk Usage Problem

I am running a Toshiba Satellite C855D-S5110. 12 GB Ram, 456 GB HD with 311 GB free, CPU Max speed 2.7 GH. My computer, as many other
W8 and W8.1 users seem to suffer, is nearly constantly at 100% disk usage (apparently
I have seen many claims as to what causes this; some even say it involves a bad HD. However, I do not think my HD is bad because
1. My HD was fine before I got 8.1, to the best of my knowledge ( was on 8 prior to 8.1)
2. Most importantly, when my computer isn't in the 100% phases, it seems to work absolutely fine!
I would like help in figuring out what to do about this problem, as well as why it occurs and why it works the way it does (i.e. seemingly just going away for long periods of time).
It is extremely difficult to work when my computer is being very slow, and not knowing when it will happen or what makes it stop happening is frustrating.
I will provide below a list of measures I have taken, edited to include new things tried.
1. Adding RAM
2. Increasing pagefile
3. Running programs to clean up clutter, fix registry problems, free up memory, etc (specifically, Iolo System Mechanic)
4. Disabling the Windows Search Indexing service
5. Checking for updates
6. Running Microsoft Security Scanner (it found nothing)
7. Disabling Live Tiles (of which I only had one in the first place!)
8. One person claimed that their problem went away when they ran Skype, of all things. I tried this, though it did not do the trick.
9. Booting in Safe Mode.
10. Clean Boot.
11. My drive is 0% fragmented.
12. Trying to repair the Windows Image does nothing, as it comes up as being healthy when scanned.
13. sfc /scannow did not fix the problem either.
14. Running Microsoft's performance scanner and uploading the .etl file got me a reply blaming Chrome, which is impossible because
the problem occurs with no programs running. I will try another recording and put it up; the link will be edited in.
https://skydrive.live.com/redir?resid=DD4BA6A3F312AE94!945&authkey=!APrxfxQeNw14igc&ithint=file%2c.etl

Having the exact same problem on a computer after the Windows update installed from 8.0 to 8.1.
Even after reloading the computer from scratch.
The drive activity goes WAY up when booting - to 100%. It then seems to calm down but randomly will go up and down throughout the day peaking at 100%. Even when nothing is open except a MSWord page into which I am typing.
If other programs are open such as Excel and/or Internet Explorer they will display the file name at the top as usual with (Not Responding) at the end. The screen will fade to an opaque look. This lasts for up to approx. 15 minutes at times and the computer
responds to no keyboard or mouse clicks. The mouse pointer on the screen still moves but nothing happens when I click on anything.
I managed to keep the Task Manager visible and it clearly shows less than 20% memory use and less than 5% CPU use when this occurs. But the HDD is at 100%.
The fact that it was fine prior to updating to 8.1 indicates an issue with 8.1 to me. Absolutely nothing else has changed on this machine - aside from Windows Update.
This is a know fault and I hate W8.1. Once it finishes whatever it is doing then there are a bunch of screen flashes as it catches up to what ever and where ever I had clicked with the mouse while it was frozen. It is like it is catching up because W8.1
is causing the HDD to ???????????
Another issue I encounter is the stupid Automatic Maintenance that cannot be disabled. I have found nothing to accomplish this that actually works no matter what anyone has posted on MS sites. It last rendered my computer today useless for approx. +1
hour today!!! I had been using the computer and it was never idle for more than 1 or 2 minutes but yet it started. It is set to run at 1:00 am but it was only approx. 5:00 pm.!!
The Automatic Maintenance is not running however, when the computer freezes and uses 100% HDD as indicated by Task Manager.
Also I can disconnect the computer from the modem or power off the modem and the HDD remains at 100%! So it is not sending nor receiving anything at that time.

Client process (uniengd) on the Calendar server is consuming 100% CPU usage

The Calendar client bits in the Communicator 4.5 release (Calendar Build 981008)
are suspect of hanging the Calendar server when the end user uses the off-line
feature. The behavior seen will be that a cpu will start climbing and could
reach 80-100% of usage, which will cause the response time for all other end
users to be extremely slow and may not even accept any new logins.

The patch for these bits is available via the Smart Update (Windows and Mac) web
site:

http://home.netscape.com/smartupdate/su1_40.html
 Or you can download the complete version from
http://home.netscape.com/download/selectplatform_1_361.html

For Unix platforms, you will need to download the compressed tar file
(available from http://help/filelib.html#nscal)
and reinstall it.
NOTE: To verify that you are executing a patched version, in the
Calendar client:
Windows platform
 Help menu pulldown, About Netscape Calendar, make sure it has Build
981104 or higher.
 Mac platform
 Select the file from your desktop
 File menu pulldown, Get Info. Make sure has a date of 121698, version
4.51 or later.
 Unix platform
 Help menu pulldown, About Netscape Calendar, make sure it has is Version
4.51 or higher

The procedure for determining which user of Calendar is causing the server's cpu
hang is as follows:
<OL>
<LI>Using your favorite monitoring tool on the server, note the PID
 (process ID) of the uniengd process that is consuming
80 - 100% cpu activity.
<LI>Change directory to /users/unision/db/tmp/PID#
<LI>Execute the command "strings" on all the files in the directory
 (there are usually not very many):

 # strings *

 Near the end of the output, you will see the user's name.
<LI>You can now kill the uniengd process on the server:

 # kill PID# (note: do not use the kill -9 unless absolutely
 necessary!)

<LI>Contact the name of the user whose process you looked up and determine
 what version of Calendar client they are using. Immediately inform
 them of your procedure on upgrading to the correct version.
</OL>

Hi TrondWH,
Thanks for contacting Microsoft.
Currently, would you please try cleaning boot the server and test how the issue goes. Cleaning boot can exclude some third-party application affect. Following are the detailed steps about clean boot:
Log on to the computer by using an account that has administrator rights.
Click Start, type msconfig.exe in the Start Search box, and then press ENTER to start the
 System Configuration Utility.
On the General tab, click Selective Startup, and then click to clear the Load startup items check box. (The Use Original Boot.ini check box is unavailable.)
On the Services tab, click to select the Hide all Microsoft services check box, and then click Disable all.
Click OK, Choose Don’t show this message again and then click Restart.
Please check if the issue is still the same.
Please let me know the result.
Best regards,
Sophia Sun
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Odd System Hangs [SOLVED]

I have a cleanly installed Arch (x86) system on a Dell Vostro 1500
Intel 2.5 GHz Core 2
Braodcom Wireless (ndiswrapper)
4GB Ram
250 GB Western Digital HDD (sata)
nvidia 8400 GS 256 MB
1650x1080 Resolution
Built in UVC web cam
I seem to be having these completely random and odd system hangs.
It prevents me from using my computer for more than a few minutes at a time.
When it hangs, its usually what ever process im in gets stuck, i cant kill it completely all the time. Sometimes i can using top as root and sometimes i can using kill -kill but sometimes i cant at all and that is usually when the PPID is 1.
When I try to shutdown or reboot either from in gnome or one of the virtual consoles, it always says something about either the root or home partition unable to be unmounted, that they are still busy.
my partition layout is such:
sda1 NTFS Vista (I have to have it because of stupid itunes/iphone)
sda2 ext2 boot
sda3 xfs root
extended:
sda5 xfs home
sda6 swap swap
my ntfs partition is about 50GB and when i boot into vista i dont get the same hangs, so i don't think its a hard drive issue (but could be an partition issue)
boot partition is something like 300MB
root is something like 12 GB
Home is something like 70 gb
and swap is about 2gb
It does not matter whether or not im in gnome since if at log in screen, ill hit ctrl+alt+f1 and switch to a consol and do something as simple as like update the computer and ill cause it to hang sometimes (but not every time its too unpredictable)
When in gnome however, most applications refuse to launch and sometimes even close. The gnome-panel and some (like the system monitor) lock up but things like cpu freq scaling continues to work as does log out and the menu.
i have also had issues with the latest (-3) nvidia driver and can only get 1680x1050 resolution using the open source nv drivers (haven't had a chance to build from aur the beta drivers yet since there is an issue with the nvidia-utils-beta package) but i don't think this is causing it.
i used the western digital tool to do a hard drive scan, and it didn't find anything in the quick scan but it is still running the full scan.
I suspect it might be due to some package upgrade, i was running arch before the reformat and it was causing me to have the same issues.
i have kicked my personal Ubuntun (and derivatives) additional because of Arch's rolling release cycle so that's why i would rather put up with it for another week to figure this out!
Let me know if there is any log files i should post or anything that way i can get this fixed! And thanks in advanced (even to those of you who will probably only comment to make fun of vista, it still will keep my thread alive! )
Last edited by scubanator87 (2008-08-28 16:19:41)

Here is the dmseg output:
Linux version 2.6.26-ARCH (root@T-POWA-LX) (gcc version 4.3.1 20080724 (prerelease) (GCC) ) #1 SMP PREEMPT Sun Aug 10 12:29:20 UTC 2008
BIOS-provided physical RAM map:
BIOS-e820: 0000000000000000 - 000000000009f000 (usable)
BIOS-e820: 000000000009f000 - 00000000000a0000 (reserved)
BIOS-e820: 0000000000100000 - 00000000efe6d800 (usable)
BIOS-e820: 00000000efe6d800 - 00000000f4000000 (reserved)
BIOS-e820: 00000000fec00000 - 00000000fec10000 (reserved)
BIOS-e820: 00000000fed18000 - 00000000fed1c000 (reserved)
BIOS-e820: 00000000fed20000 - 00000000fed90000 (reserved)
BIOS-e820: 00000000feda0000 - 00000000feda6000 (reserved)
BIOS-e820: 00000000fee00000 - 00000000fee10000 (reserved)
BIOS-e820: 00000000fff00000 - 0000000100000000 (reserved)
BIOS-e820: 0000000100002000 - 0000000110000000 (usable)
x86 PAT enabled: cpu 0, old 0x7040600070406, new 0x7010600070106
Warning only 4GB will be used.
Use a HIGHMEM64G enabled kernel.
3200MB HIGHMEM available.
896MB LOWMEM available.
Entering add_active_range(0, 0, 1048576) 0 entries of 256 used
Zone PFN ranges:
DMA 0 -> 4096
Normal 4096 -> 229376
HighMem 229376 -> 1048576
Movable zone start PFN for each node
early_node_map[1] active PFN ranges
0: 0 -> 1048576
On node 0 totalpages: 1048576
DMA zone: 32 pages used for memmap
DMA zone: 0 pages reserved
DMA zone: 4064 pages, LIFO batch:0
Normal zone: 1760 pages used for memmap
Normal zone: 223520 pages, LIFO batch:31
HighMem zone: 6400 pages used for memmap
HighMem zone: 812800 pages, LIFO batch:31
Movable zone: 0 pages used for memmap
DMI 2.4 present.
ACPI: RSDP 000FBBF0, 0024 (r2 DELL )
ACPI: XSDT EFE6F200, 005C (r1 DELL M08 27D80203 ASL 61)
ACPI: FACP EFE6F09C, 00F4 (r4 DELL M08 27D80203 ASL 61)
ACPI: DSDT EFE6F800, 5658 (r2 INT430 SYSFexxx 1001 INTL 20050624)
ACPI: FACS EFE7E000, 0040
ACPI: HPET EFE6F300, 0038 (r1 DELL M08 1 ASL 61)
ACPI: APIC EFE6F400, 0068 (r1 DELL M08 27D80203 ASL 47)
ACPI: MCFG EFE6F3C0, 003E (r16 DELL M08 27D80203 ASL 61)
ACPI: SLIC EFE6F49C, 0176 (r1 DELL M08 27D80203 ASL 61)
ACPI: BOOT EFE6EFC0, 0028 (r1 DELL M08 27D80203 ASL 61)
ACPI: SSDT EFE6D97A, 04CC (r1 PmRef CpuPm 3000 INTL 20050624)
ACPI: PM-Timer IO Port: 0x1008
ACPI: Local APIC address 0xfee00000
ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
ACPI: LAPIC (acpi_id[0x01] lapic_id[0x01] enabled)
ACPI: LAPIC_NMI (acpi_id[0x00] high edge lint[0x1])
ACPI: LAPIC_NMI (acpi_id[0x01] high edge lint[0x1])
ACPI: IOAPIC (id[0x02] address[0xfec00000] gsi_base[0])
IOAPIC[0]: apic_id 2, version 32, address 0xfec00000, GSI 0-23
ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
ACPI: IRQ0 used by override.
ACPI: IRQ2 used by override.
ACPI: IRQ9 used by override.
Enabling APIC mode: Flat. Using 1 I/O APICs
ACPI: HPET id: 0x8086a201 base: 0xfed00000
Using ACPI (MADT) for SMP configuration information
Allocating PCI resources starting at f5000000 (gap: f4000000:0ac00000)
PM: Registered nosave memory: 000000000009f000 - 00000000000a0000
PM: Registered nosave memory: 00000000000a0000 - 0000000000100000
SMP: Allowing 2 CPUs, 0 hotplug CPUs
PERCPU: Allocating 39464 bytes of per cpu data
NR_CPUS: 16, nr_cpu_ids: 2
Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1040384
Kernel command line: root=/dev/disk/by-uuid/1556dc58-8b8c-44dd-87d9-7640a2dff1d6 ro vga=795
mapped APIC to ffffb000 (fee00000)
mapped IOAPIC to ffffa000 (fec00000)
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Initializing CPU#0
PID hash table entries: 4096 (order: 12, 16384 bytes)
Extended CMOS year: 2000
Detected 2493.858 MHz processor.
Console: colour dummy device 80x25
console [tty0] enabled
Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
Memory: 3890736k/4194304k available (2105k kernel code, 38512k reserved, 738k data, 264k init, 3013044k highmem)
virtual kernel memory layout:
fixmap : 0xffee4000 - 0xfffff000 (1132 kB)
pkmap : 0xff800000 - 0xffc00000 (4096 kB)
vmalloc : 0xf8800000 - 0xff7fe000 ( 111 MB)
lowmem : 0xc0000000 - 0xf8000000 ( 896 MB)
.init : 0xc03cd000 - 0xc040f000 ( 264 kB)
.data : 0xc030e78e - 0xc03c7380 ( 738 kB)
.text : 0xc0100000 - 0xc030e78e (2105 kB)
Checking if this processor honours the WP bit even in supervisor mode...Ok.
CPA: page pool initialized 1 of 1 pages preallocated
SLUB: Genslabs=12, HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
hpet clockevent registered
Calibrating delay using timer specific routine.. 4994.04 BogoMIPS (lpj=8320071)
Security Framework initialized
Capability LSM initialized
Mount-cache hash table entries: 512
CPU: L1 I cache: 32K, L1 D cache: 32K
CPU: L2 cache: 6144K
CPU: Physical Processor ID: 0
CPU: Processor Core ID: 0
Intel machine check architecture supported.
Intel machine check reporting enabled on CPU#0.
using mwait in idle threads.
Checking 'hlt' instruction... OK.
ACPI: Core revision 20080321
ACPI: Checking initramfs for custom DSDT
ENABLING IO-APIC IRQs
..TIMER: vector=0x31 apic1=0 pin1=2 apic2=-1 pin2=-1
CPU0: Intel(R) Core(TM)2 Duo CPU T9300 @ 2.50GHz stepping 06
Booting processor 1/1 ip 6000
Initializing CPU#1
Calibrating delay using timer specific routine.. 4989.28 BogoMIPS (lpj=8312455)
CPU: L1 I cache: 32K, L1 D cache: 32K
CPU: L2 cache: 6144K
CPU: Physical Processor ID: 0
CPU: Processor Core ID: 1
Intel machine check architecture supported.
Intel machine check reporting enabled on CPU#1.
x86 PAT enabled: cpu 1, old 0x7040600070406, new 0x7010600070106
CPU1: Intel(R) Core(TM)2 Duo CPU T9300 @ 2.50GHz stepping 06
checking TSC synchronization [CPU#0 -> CPU#1]: passed.
Brought up 2 CPUs
Total of 2 processors activated (9983.32 BogoMIPS).
net_namespace: 652 bytes
Booting paravirtualized kernel on bare hardware
NET: Registered protocol family 16
ACPI: bus type pci registered
PCI: MCFG configuration 0: base f0000000 segment 0 buses 0 - 63
PCI: MCFG area at f0000000 reserved in E820
PCI: Using MMCONFIG for extended config space
PCI: Using configuration type 1 for base access
Setting up standard PCI resources
ACPI: EC: Look up EC in DSDT
ACPI: Interpreter enabled
ACPI: (supports S0 S3 S4 S5)
ACPI: Using IOAPIC for interrupt routing
ACPI: PCI Root Bridge [PCI0] (0000:00)
pci 0000:00:1f.0: quirk: region 1000-107f claimed by ICH6 ACPI/GPIO/TCO
pci 0000:00:1f.0: quirk: region 1080-10bf claimed by ICH6 GPIO
PCI: Transparent bridge - 0000:00:1e.0
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0._PRT]
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.PCIE._PRT]
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.AGP_._PRT]
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.RP01._PRT]
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.RP02._PRT]
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.RP04._PRT]
ACPI: PCI Interrupt Link [LNKA] (IRQs 9 10 11) *7
ACPI: PCI Interrupt Link [LNKB] (IRQs 5 7) *10
ACPI: PCI Interrupt Link [LNKC] (IRQs 9 10 11) *4
ACPI: PCI Interrupt Link [LNKD] (IRQs *5 7 9 10 11)
ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 5 6 7 9 10 *11 12 14 15)
ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 5 6 7 9 *10 11 12 14 15)
ACPI: PCI Interrupt Link [LNKG] (IRQs 3 4 5 6 7 *9 10 11 12 14 15)
ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 5 6 7 9 10 11 12 14 15) *0, disabled.
Linux Plug and Play Support v0.97 (c) Adam Belay
pnp: PnP ACPI init
ACPI: bus type pnp registered
pnp: PnP ACPI: found 12 devices
ACPI: ACPI bus type pnp unregistered
PCI: Using ACPI for IRQ routing
NetLabel: Initializing
NetLabel: domain hash size = 128
NetLabel: protocols = UNLABELED CIPSOv4
NetLabel: unlabeled traffic allowed by default
ACPI: RTC can wake from S4
system 00:05: ioport range 0xc80-0xcff could not be reserved
system 00:08: iomem range 0xfed00000-0xfed003ff has been reserved
system 00:09: ioport range 0x900-0x97f has been reserved
system 00:09: ioport range 0x4d0-0x4d1 has been reserved
system 00:09: ioport range 0x1000-0x1005 has been reserved
system 00:09: ioport range 0x1008-0x100f has been reserved
system 00:0a: ioport range 0xf400-0xf4fe has been reserved
system 00:0a: ioport range 0x1006-0x1007 has been reserved
system 00:0a: ioport range 0x100a-0x1059 could not be reserved
system 00:0a: ioport range 0x1060-0x107f has been reserved
system 00:0a: ioport range 0x1080-0x10bf has been reserved
system 00:0a: ioport range 0x10c0-0x10df has been reserved
system 00:0a: ioport range 0x1010-0x102f has been reserved
system 00:0a: ioport range 0x809-0x809 has been reserved
system 00:0b: iomem range 0x0-0x9efff could not be reserved
system 00:0b: iomem range 0x9f000-0x9ffff could not be reserved
system 00:0b: iomem range 0xc0000-0xcffff could not be reserved
system 00:0b: iomem range 0xe0000-0xfffff could not be reserved
system 00:0b: iomem range 0x100000-0xefe6d7ff could not be reserved
system 00:0b: iomem range 0xefe6d800-0xefefffff could not be reserved
system 00:0b: iomem range 0xeff00000-0xefffffff could not be reserved
system 00:0b: iomem range 0xeff00000-0xf06fffff could not be reserved
system 00:0b: iomem range 0xfff00000-0xffffffff could not be reserved
system 00:0b: iomem range 0xffa00000-0xffafffff has been reserved
system 00:0b: iomem range 0xfec00000-0xfec0ffff could not be reserved
system 00:0b: iomem range 0xfee00000-0xfee0ffff could not be reserved
system 00:0b: iomem range 0xfed20000-0xfed8ffff could not be reserved
system 00:0b: iomem range 0xfeda0000-0xfeda3fff could not be reserved
system 00:0b: iomem range 0xfeda4000-0xfeda4fff could not be reserved
system 00:0b: iomem range 0xfeda5000-0xfeda5fff could not be reserved
system 00:0b: iomem range 0xfeda6000-0xfeda6fff has been reserved
system 00:0b: iomem range 0xfed18000-0xfed1bfff could not be reserved
system 00:0b: iomem range 0xf0000000-0xf3ffffff could not be reserved
PCI: Bridge: 0000:00:01.0
IO window: d000-dfff
MEM window: 0xfa000000-0xfeafffff
PREFETCH window: 0x00000000f4000000-0x00000000f7ffffff
PCI: Bridge: 0000:00:1c.0
IO window: disabled.
MEM window: disabled.
PREFETCH window: disabled.
PCI: Bridge: 0000:00:1c.1
IO window: disabled.
MEM window: 0xf9f00000-0xf9ffffff
PREFETCH window: disabled.
PCI: Bridge: 0000:00:1c.3
IO window: c000-cfff
MEM window: 0xf9c00000-0xf9efffff
PREFETCH window: 0x00000000f8000000-0x00000000f81fffff
PCI: Bridge: 0000:00:1e.0
IO window: disabled.
MEM window: 0xf9b00000-0xf9bfffff
PREFETCH window: disabled.
ACPI: PCI Interrupt 0000:00:01.0[A] -> GSI 16 (level, low) -> IRQ 16
PCI: Setting latency timer of device 0000:00:01.0 to 64
ACPI: PCI Interrupt 0000:00:1c.0[A] -> GSI 16 (level, low) -> IRQ 16
PCI: Setting latency timer of device 0000:00:1c.0 to 64
ACPI: PCI Interrupt 0000:00:1c.1[b] -> GSI 17 (level, low) -> IRQ 17
PCI: Setting latency timer of device 0000:00:1c.1 to 64
ACPI: PCI Interrupt 0000:00:1c.3[D] -> GSI 19 (level, low) -> IRQ 19
PCI: Setting latency timer of device 0000:00:1c.3 to 64
PCI: Setting latency timer of device 0000:00:1e.0 to 64
NET: Registered protocol family 2
IP route cache hash table entries: 32768 (order: 5, 131072 bytes)
TCP established hash table entries: 131072 (order: 8, 1048576 bytes)
TCP bind hash table entries: 65536 (order: 7, 524288 bytes)
TCP: Hash tables configured (established 131072 bind 65536)
TCP reno registered
NET: Registered protocol family 1
Unpacking initramfs... done
Freeing initrd memory: 781k freed
Simple Boot Flag at 0x79 set to 0x1
apm: BIOS not found.
highmem bounce pool size: 64 pages
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
msgmni has been set to 1717
Block layer SCSI generic (bsg) driver version 0.4 loaded (major 254)
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered (default)
pci 0000:01:00.0: Boot video device
PCI: Setting latency timer of device 0000:00:01.0 to 64
assign_interrupt_mode Found MSI capability
Allocate Port Service[0000:00:01.0:pcie00]
Allocate Port Service[0000:00:01.0:pcie02]
Allocate Port Service[0000:00:01.0:pcie03]
PCI: Setting latency timer of device 0000:00:1c.0 to 64
assign_interrupt_mode Found MSI capability
Allocate Port Service[0000:00:1c.0:pcie00]
Allocate Port Service[0000:00:1c.0:pcie02]
Allocate Port Service[0000:00:1c.0:pcie03]
PCI: Setting latency timer of device 0000:00:1c.1 to 64
assign_interrupt_mode Found MSI capability
Allocate Port Service[0000:00:1c.1:pcie00]
Allocate Port Service[0000:00:1c.1:pcie02]
Allocate Port Service[0000:00:1c.1:pcie03]
PCI: Setting latency timer of device 0000:00:1c.3 to 64
assign_interrupt_mode Found MSI capability
Allocate Port Service[0000:00:1c.3:pcie00]
Allocate Port Service[0000:00:1c.3:pcie02]
Allocate Port Service[0000:00:1c.3:pcie03]
vesafb: framebuffer at 0xfb000000, mapped to 0xf8880000, using 10240k, total 14336k
vesafb: mode is 1280x1024x32, linelength=5120, pages=1
vesafb: protected mode interface info at c000:b650
vesafb: pmi: set display start = c00cb6b3, set palette = c00cb70e
vesafb: pmi: ports = 3b4 3b5 3ba 3c0 3c1 3c4 3c5 3c6 3c7 3c8 3c9 3cc 3ce 3cf 3d0 3d1 3d2 3d3 3d4 3d5 3da
vesafb: scrolling: redraw
vesafb: Truecolor: size=8:8:8:8, shift=24:16:8:0
Switched to high resolution mode on CPU 1
Switched to high resolution mode on CPU 0
Console: switching to colour frame buffer device 160x64
fb0: VESA VGA frame buffer device
isapnp: Scanning for PnP cards...
isapnp: No Plug & Play device found
Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing disabled
input: Macintosh mouse button emulation as /class/input/input0
PNP: PS/2 Controller [PNP0303:KBC,PNP0f13:PS2M] at 0x60,0x64 irq 1,12
serio: i8042 KBD port at 0x60,0x64 irq 1
serio: i8042 AUX port at 0x60,0x64 irq 12
mice: PS/2 mouse device common for all mice
cpuidle: using governor ladder
cpuidle: using governor menu
TCP cubic registered
NET: Registered protocol family 17
Using IPI No-Shortcut mode
registered taskstats version 1
Freeing unused kernel memory: 264k freed
input: AT Translated Set 2 keyboard as /class/input/input1
No dock devices found.
SCSI subsystem initialized
libata version 3.00 loaded.
ACPI: PCI Interrupt 0000:00:1f.1[A] -> GSI 16 (level, low) -> IRQ 16
PCI: Setting latency timer of device 0000:00:1f.1 to 64
ACPI: PCI interrupt for device 0000:00:1f.1 disabled
ACPI: PCI Interrupt 0000:00:1f.2[b] -> GSI 17 (level, low) -> IRQ 17
PCI: Setting latency timer of device 0000:00:1f.2 to 64
ACPI: PCI interrupt for device 0000:00:1f.2 disabled
ata_piix 0000:00:1f.1: version 2.12
ACPI: PCI Interrupt 0000:00:1f.1[A] -> GSI 16 (level, low) -> IRQ 16
PCI: Setting latency timer of device 0000:00:1f.1 to 64
scsi0 : ata_piix
scsi1 : ata_piix
ata1: PATA max UDMA/100 cmd 0x1f0 ctl 0x3f6 bmdma 0x6fa0 irq 14
ata2: PATA max UDMA/100 cmd 0x170 ctl 0x376 bmdma 0x6fa8 irq 15
ata1.00: ATAPI: HL-DT-ST DVD+/-RW GSA-T21N, A102, max UDMA/33
ata1.00: configured for UDMA/33
ata2: port disabled. ignoring.
scsi 0:0:0:0: CD-ROM HL-DT-ST DVD+-RW GSA-T21N A102 PQ: 0 ANSI: 5
ACPI: PCI Interrupt 0000:00:1f.2[b] -> GSI 17 (level, low) -> IRQ 17
ata_piix 0000:00:1f.2: MAP [ P0 P2 P1 P3 ]
PCI: Setting latency timer of device 0000:00:1f.2 to 64
scsi2 : ata_piix
scsi3 : ata_piix
ata3: SATA max UDMA/133 cmd 0x6eb0 ctl 0x6eb8 bmdma 0x6ee0 irq 17
ata4: SATA max UDMA/133 cmd 0x6ec0 ctl 0x6ec8 bmdma 0x6ee8 irq 17
ata3: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
ata3.00: ATA-8: WDC WD2500BEVS-75UST0, 01.01A01, max UDMA/133
ata3.00: 488397168 sectors, multi 8: LBA48 NCQ (depth 0/32)
ata3.00: configured for UDMA/133
ata4: SATA link down (SStatus 0 SControl 0)
scsi 2:0:0:0: Direct-Access ATA WDC WD2500BEVS-7 01.0 PQ: 0 ANSI: 5
Driver 'sr' needs updating - please use bus_type methods
Driver 'sd' needs updating - please use bus_type methods
sr0: scsi3-mmc drive: 24x/24x writer cd/rw xa/form2 cdda tray
Uniform CD-ROM driver Revision: 3.20
sr 0:0:0:0: Attached scsi CD-ROM sr0
sd 2:0:0:0: [sda] 488397168 512-byte hardware sectors (250059 MB)
sd 2:0:0:0: [sda] Write Protect is off
sd 2:0:0:0: [sda] Mode Sense: 00 3a 00 00
sd 2:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
sd 2:0:0:0: [sda] 488397168 512-byte hardware sectors (250059 MB)
sd 2:0:0:0: [sda] Write Protect is off
sd 2:0:0:0: [sda] Mode Sense: 00 3a 00 00
sd 2:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
sda: sda1 sda2 sda3 sda4 < sda5 sda6 >
sd 2:0:0:0: [sda] Attached SCSI disk
SGI XFS with ACLs, security attributes, realtime, large block numbers, no debug enabled
SGI XFS Quota Management subsystem
XFS mounting filesystem sda3
Ending clean XFS mount for filesystem: sda3
rtc_cmos 00:03: rtc core: registered rtc_cmos as rtc0
rtc0: alarms up to one month, y3k
ACPI: PCI Interrupt 0000:03:00.0[A] -> GSI 17 (level, low) -> IRQ 17
ssb: Sonics Silicon Backplane found on PCI device 0000:03:00.0
b44.c:v2.0
eth0: Broadcom 44xx/47xx 10/100BaseT Ethernet 00:1d:09:d2:f2:e9
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
ndiswrapper version 1.53 loaded (smp=yes, preempt=yes)
ndiswrapper: driver bcmwl5 (Broadcom,09/20/2007, 4.170.25.12) loaded
ACPI: PCI Interrupt 0000:0c:00.0[A] -> GSI 17 (level, low) -> IRQ 17
PCI: Setting latency timer of device 0000:0c:00.0 to 64
ndiswrapper: using IRQ 17
wlan0: ethernet device 00:16:44:b5:93:db using NDIS driver: bcmwl5, version: 0x4aa190c, NDIS version: 0x501, vendor: 'NDIS Network Adapter', 14E4:4315.5.conf
wlan0: encryption modes supported: WEP; TKIP with WPA, WPA2, WPA2PSK; AES/CCMP with WPA, WPA2, WPA2PSK
usbcore: registered new interface driver ndiswrapper
ACPI: SSDT EFE6E4B0, 02C8 (r1 PmRef Cpu0Ist 3000 INTL 20050624)
ACPI: SSDT EFE6DE46, 05E5 (r1 PmRef Cpu0Cst 3001 INTL 20050624)
Monitor-Mwait will be used to enter C-1 state
Monitor-Mwait will be used to enter C-2 state
Monitor-Mwait will be used to enter C-3 state
ACPI: CPU0 (power states: C1[C1] C2[C2] C3[C3])
ACPI: ACPI0007:00 is registered as cooling_device0
ACPI: Processor [CPU0] (supports 8 throttling states)
ACPI: SSDT EFE6E778, 00C4 (r1 PmRef Cpu1Ist 3000 INTL 20050624)
ACPI: SSDT EFE6E42B, 0085 (r1 PmRef Cpu1Cst 3000 INTL 20050624)
ACPI: CPU1 (power states: C1[C1] C2[C2] C3[C3])
ACPI: ACPI0007:01 is registered as cooling_device1
ACPI: Processor [CPU1] (supports 8 throttling states)
Marking TSC unstable due to: TSC halts in idle.
ACPI: PCI Interrupt 0000:00:1b.0[A] -> GSI 21 (level, low) -> IRQ 21
PCI: Setting latency timer of device 0000:00:1b.0 to 64
ACPI: AC Adapter [AC] (on-line)
ACPI: Battery Slot [BAT0] (battery present)
input: Lid Switch as /class/input/input2
ACPI: Lid Switch [LID]
input: Power Button (CM) as /class/input/input3
ACPI: Power Button (CM) [PBTN]
input: Sleep Button (CM) as /class/input/input4
ACPI: Sleep Button (CM) [SBTN]
ACPI: LNXTHERM:01 is registered as thermal_zone0
ACPI: Thermal Zone [THM] (25 C)
dcdbas dcdbas: Dell Systems Management Base Driver (version 5.6.0-3.2)
sr 0:0:0:0: Attached scsi generic sg0 type 5
sd 2:0:0:0: Attached scsi generic sg1 type 0
USB Universal Host Controller Interface driver v3.0
ACPI: PCI Interrupt 0000:00:1a.0[A] -> GSI 20 (level, low) -> IRQ 20
PCI: Setting latency timer of device 0000:00:1a.0 to 64
uhci_hcd 0000:00:1a.0: UHCI Host Controller
uhci_hcd 0000:00:1a.0: new USB bus registered, assigned bus number 1
uhci_hcd 0000:00:1a.0: irq 20, io base 0x00006f20
usb usb1: configuration #1 chosen from 1 choice
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 2 ports detected
ACPI: WMI: Mapper loaded
Linux agpgart interface v0.103
ACPI: PCI Interrupt 0000:00:1a.1[b] -> GSI 21 (level, low) -> IRQ 21
PCI: Setting latency timer of device 0000:00:1a.1 to 64
uhci_hcd 0000:00:1a.1: UHCI Host Controller
uhci_hcd 0000:00:1a.1: new USB bus registered, assigned bus number 2
uhci_hcd 0000:00:1a.1: irq 21, io base 0x00006f00
usb usb2: configuration #1 chosen from 1 choice
hub 2-0:1.0: USB hub found
hub 2-0:1.0: 2 ports detected
ACPI: PCI Interrupt 0000:00:1a.7[C] -> GSI 22 (level, low) -> IRQ 22
PCI: Setting latency timer of device 0000:00:1a.7 to 64
ehci_hcd 0000:00:1a.7: EHCI Host Controller
ehci_hcd 0000:00:1a.7: new USB bus registered, assigned bus number 3
ehci_hcd 0000:00:1a.7: debug port 1
PCI: cache line size of 32 is not supported by device 0000:00:1a.7
ehci_hcd 0000:00:1a.7: irq 22, io mem 0xfed1c400
ACPI: device:32 is registered as cooling_device2
input: Video Bus as /class/input/input5
ehci_hcd 0000:00:1a.7: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004
usb usb3: configuration #1 chosen from 1 choice
hub 3-0:1.0: USB hub found
hub 3-0:1.0: 4 ports detected
ACPI: Video Device [VID] (multi-head: yes rom: no post: no)
ACPI: device:37 is registered as cooling_device3
input: Video Bus as /class/input/input6
ACPI: Video Device [VID1] (multi-head: yes rom: no post: no)
input: Video Bus as /class/input/input7
ACPI: PCI Interrupt 0000:00:1d.0[A] -> GSI 20 (level, low) -> IRQ 20
PCI: Setting latency timer of device 0000:00:1d.0 to 64
uhci_hcd 0000:00:1d.0: UHCI Host Controller
uhci_hcd 0000:00:1d.0: new USB bus registered, assigned bus number 4
uhci_hcd 0000:00:1d.0: irq 20, io base 0x00006f80
usb usb4: configuration #1 chosen from 1 choice
hub 4-0:1.0: USB hub found
hub 4-0:1.0: 2 ports detected
ACPI: Video Device [VID2] (multi-head: yes rom: no post: no)
ricoh-mmc: Ricoh MMC Controller disabling driver
ricoh-mmc: Copyright(c) Philip Langdale
ACPI: PCI Interrupt 0000:00:1d.1[b] -> GSI 21 (level, low) -> IRQ 21
PCI: Setting latency timer of device 0000:00:1d.1 to 64
uhci_hcd 0000:00:1d.1: UHCI Host Controller
uhci_hcd 0000:00:1d.1: new USB bus registered, assigned bus number 5
uhci_hcd 0000:00:1d.1: irq 21, io base 0x00006f60
usb usb5: configuration #1 chosen from 1 choice
hub 5-0:1.0: USB hub found
hub 5-0:1.0: 2 ports detected
input: PC Speaker as /class/input/input8
sdhci: Secure Digital Host Controller Interface driver
sdhci: Copyright(c) Pierre Ossman
ACPI: PCI Interrupt 0000:00:1d.2[C] -> GSI 22 (level, low) -> IRQ 22
PCI: Setting latency timer of device 0000:00:1d.2 to 64
uhci_hcd 0000:00:1d.2: UHCI Host Controller
uhci_hcd 0000:00:1d.2: new USB bus registered, assigned bus number 6
uhci_hcd 0000:00:1d.2: irq 22, io base 0x00006f40
usb usb6: configuration #1 chosen from 1 choice
hub 6-0:1.0: USB hub found
hub 6-0:1.0: 2 ports detected
ACPI: PCI Interrupt 0000:00:1d.7[A] -> GSI 20 (level, low) -> IRQ 20
PCI: Setting latency timer of device 0000:00:1d.7 to 64
ehci_hcd 0000:00:1d.7: EHCI Host Controller
ehci_hcd 0000:00:1d.7: new USB bus registered, assigned bus number 7
ehci_hcd 0000:00:1d.7: debug port 1
PCI: cache line size of 32 is not supported by device 0000:00:1d.7
ehci_hcd 0000:00:1d.7: irq 20, io mem 0xfed1c000
ehci_hcd 0000:00:1d.7: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004
usb usb7: configuration #1 chosen from 1 choice
hub 7-0:1.0: USB hub found
hub 7-0:1.0: 6 ports detected
ricoh-mmc: Ricoh MMC controller found at 0000:03:01.2 [1180:0843] (rev 12)
ricoh-mmc: Controller is now disabled.
ACPI: PCI Interrupt 0000:03:01.0[A] -> GSI 19 (level, low) -> IRQ 19
ACPI: PCI Interrupt 0000:00:1f.3[b] -> GSI 17 (level, low) -> IRQ 17
ohci1394: fw-host0: OHCI-1394 1.1 (PCI): IRQ=[19] MMIO=[f9bfd800-f9bfdfff] Max Packet=[2048] IR/IT contexts=[4/4]
sdhci: SDHCI controller found at 0000:03:01.1 [1180:0822] (rev 22)
ACPI: PCI Interrupt 0000:03:01.1[b] -> GSI 18 (level, low) -> IRQ 18
mmc0: SDHCI at 0xf9bfd400 irq 18 DMA
Clocksource tsc unstable (delta = -136278622 ns)
usb 7-6: new high speed USB device using ehci_hcd and address 2
Synaptics Touchpad, model: 1, fw: 6.3, id: 0x1a0b1, caps: 0xa04793/0x300000
serio: Synaptics pass-through port at isa0060/serio1/input0
usb 7-6: configuration #1 chosen from 1 choice
input: SynPS/2 Synaptics TouchPad as /class/input/input9
Linux video capture interface: v2.00
uvcvideo: Found UVC 1.00 device Laptop Integrated Webcam (05a9:2640)
uvcvideo: Failed to query (135) UVC control 1 (unit 0) : -32 (exp. 26).
input: Laptop Integrated Webcam as /class/input/input10
usbcore: registered new interface driver uvcvideo
USB Video Class driver (v0.1.0)
XFS mounting filesystem sda5
Ending clean XFS mount for filesystem: sda5
ieee1394: Host added: ID:BUS[0-00:1023] GUID[444fc0001a3d01c1]
Adding 2522164k swap on /dev/sda6. Priority:-1 extents:1 across:2522164k
b44: eth0: Link is up at 100 Mbps, full duplex.
b44: eth0: Flow control is off for TX and off for RX.
fuse init (API version 7.9)
NET: Registered protocol family 10
lo: Disabled Privacy Extensions
ADDRCONF(NETDEV_UP): wlan0: link is not ready
eth0: no IPv6 routers present

How to control timing without 100% CPU usage

I wanted fine control over timing (in windows XP), but ran into two problems.
Problem 1: If you use the Swing timer, or Thread.sleep, the resolution is limited to 10 or 11 milliseconds. There is a Thread.sleep(millis, nanos) function, but I tested it and it still has 11ms resolution in WinXP.
Problem 2: If you use jbanes's GAGE timer, CPU utilization will always be 100%.
Solution: Use a hybrid technique. I would love to have nanosecond resolution AND low CPU utilization at any speed (and if you have any suggestions, please post them) but for now:
class /*name*/ extends Thread{
public void run(){
 setDelay(delaySettings[speed]); //Set "delay" to the desired delay in nanoseconds
 long nanos;
 while(true){
 if(running){ //"running" is a boolean that can pause or unpause the game
 nanos=System.nanoTime()+delay;
 tick(); //Do the game logic and graphics for one frame
 if(delay>11000000){ //If the system timer can handle it
 try{sleep(delay/1000000);} //delay/1000000 gives millis
 catch(Exception e){System.out.println("Caught sleep exception: "+e);}
 }else{ //use a nanotimer (cpu-expensive)
 while(System.nanoTime()<nanos){}
 }else{ //it is paused, so wait a bit
 try{sleep(50);}
 catch(Exception e){System.out.println("Caught sleep exception: "+e);}
//The rest of your code
}If your desired delay is greater than the system timer resolution (here, I have it set at 11,000,000 nanoseconds, or 11ms) then you can use the Thread.sleep(milliseconds) call, which will have approximately 0% CPU utilization until the thread wakes up. Theoretically, you could use this time for another thread, but at the very minimum, your computer should use less power / generate less heat. If your desired resolution is smaller than 11,000,000 nanoseconds, it goes into a loop that checks nanoTime()... which gives you 100% CPU usage, but is very accurate. This works pretty well if you want to control the framerate dynamically (I use the "-"/"=" buttons to adjust speed) and it handles "pause" events, though I'm sure there are better ways to do that.
Note: The timing granularity above 11ms for this technique is probably 11ms, though the code could be modified to provide nanosecond granularity at any speed.
Note 2: I found this to run 3% faster than when I used the GAGE timer.
-Cherry

Pause the game when u alt-tab away ^_^
Thats what most native fullscreen games do (the
non-networked kind atleast)Good idea, but the crux of the issue is really the underlying scheduler which allows
the thread to race.
How to "Eliminate" 100% CPU usage.
Tony's Law of the exec constant. <<<<"Any thread or process running on a non-preemptive operating system MUST NOT use blocking
IO, and MUST preempt itself at leat 20MS per iteration."
The reason it is called a constant is because it is the minimum time needed to ensure
the underlying operating system gets enough CPU cycles to function correctly.
Every milliseconds below this increases exponentially the chance of locking up or
crashing despite the speed of your system.
Most people who program do not realize the the implications of running under defective schedulers
such as the one provided with MS windows where, for example, you can block on a socket, and
hang your whole system.
>>> Do NOT use Thread.sleep() <<< but instead use Object.wait();
Do not use blockng IO. If you have to use java.io, use available() to make such you ONLY
read the exact amount of bytes you need without blocking and make sure to prempt
yourself at least 20MS per iteration.
ie:
InputStream inputStream;
while(working)
Object waitObject = new Object();
int readCount = 0;
int availableBytes = 0;
int totalBytes = 10;
 while(readCount < totalBytes)
 if((availableBytes = inputStream.available())!=0)
 read() (the # of Bytes available)
 else
 synchronized(waitObject)
 waitObject.wait(200); // 5X per second poll
 waitObject.notifyAll();
Using wait() removes the current thread from being scheduled; Thread.sleep()
leaves the Thread on the schedule list. wait() releases all monitors allow other
threads to have them; THread.sleep() does not.
The 100% CPU issue is especially bad under NT BTW.
If you do this not only will your CPU usage go to negligible, but you
will never again lock your system because of it.
Good Luck!
(T)

100% CPU Usage caused by HMI

Hi everybody:
I'm working with LabVIEW DSC 8.2.1 in a system that monitors many variables of a plant, such a typical SCADA system. For this reason, the use of the graphic tools is highly used on the development of this system. Everything works fine, but I have only one problem.... the usage of the CPU.
When I am working on the development system I (not the executable) I start the application and after the variables are initialized and every process has started and are running , the CPU usage is raised around 90 - 100%. After a few days investigating the reason of this, I realized thay when I change the view on the screen to another view, for example the block diagram of the application, while the application is still running, the CPU usage goes around 15 - 25%. I've tried these many times changing the view from Front panel to Block Diagram and viceversa and the result is always the same: Front Panel= around 100%; Block diagram or another view (other applications MMIs, or Block Diagrams, etc.)= around 20%.
Another thing that I realized is that the other view (different to front panel) has to fill the entire screen to work the way I'm telling before.
When I build and run the executable, the usage of the CPU is the same... (around 100%), but I can't see any other application, because the application built is the shell of the OS, so no other views are available.
I don't know if there's some other consideration to take into account about the HMI when creating an application, and I'll appreciate very much your help.
Thanks in advance!
Ignacio von Unger

From http://100cpuusage.blogspot.com/
100 Percent CPU Usage when you run programs after you install Windows XP Service Pack 2
CPU Usage 100% Symptoms
When you run some programs, the CPU Usage meter in Task Manager may indicate CPU Usage 100%. When CPU utilization reaches 100 percent, programs will run very slowly or stop responding (hang) and your computer is freezing or crashing.
Noteress CTRL+ALT+DEL to view CPU utilization, click Task Manager, and then click the Performance tab.
These symptoms occur after you install Microsoft Windows XP Service Pack 2 (SP2).
CPU Usage 100% Cause
These problem occurs because of the user interface code that is included in Windows XP SP2. The high CPU utilization is caused by the additional overhead that occurs when the IsWindow function is called by the user interface code.
RESOLUTION
Hotfix information
A supported hotfix is now available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next service pack that contains this hotfix.
To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:
http://go.microsoft.com/?linkid=6294451
Note If additional issues occur or any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. To create a separate service request, visit the following Microsoft Web site:
http://support.microsoft.com/contactus/?ws=support (http://support.microsoft.com/contactus/?ws=support)
Prerequisites
To apply this hotfix, you must have Windows XP SP2 installed.
Restart requirement
You must restart the computer after you apply this hotfix.
Hotfix replacement information
This hotfix does not replace any other hotfixes.
File information
The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel. Date Time Version Size File name
30-Mar-2005 19:53 5.1.2600.2643 577,024 User32.dll
30-Mar-2005 01:30 5.1.2600.2643 1,836,544 Win32k.sys
if you still do not know how to Fix CPU Usage 100%?
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Because there are many cases causing high cpu utilization.
1. If you do a lot of web surfing and are concerned about spyware, adware infecting your machine, they will cause system crashes and CPU utilization reaches 100 percent. Some good registry cleaner has the function of spyware & adware removal.
2. You install many beta version of the software, Drivers are not certified, which resulted in many errors, you get high cpu usage.
3.100% CPU Usage while you use Internet Explorer
4. many unneed Startup Program.
5.Others PC Errors. - DLL errors, runtime errors, Windows-Installer Errors, Windows Startup Errors,paths Broken DLLs, OCX, and ActiveX Components all will cause 100% cpu usage. Your PC will run very slowly.
Registry cleaner can do a complete scan of your entire file system and registry in under 2 minutes! Fix High Cpu Usage. Improve PC Speed By Up to 70%!
http://www.100-cpu-usage.com/ suggest you to download registry cleaner to fix 100% cpu usage too.
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[SOLVED]Random system freezes

Hello,
My Dell Studio 1558 runs ArchLinux with XFCE. Everything is fine except two problems: Random system freezes and slow wlan download speed. I think that those problems might be related.
Since some updates ago my Laptop will just randomly freeze. Unfortunately I cannot remember exactly when it started. The freezes will randomly appear without any regularity or possibility to reproduce. Sometimes it freezes immediately after booting, sometimes after some hours. Heating should be no problem as it also freezes when the Laptop is cold (what a joke )
Sometimes it will freeze several times in a row, sometimes it won't freeze a whole day. It seems that it only freezes if there is Wireless LAN connection available. (I use wicd if that is of any importance.). It feels like the highest freeze rate is while downloading packages for system updates...
lspci tells about the wireless chip:
04:00.0 Network controller: Broadcom Corporation BCM4312 802.11b/g LP-PHY (rev 01)
uname -a
Linux mydell 2.6.38-ARCH #1 SMP PREEMPT Wed Mar 30 08:47:36 CEST 2011 x86_64 Intel(R) Core(TM) i3 CPU M 330 @ 2.13GHz GenuineIntel GNU/Linux
So, according to the wiki page I use the broadcom-wl driver from AUR. I also tried the DKMS one which, of course, changed nothing. My modules array concerning broadcom looks like
MODULES=(!b43 !ssb !lib80211 !brcm80211 lib80211_crypt_tkip wl)
I ran memtest over several hours to make sure it's no memory problem. No errors in 5 passes. It has an ATI Chip which is powered by catalyst right now... Could be the source of the problem but I guess I'd have to test that further.
Additionally I suffer slooooow download speed over wireless LAN since some periond (can't remember the exact starting point too...). It's not related to my AP, happens in other networks too. I tried several servers too. Max download speed: 148 kb/s :S
I suspect that the freezes and the slow download speed are releated. Maybe a driver issue? I have no clue. I was unlucky to find error reports in the logs after the freezes. Besides, I have no real idea what to search for in the logs. I placed a desklet on my desktop now, to see the exact time and seconds when the freeze appears. I hope I'll be lucky.
Can someone help me or give me some ideas what to do?
Edit:
There was another kernel upate and at least the low speed is gone... strange. Hope the same is for the freezes :S
Edit 2:
Downgrading pm-utils to 1.3.0 did the trick for me. No freezes anymore.
Last edited by McFlow (2011-05-07 15:26:54)

So, the freezes are still there. I also tried the open source ATI driver. My laptop will still freeze randomly. The highest freeze rate was during operations with pacman/clyde. I think this might point to either WLAN or HDD.
I placed a desklet clock on my desktop and I could finally see the exact time when my laptop froze! But I cannot find anything interesting in the logfiles.
This should be the last lines that were written before the freeze occurec in everything.log.
Apr 22 16:49:46 localhost rtkit-daemon[3587]: Successfully called chroot.
Apr 22 16:49:46 localhost rtkit-daemon[3587]: Successfully dropped privileges.
Apr 22 16:49:46 localhost rtkit-daemon[3587]: Successfully limited resources.
Apr 22 16:49:46 localhost rtkit-daemon[3587]: Running.
Apr 22 16:49:46 localhost rtkit-daemon[3587]: Canary thread running.
Apr 22 16:49:46 localhost rtkit-daemon[3587]: Watchdog thread running.
Apr 22 16:49:47 localhost rtkit-daemon[3587]: Successfully made thread 3582 of process 3582 (/usr/bin/pulseaudio) owned by '1000' high priority at nice level -11.
Apr 22 16:49:47 localhost rtkit-daemon[3587]: Supervising 1 threads of 1 processes of 1 users.
Apr 22 18:49:47 localhost kernel: [ 42.385322] eth1: no IPv6 routers present
Apr 22 18:49:53 localhost logger: ACPI group/action undefined: processor / CPU0
Apr 22 18:49:53 localhost logger: ACPI group/action undefined: processor / CPU0
Last lines from messages.log
Apr 22 18:49:34 localhost logger: ACPI action undefined: ADP1
Apr 22 18:49:34 localhost logger: ACPI group/action undefined: processor / CPU0
Apr 22 18:49:34 localhost logger: ACPI group/action undefined: processor / CPU0
Apr 22 18:49:34 localhost logger: ACPI group/action undefined: processor / CPU0
Apr 22 18:49:34 localhost logger: ACPI group/action undefined: processor / CPU0
Apr 22 18:49:34 localhost logger: ACPI group/action undefined: processor / CPU0
Apr 22 18:49:34 localhost logger: ACPI group/action undefined: processor / CPU0
Apr 22 18:49:34 localhost logger: ACPI group/action undefined: processor / CPU0
Apr 22 18:49:34 localhost kernel: [ 28.860026] r8169 0000:09:00.0: eth0: link down
Apr 22 18:49:34 localhost kernel: [ 28.860452] ADDRCONF(NETDEV_UP): eth0: link is not ready
Apr 22 18:49:37 localhost kernel: [ 31.674805] r8169 0000:09:00.0: eth0: link down
Apr 22 18:49:37 localhost kernel: [ 31.674822] r8169 0000:09:00.0: eth0: link down
Apr 22 18:49:37 localhost kernel: [ 31.675249] ADDRCONF(NETDEV_UP): eth0: link is not ready
Apr 22 18:49:39 localhost polkitd[3456]: started daemon version 0.99 using authority implementation `local' version `0.99'
Apr 22 18:49:44 localhost kernel: [ 39.143241] fuse init (API version 7.16)
Apr 22 16:49:47 localhost rtkit-daemon[3587]: Successfully made thread 3582 of process 3582 (/usr/bin/pulseaudio) owned by '1000' high priority at nice level -11.
Apr 22 18:49:53 localhost logger: ACPI group/action undefined: processor / CPU0
Apr 22 18:49:53 localhost logger: ACPI group/action undefined: processor / CPU0
My laptop sometimes hangs at boot with this screen. I cannot take some usful information from it. But it seems, that it's also related to networking stuff? But I am not sure if that's the cause for my problem.
I am lost. I have no real idea what to do. I think of using some other distribution in order to see if the freezes will occur there too. I hope this is "just" a driver issue...
Last edited by McFlow (2011-04-24 17:48:27)

Ntoskrnl.exe 100% disk usage windows 8.0 and 8.1

This is a bug report. I hope Microsoft will take it seriously as it took me a whole day and much stress to track it down. Basically my problem was the same as this: http://slopjong.de/2013/04/23/extremely-high-disk-activity-with-windows-8-and-how-to-fix-it/
However in the graphic on this site it appears to show that Virtualbox is the culprit. However this is unlikely to be the case, as the author of the site fixed his problem by following his own advice. This is an extremely common problem as this Google search
indicates:
https://www.google.co.uk/#q=ntoskrnl.exe+100+disk+usage+windows+8
To attempt to address my own problem first I disabled all non-microsoft services in Windows 8.1 professional. When this had no effect on the problem, I then disabled all non-essential Microsoft services. In turn. when this has no effect I disabled all user
installed start-up items. Again when this failed to have an impact, I changed my browser from Firefox to Google Chrome, as I noted that the extremely high disk utilisation was at it's worst when using Firefox. This also had no effect.
I then tried a variation of my search on Google "ntoskrnl.exe 100 disk usage windows 8" (I can't remember the exact variation) and stumbled over the above site at the beginning of this message. I had by that point tried everything that was in my power
to try. But I noted from this article that the author recommended changing the power plan from 'balanced', to 'high performance'. Since I had exhausted every other avenue, I decided to try this and like magic, instantly it worked. So there is clearly
a bug in Windows 8.1 (and 8 prior to this) that causes 100% disk utilisation. I thought someone at MS might like to know about it and come up with a way to fix it.
Below is my system configuration. Please note this system configuration may contain a number of errors, as it was generated with several non-essential Microsoft services disabled. I do not believe these issues need to be addressed. However the issue of 100%
disk utilisation when using a 'balanced' power plan on Windows 8.1 (and 8.0) almost certainly does.
PS
This message board system will not allow me to post my full system configuration. MS need a better bug reporting system! Apple allow the public to submit bug reports, so why not Microsoft too. The public can find useful bugs!

Hi,
Thanks for your detailed description.
We considered that the culprit for every computer is different. For the specific PC, we need to analyze the specific issue.
Please trace the performance using the Windows performance toolkit.
http://msdn.microsoft.com/en-us/library/hh162945.aspx
The download link is below:
http://www.microsoft.com/en-US/download/details.aspx?id=39982
Then upload the .etl file to Skydrive. We will help you analyze.
Karen Hu
TechNet Community Support

Windows 8.0 ntoskernel has producing 100% disk usage

hello i am also having the %100 disk usage problem and am starting a thread to upload my etl. file and
see if i can get a solution. thnx. i should also mention i have tried every suggestion i have read on the internet even ones that worked for other people did not work for me i.e. (switching to high performance power plan, disabling cd drive, etc.) no matter
what i try "system" is always utilizing 90%-100% of my hard drive.
the issue started with windows 7 Ent edition and I decided to reflash the drive Cof my Laptop HP Probook 6470B with windows 8.0 ENT 64 bits and has the
same symptom ntoskrnl.exe is causing hiccups on I/O and delays . The access to C on windows 8 compared h Windows 7 is better but continue showing the issue.
Other peers on the same company not complaint of this delay but I'm sure that they have same symptom.
the symptom is that the Ntoskernel read and write constantly few bytes for fractions of second but repeatedly, the effect is that the queue disk
is high and this issue no let to use the drive C, the system need to wait that the drive is free to let that other applications can use the drive SATA.
I try to share my .etl collected with windows performance analyzer , but "ONE drive" application no let my up more of 100MB in single
file.
If you can help provide some space to upload the file will be appreciated.
Regards
Luis Velazquez

Hi Wanikiya,
Unfortunately I can´t remove the Mcafee sw due that is is a policy of my company.
Checking the MS Performance tool you can see that the behavior that show the disk is caused not by Mcafee process. You can select only Process system (4) and right click and select filter selection you can see that the output match exactly with the
disk behavior.
when you put the mouse and click the top 100 % line of the graph you will see a message like this:
Path name- c:\$logfile
IO Init Stack -- [Root] /ntoskrnl.exe ? /ntoskernel.exe?/nto..../fvevol.sys!?/volmgr.sys!/partmagr.sys!?
the Pathname change in each point of the graph but the IO Init stack remain the same.
I'm afraid the the SATA drive is having an issue and windows try to fix.
But if you found something more let me know.
Let me tell you that I'm using bit locker encryption and all the data on my disk has been encrypted.
Any idea will be welcome.

100% disk usage in Task Manager when using Photoshop CC (Windows 8.1 - 64 bit)

Hi
I have been using Adobe CC for a month or two now. I own an Asus laptop with Intel i7 (2.4 GHz), 6 GB RAM, 1 TB hard disk space and 64 bit, nearly 6 months old. Following apps are currently installed: Photoshop, Illustrator, InDesign, Audition, Acrobat XI Pro, Premiere Pro and Media Encoder. I recently performed an update through Adobe CC for Photoshop and Illustrator, all others are up-to-date.
I believe, but I may be wrong, that since this update Photoshop is acting weird on my laptop. When I start Photoshop, my task manager immediately indicates a 100% rate of my disk usage. This seems to wield off after it is fully operational, but when I start to edit a file, the disk usage immediately jumps back to 100%, while the CPU remains below 10%, RAM stays at 3.5-3.8 GB (only 60% of total capacity) and even the actual read and write speeds of my HDD are not particularly high (5 - 10MB max). And because of the 100% disk usage, Photoshop freezes in an instant and operating it is nearly impossible.
I already uninstalled Photoshop, went over all services and **** that could trigger this within Windows 8.1 (Google-search for: Windows 8.1 disk usage 100%) , re-installed Photoshop and I still have the same problem.
So, I was wondering if there might be a solution to this problem or if anybody else is having this problem as well?
Thanks in advance!
UPDATE: This error applies only when I try to manipulate, add, edit or remove text. All other functions (not related to text) seem to work properly.

No, I don't know much about that, but I found a couple links for you..
"service host: Local system (network restricted)(11)" eating virtual memory
http://www.reddit.com/r/techsupport/comments/1b496x/windows_8_high_disk_usage_usually_arou nd_100_and/

System hangs when copying large quantity of files from external HD

A little background:
I was having some problems with the original OS (10.4.1), including periodic freezes. I bought the Mac Box Set '09 and installed Snow Leopard (10.6.5), but ran into some problems and in the process had to reformat my internal hard drive. I backed up all of my photos (~16GB), Documents (~1.5GB) and Music (~50GB) on a WD external hard drive (My Passport 750GB).
*The problem*: After the 10.6.5 install, the computer works great (no random freezing when I click around in Finder), but I am having trouble copying files back to the internal HD from the external. I can copy up to about 1GB at a time without any problems, but any time I try to copy more than that, the system hangs (first the spinning disk cursor, then it totally freezes) and I have to do a hard reset. I have tried copying a number of different folders (pictures and music), and the same holds true: small folders with a few files copy without a hitch, but any time I try to copy a lot of files at once: freeze city. This problem occurs whether I am using Finder to copy the files or iPhoto/iTunes to import them.
I have verified both disks using the Disk Utility AND restructured/verified them using DiskWarrior. I also had no problem copying all of my files from My Passport to a second external HD using this MacBook, so I assume the Passport is fine. Is this a physical problem with my internal HD? If so, why can't DiskWarrior or DiskUtility catch it? I just noticed that there is an internal HD recall for this model of macbook, although I have never gotten the question mark on startup that would qualify me for a replacement HD from Apple. Maybe it's a problem with Snow Leopard... I would love to know if anyone has had this problem before or has some advice.
Thanks,
Sam

External USB/FW drives 'falling off' or drives spinning down (going to sleep) and I would assume since you have been running 10.4 that the Passport might be older model, perhaps not the latest firmware, maybe not compatible with Macs and with Snow Leopard.
Obviously you want FW800 but for some, USB worked where FW fails.
Hard Reset: do you have another hard drive to boot from to run Disk Warrior? is that updated to 4.2 or later? you never want to run DW from CD. Else, boot from OS X 10.6.5; or Single User and run FSCK. HFS+ doesn't take kindly to hard restarts even though a Safe Boot helps a little, that isn't as good as FSCK or one of the other options.
Disk Warrior Rebuild is more thorough, but if you hold OPTION while clicking on REBUILD it brings up more choices. And you want to scan the full hard drive.
Going back to Aug/Sept 2009, there were a lot of threads about external hard drive issues. Wish I could point to a good one.

Random System Hangs - 100 % SSD Usage

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