Cpu load at half 100c

With my mac at 45 percent cpu load my mac will hit 100c on left for dead 2 before it has the time to speed up the fans, when the fans speed up it will lower it to 92-98c is this normal

Try a SMC reset:
https://support.apple.com/en-us/HT201295
Ciao.

Similar Messages

Limit CPU load of a single process

Is it possible to limit the CPU load of a certain process to e.g. 70% leaving 30% for the idle process?
I have some CPU intensive simulations with hard-disk access running over night. Does not make a difference if the job takes 4 hours or 6 hours - I am sleeping anyway. But I'd like to be nice to my beloved MacMini and keep it cool. The room temperatures are pretty hot this summer anyway and I don't know if my MacMini will withstand several hours at 100% CPU load, hard disk access and ambient temps of 38°C (100°F). Just want to be on the save side.
Is there a shell command like 'limit -cpu <process_id> 0.70' ?
Or can I clock my macMini at half the usual clock, i.e. at 700 MHz?
What about a loop: (1) 'kill -s stop <process_id>' (2) wait 3 secs (4) 'kill -s cont <process_id>' (4) wait 7 sec. - How to program that loop in a shell? Which command to set the timing?
many thanks
Markus

Thank you for your answer, etresoft.
Yes, you are right, nice +20 and nice -20 does not make any difference, because the process I want to slow down is the "only" one running (beside residual 5% system load).
Your Mac will be fine even running full-bore.
I am not sure about that.
First, the fans get loud. Unfortunately, the Mac is in my bedroom and I would prefer a system load of 50-70%.
Secondly, I had a compressor job running over night for 6 hours. In the morning, I had a very weird file system corruption. I suspect a 'thermal issue'.
http://discussions.apple.com/message.jspa?messageID=2715556
Maybe I'll do to 'kill -s start/stop'-in-a-loop script.
Unfortunately, I never wrote a shell script.
Any help how to make a loop and how to pause the script for 3 secs?
Many thanks
Markus
MacMini 1.42 GHz Mac OS X (10.3.9)

CPU runs at half the frequency in Satellite A

Not sure if this is a problem,but the CPU runs at half the frequency.I put the high performance plan and still the same.I think it should work at full power.
I also tried to disable CPU power option from the BIOS and did not help.
To monitor use CPU-Z and Speccy.
What you think about this?
It is normal?

Hi
The Intel CPU supports the Intel Turbo Boost Technology
This Intel Turbo Boost Technology dynamically increases the processor's frequency as needed by taking advantage of thermal and power headroom to give you a burst of speed when you need it and increased energy efficiency when you dont.
Also the CPU supports the Enhanced Intel SpeedStep Technology
The Enhanced Intel SpeedStep Technology is an advanced means of enabling high performance while meeting the power-conservation needs of mobile systems. Conventional Intel SpeedStep Technology switches both voltage and frequency in tandem between high and low levels in response to processor load. Enhanced Intel SpeedStep Technology builds upon that architecture using design strategies such as Separation between Voltage and Frequency Changes, and Clock Partitioning and Recovery.

Flash causes very high CPU load (including high Xorg load)

Hello everybody,
this is my first message. I'm an Arch user since a few months, and I'm pretty sure this is the distribution I'll stick to - I pratically love everything about it, especially its simpleness. It's the first Linux that doesn't scare me away with tons of configuration files scattered around dozens of different locations. I've already gotten quite a number of things fixed by myself without even looking at the forum or wiki.
Well, it seems most of these statements can be found in most first forum posts, so I'll stop to bore you...
The problem: Playing flash videos or animations causes incredible processor load: Even youtube takes a whole CPU core (or even a little more), top shows around 80% for Xorg and around 20-30% for Firefox (a little less with Opera). I'm on Arch64 with XFCE, Athlon X2 4600+, NVidia 8200 chipset (which has severe driver problems anyway; I'm using the latest NVidia beta driver). I'd try the open source nvidia driver, but (it seems that) there's no support for my chipset yet.
Currently I'm using Adobe's Flash64 alpha, before that I used various versions fo the nspluginwrapper. 32-bit Flash also caused high CPU load, but it wasn't that much and it may have been related to nspluginwrapper rather than anything else; however I have got the impression that things became even worse with the switch to the x64 alpha (performance-wise; on the other hand, it at least loads faster and doesn't crash anymore). Like said before, youtube takes one core, but it mostly works ok then, but videos with higher resolutions that youtube's are practically impossible to watch (except when there is very little movement in the film). Neither Flash hardware acceleration on nor off makes any difference.
I've already read half of the web, searched in forums, wikis, etc., but didn't find anybody with the same problem. When Flash64 was released and people were reporting good improvements, I was hoping it would be the same for me...
What I'm looking for is suggestions of things to try... I'm out of ideas what to try and where to look. It just seems strange that I seem to have problems that others don't...
Thanks for reading and for any comments.

cerbie wrote:And, do I know you from somewhere--a little more Windows-centric--or are there many ElkMonsters, out here?
Hehe, I'm also wondering how many Cerbies are out there...
Really funny. The internet is a small place, obviously. Us meeting in a Linux forum also explains why nobody writes to the LSML anymore.

Extremely high system CPU load on my new 2012 Macbook Pro

I just brought my brand new 2012 Macbook Pro (non-retina) home from the store and noticed that it was running INCREDIBLY slow. I opened up the activity monitor and found that the system's CPU load is consistently around 70%-90%. I haven't installed any software outside of google chrome, although the issue was happening even before I installed google chrome.
Here are screenshots of my macbook's specs
Here's a screenshot of the processes sorted by %CPU
Here's a screenshot of the processes sorted by CPU Time
Any idea what would cause such a high system CPU load? Again I haven't installed any software outside of google chrome, and I don't have anything hooked up to my Macbook. This issue happens when my Macbook is both plugged and unplugged and I haven't noticed any overheating or extensive fan use.

harkiamsuperman,
your first image shows Chrome using over half of the CPU time. Note that Chrome on Mavericks is more CPU-intensive than other browsers, since Google does not provide a 64-bit version of the app for OS X.
Since you’ve just brought your MacBook Pro home, perhaps Spotlight is doing its initial indexing of your internal disk; that could be one possible explanation. If that is the cause, then your CPU usage should settle down after it finishes.
If you’d like to try something simple and immediate, you could reset your MacBook Pro’s System Management Controller, to see if that makes a difference.

XServer CPU Leds on front are don't indicated current cpu load

Hello Everyone
As you know on front side of XServer four led lines one per CPU(logical), After last firmware upgrade half year ago they splashing only when Xserver restarted but when working Cpu load don't show, Only shine one blue bug led per avery line and don't shine small of load.
Average load 50-80% in Active Monitor
Boot ROM XS11.0080.B01

Ok. I think I've found the root cause of this issue. It seems that the WD Green drives use a thing called intellipark that will park the drive heads every 8 seconds. When used under Linux the normal flush interval for a drive is 30 sec so what appears to be happening is that the heads on the drive are parking too quickly resulting in any flush to the drive having to re-spin up the drive to write, killing performance and killing the drive. I don't know if this is causing the IO waits on my system but it seems likely. Though it happens on mine with active IO so I can't see that it's the drive spinning down unless the idle detection on the drive is haywire. Still. It's something else to try.
This thread contains some information about it:
http://www.networkedmediatank.com/showt … 327&page=1
Apparently WD have a dos utility that can disable or reprogram the park interval on these drives. It's called wdidle3.exe and is hard to come by.
WD only hand it out per support request but I managed to find a link to the file on the web, I haven't used it yet so I can't vouch for it. But if you want to try you can find it here:
http://home.arcor.de/ghostadmin/wdidle3_1_00.zip
The next problem is requiring a dos boot disk. If I can find my USB key I'll be making a USB Freedos disk so I can attempt to turn this off on my drive, then I can re-test.
I can't believe how seemingly hard it is for drive manufacturers (both the majors Seagate and WD), to get firmware and functions on these drives right. If I could find a sales rep for seagate or WD I'd gladly return these drives... Rectally.
Cheers,
Arkay.

50% CPU load @ Boot: nmbd crash and reload bug

I have seen several threads here and around the net about samba on OSX using over 50% of the CPU without showing up in the activity monitor OR in top on the command line. While this is easily solved by unchecking the Windows Sharing service under System Preferences -> Sharing, this is not a fix. It just hides the problem, samba is still broken, and those of us who actually need windows interoperability are left with a machine that gets very hot, has poor battery life, and performs sluggishly.
Don't get me wrong, I am grateful to the people who actually found out what the problem is and how to get around it for a bit, but the problem is not "solved".
I've used *nix flavors for several years now and I have never seen this problem before. After having a MacBook for 8 days, I am now very frustrated.
So, what do we do to FIX the problem? An hour and a half on the phone with Apple Tech Support and I've learned that this problem has persisted through OSX 10.1 - 10.4.6, x86 and PPC. One person in these forums is trying (unsuccessfully I might add) to rebuild samba from scratch (for a different reason, they need ldap support: http://discussions.apple.com/thread.jspa?messageID=2166703

I just diagnosed this problem on my new MacBook. I had seen that suddenly my CPUs would peg for no reason. Finally after a few days of frustrating work trying to identify the offending program I noticed that nmbd would be launched time and time again as a root process and the CPU load would correspond with it, but its process would not be shown consuming the cycles. Looking up what nmbd did I killed Windows file sharing and the problem was resolved. Looks like the program crashes and causes all of the load on the CPUs, but a debugger never comes up or message from the Finder saying it crashed. It was only consuming 1.25megs of RAM on my system before the problem would happen over and over. Looking on my friends MacMini with identical specs to my MacBook, his constantly uses about 3.58 megs of RAM. Process broken on MacBooks only? Dunno...
Yes it *****, but at least I know my computer isnt actually busted like I was beginning to suspect nor was it any of the various beta programs / haxies I may have been running. (Since all of them were gone once I did a clean install.) Maybe 10.4.7 will address it?

90% cpu load on ubuntu 8.04

Hello all,
I made a visualization for sorting algorithms. (The code is to long to post it here)
I developed the app under this system:
Windows Vista Home x64
Dualcore ~2.6GHz
Java Version: 1.6.0 Update 7 32bit
and i have a cpu load of ~10% when i run the app.
I asked my friend to test the app under his OS:
Ubuntu 8.04
Dualcore ~2.2Ghz
Java Version: 1.6.0 Update 7 32bit
and he got a cpu load of over 90%!
We both had no running tasks in background. It was only the java app.
Are there any known issues about this problem or could could it be a coding problem?
Btw the programm uses round about 8 Threads.
TIA

mod235711 wrote:
I'm sry.
Ok i try to specify a little bit more.
e.g.: I have this code snippet to check whenever the algorithm has finished.
while (!algorithm.isIdle())
                              try
                                   sleep(1);
                              catch (InterruptedException e)
                                   clockRefresh.interrupt();
                                   setIdle();
                         }Without the sleep I have a cpu load of 50% (of course, because it is an endless loop until the algorithm has finished).
But with the sleep time it's just 1 or 2%.
I want to know if there is a known issue in the JVM that causes threads on some systems to use to much cpu load.
Or could it be a coding problem?
What do you think about the sleep time in this loop?
Or could the high cpu load be caused by bad coding?After reading this post I could not read further. There is the problem. You're doing a sleep(1) .....
Even in C that will most likely kill any cpu. Try to use joins: elegant and faster ;)

How do you spread CPU load over more cores?

Hi
I recently bought a macbook pro quadcore i7 because my 2007 macbook couldn't cope with the demands of Logic when using it rewired with Ableton Live, and had lots of CPU overload messages.
I am really disappointed that having spent so much money to overcome this problem, it has only slightly improved the amount of overload messages. I read the article below about how to spread CPU power over the cores, now I have 8. I still can't figure out though how to control which channels are using which core and spreading the CPU load to cores 5-8 which don't seem to be being used. Any ideas?
Can I rewire from ableton to different cores?
In my project, the 2nd core keeps overloading whilst the others are down. Is it to do with aux channels, master channels, buses etc?
Or should I upload my memory to 8GB RAM?
Thanks
Steve
Here's the article:
About core activity
Logic breaks tasks down into threads that can be assigned to a single core for execution. It's not possible to split a single thread across multiple cores, although a single core may run multiple threads at the same time. This is one reason that you may sometimes see uneven load distributions across the available cores on your computer. If one thread is very processor-intensive, the core running that thread may show much more activity than the cores running less demanding tasks. This is the main reason that you may get "Core Audio Overload" warning messages even though some of the cores on your system may not show significant activity.
To monitor Logic as it uses the cores on your system, double-click the CPU meter in the Transport area.
A window displays a meter for each core.
The same concept applies to channel strips as well. Each channel strip—and all plug-ins it contains—is processed by one core. If you are using many processor-intensive plug-ins on a single channel strip, the core running it may show heavier activity. This is especially true if you are working at high sample rates (88.2 kHz or higher).
Redistributing core loads
If you find that a single core has much higher activity, use these strategies to redistribute the load.
In the example below, there is a single Software Instrument channel strip with plug-ins routed directly to Output 1-2. The channel strip for Output 1-2 has a large number of plug-ins.
In this example there is activity on two cores: the left core is handling the Software Instrument while the next core processes the Output 1-2 channel strip. You can use routing capabilities in Logic to distribute the load to more cores without changing the sound, as in the next image.
The resulting signal chain is Inst 1 > Aux 1 > Aux 2 > Out 1-2, as shown in this table:
Channel strip
Input
Output
Inst 1
Bus 1
Aux 1
Bus 1
Bus 2
Aux 2
Bus 2
Out 1-2
Also, the first four plug-ins have moved from Output 1-2 to Aux 1 and the remaining four plug-ins to Aux 2.
After adjusting the volumes to the respective channel strips appropriately, the result sounds identical, but now the load is distributed among four cores instead of two. You can use this concept to redistribute plug-ins from Audio channel strips, Software Instruments, Auxes, and Outputs (as in this example).
In the image above, there is still a very heavy load on a single core, even though it's using the routing described above. Notice the Inst 1 channel strip is selected. When a Software Instrument track is selected in the Arrange window, Logic enters "Live Input Mode". In this mode, Logic turns on every plug-in in the channel strip's signal path so the channel strip can be played live from a MIDI controller. All of this must be handled by a single thread and therefore just one core. It's a good idea to keep a track that uses an Audio channel strip selected in the Arrange window, unless you're actively playing or recording to a Software Instrument.

OS X Snow Leopard introduced Grand Central, where the OS will distribute the load better to more cores, however it takes time for software to adapt to these changes and make a rewrite of the codebase and test it out, Apple's included.

Kernel_task running above 500% CPU load on my Macbook Pro running OSX 10.9.4

I recently upgrade my Macbook Pro to OSX 9.0.4 and the system is running sluggishly slow, Activity Monitor showing kernel_task always running above 500% CPU load, system fan always running loud at startup but laptop is not overheating. Below is the EtreCheck report, hoping if anyone can help me fix this issue, much appreciate it. Btw, I have done the SMC reset, but nothing has helped.
EtreCheck version: 1.9.13 (49)
Report generated 16 August 2014 2:30:27 pm AEST
Hardware Information: ?
MacBook Pro (Retina, Mid 2012) (Verified)
MacBook Pro - model: MacBookPro10,1
1 2.3 GHz Intel Core i7 CPU: 4 cores
8 GB RAM
Video Information: ?
Intel HD Graphics 4000 - VRAM: (null)
Color LCD 2880 x 1800
NVIDIA GeForce GT 650M - VRAM: 1024 MB
System Software: ?
OS X 10.9.4 (13E28) - Uptime: 0 days 0:17:38
Disk Information: ?
APPLE SSD SM256E disk0 : (251 GB)
S.M.A.R.T. Status: Verified
EFI (disk0s1) <not mounted>: 209.7 MB
Macintosh HD (disk0s2) / [Startup]: 250.14 GB (103.87 GB free)
Recovery HD (disk0s3) <not mounted>: 650 MB
USB Information: ?
Apple Inc. FaceTime HD Camera (Built-in)
Apple Inc. BRCM20702 Hub
Apple Inc. Bluetooth USB Host Controller
Apple Inc. Apple Internal Keyboard / Trackpad
Thunderbolt Information: ?
Apple Inc. thunderbolt_bus
Gatekeeper: ?
Mac App Store and identified developers
Kernel Extensions: ?
[not loaded] com.digidesign.fwfamily.driver (8.0.3f1) Support
[loaded] com.digidesign.iokit.DigiDal (8.0.3f1) Support
[not loaded] com.digidesign.mbox2.boot.driver (9.0f4) Support
[not loaded] com.digidesign.mbox2.driver (9.0f4) Support
[not loaded] com.digidesign.usb.elevenrack.driver (1.0.1) Support
[not loaded] com.paceap.kext.pacesupport.leopard (5.8 - SDK 10.4) Support
[not loaded] com.paceap.kext.pacesupport.master (5.8) Support
[not loaded] com.paceap.kext.pacesupport.panther (5.8 - SDK 10.3) Support
[loaded] com.paceap.kext.pacesupport.snowleopard (5.8 - SDK 10.6) Support
[not loaded] com.paceap.kext.pacesupport.tiger (5.8 - SDK 10.4) Support
Startup Items: ?
Digidesign Mbox 2: Path: /Library/StartupItems/Digidesign Mbox 2
DigidesignLoader: Path: /Library/StartupItems/DigidesignLoader
PACESupport: Path: /Library/StartupItems/PACESupport
Problem System Launch Agents: ?
[loaded] com.paragon.NTFS.trial.plist Support
[loaded] com.paragon.NTFS.upd.plist Support
Launch Daemons: ?
[loaded] com.adobe.fpsaud.plist Support
[running] com.cleverfiles.cfbackd.plist Support
[running] com.digidesign.elevenrack.helper.plist Support
[running] com.digidesign.fwfamily.helper.plist Support
[loaded] com.google.keystone.daemon.plist Support
[loaded] com.macpaw.CleanMyMac2.Agent.plist Support
[loaded] com.oracle.java.JavaUpdateHelper.plist Support
[running] com.paceap.eden.licensed.plist Support
[not loaded] com.teamviewer.teamviewer_service.plist Support
[loaded] PACESupport.plist Support
Launch Agents: ?
[loaded] com.google.keystone.agent.plist Support
[not loaded] com.teamviewer.teamviewer.plist Support
[not loaded] com.teamviewer.teamviewer_desktop.plist Support
User Launch Agents: ?
[failed] com.facebook.videochat.[redacted].plist Support
[loaded] com.macpaw.CleanMyMac2Helper.diskSpaceWatcher.plist Support
[loaded] com.macpaw.CleanMyMac2Helper.scheduledScan.plist Support
[loaded] com.macpaw.CleanMyMac2Helper.trashWatcher.plist Support
User Login Items: ?
iTunesHelper
SmartDaemon
BitTorrent
uTorrent
Knock
Autodesk 360
Internet Plug-ins: ?
JavaAppletPlugin: Version: Java 7 Update 55 Check version
FlashPlayer-10.6: Version: 14.0.0.145 - SDK 10.6 Support
Default Browser: Version: 537 - SDK 10.9
Flash Player: Version: 14.0.0.145 - SDK 10.6 Outdated! Update
QuickTime Plugin: Version: 7.7.3
o1dbrowserplugin: Version: 5.4.2.18903 Support
googletalkbrowserplugin: Version: 5.4.2.18903 Support
iPhotoPhotocast: Version: 7.0
Safari Extensions: ?
AllMyTube
Searchme-2
iTube Studio
Audio Plug-ins: ?
BluetoothAudioPlugIn: Version: 1.0 - SDK 10.9
AirPlay: Version: 2.0 - SDK 10.9
AppleAVBAudio: Version: 203.2 - SDK 10.9
iSightAudio: Version: 7.7.3 - SDK 10.9
iTunes Plug-ins: ?
Quartz Composer Visualizer: Version: 1.4 - SDK 10.9
3rd Party Preference Panes: ?
Digidesign Eleven Rack Support
DigidesignMbox2 Support
Digidesign Mbox 2 Pro Support
Flash Player Support
MacFUSE Support
Paragon NTFS for Mac ® OS X Support
Time Machine: ?
Time Machine not configured!
Top Processes by CPU: ?
      4% WindowServer
      4% Google Chrome
      1% cfbackd
      0% AppleSpell
      0% Activity Monitor
Top Processes by Memory: ?
213 MB Finder
156 MB Dock
156 MB com.apple.IconServicesAgent
123 MB WindowServer
115 MB Google Chrome
Virtual Memory Information: ?
4.43 GB Free RAM
2.21 GB Active RAM
414 MB Inactive RAM
971 MB Wired RAM
527 MB Page-ins
0 B Page-outs

The kernel is using excessive processor cycles. Below are some possible causes for the condition.
Throttling
When it gets high temperature readings from the hardware, or a low-voltage reading from the battery, the kernel may try to compensate by interrupting the processor(s) to slow them down and reduce power consumption. This condition can be due to:
☞ a buildup of dust on the logic board
☞ high ambient temperature
☞ a worn-out or faulty battery in a portable
☞ the malfunction of a cooling fan, a temperature sensor, a voltage sensor, or some other internal component
Note that if the problem is caused by a sensor, there may be no actual overheating or undervoltage.
If the computer is portable, test with and without the AC adapter connected. If kernel_task hogs the processor only on battery power, the fault is in the battery or the logic board. If it happens only on AC power, charging is causing the machine to heat up. That may be normal on some models. CPU usage should drop when charging is complete.
Apple Diagnostics or the Apple Hardware Test, though not very reliable, is sometimes able to detect a fault. For more thorough hardware testing, make a "Genius" appointment at an Apple Store, or go to another authorized service provider.
If nothing is wrong with the hardware, then whatever you can do to improve cooling may help.
Installed software
User-installed software that includes a device driver or other kernel code may thrash the kernel. That category includes virtualization software, such as Parallels and VMware, as well as most commercial "anti-virus" products. Some system-monitoring applications, such as "iStat," can also contribute to the problem. You can test for this possibility by completely disabling or removing the software according to the developer's instructions, or starting in safe mode. Note, however, that disabling a system modification without removing it or testing in safe mode may not be as easy as you think.
Corrupt NVRAM or SMC data
Sometimes the problem is cleared up by resetting the NVRAM or the SMC.
External display
Connecting an external LCD display to some MacBook Pro models while the lid is open may cause this issue. If applicable, test by closing the lid or disconnecting the display. You might get better results with a newer LED display.

High CPU load on SUP720-3BXL / C6k

Hi,
I know it has been discussed many times before, but may I get some new inspiration to solve some problems here.
We've some c6509 with SUP720-3BXL. One of routers has a WS-X6704-10G module with DFC. This is the only card installed besides the SUP720. We're run into some heavy CPU problems regarding the RP:
c6k-05#sh proc cpu sorted
CPU utilization for five seconds: 71%/12%; one minute: 77%; five minutes: 78%
PID Runtime(ms)   Invoked      uSecs   5Sec   1Min   5Min TTY Process
252    70001864 72821359        961 37.88% 34.97% 33.83%   0 Earl NDE Task
12    13535512   7478495       1809 9.67% 7.18% 5.88%   0 ARP Input
354    13418508    655279      20477 7.27% 6.52% 6.47%   0 CEF: IPv4 proces
275     5628156 14433722        389 2.79% 2.47% 2.46%   0 ADJ resolve proc
273     5720936   8782567        651 0.31% 0.56% 2.06%   0 IP Input
SP looks like normal:
c6k-05#remote command switch sh proc cpu sorted
CPU utilization for five seconds: 24%/0%; one minute: 24%; five minutes: 25%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
316 5711876 422724 13512 6.55% 3.36% 3.18% 0 Hardware API bac
109 10629720 20123627 528 6.31% 6.87% 6.98% 0 slcp process
3 10847468 988165 10977 5.27% 6.11% 6.13% 0 CEF: IPv4 proces
253 3055016 108213 28231 1.67% 1.70% 1.70% 0 Vlan Statistics
c6k-05.nc#sh proc cpu history
7777666668888888888999998888877777777766666777777777777777
6666888880000044444222220000000000333399999555557777755555
100
90 *****
80 **** ******************** ***************
70 **********************************************************
60 **********************************************************
50 **********************************************************
40 **********************************************************
30 **********************************************************
20 **********************************************************
10 **********************************************************
0....5....1....1....2....2....3....3....4....4....5....5....
0 5 0 5 0 5 0 5 0 5
CPU% per second (last 60 seconds)
9999988999999999888989899999999889999999999999999999999999
1522389859375081979774546389531690556610500213560563134442
100 * *** ** * * * *#* **** * ** **
90 **************************##******************************
80 #############*#########*##################################
70 ##########################################################
60 ##########################################################
50 ##########################################################
40 ##########################################################
30 ##########################################################
20 ##########################################################
10 ##########################################################
0....5....1....1....2....2....3....3....4....4....5....5....
0 5 0 5 0 5 0 5 0 5
CPU% per minute (last 60 minutes)
* = maximum CPU% # = average CPU%
9999999999999999999999999999999999999999999999999
9999999999999999999999999999998999999999999999999
100 *************************************************
90 *****##******************************************
80 #################################################
70 #################################################
60 #################################################
50 #################################################
40 #################################################
30 #################################################
20 #################################################
10 #################################################
0....5....1....1....2....2....3....3....4....4....5....5....6....6....7.
0 5 0 5 0 5 0 5 0 5 0 5 0
CPU% per hour (last 72 hours)
* = maximum CPU% # = average CPU%
Our Netflow statistics will consume many of the CPU time, this is clear.
ip flow-cache timeout inactive 10
ip flow-cache timeout active 1
mls aging fast time 14
mls aging long 64
mls aging normal 45
mls netflow interface
mls netflow usage notify 90 21600
mls flow ip interface-full
mls flow ipv6 interface-full
mls nde sender version 5
Anything else to search for? This box has a lot of L3 VLANs and many many /24 subnets as secondary addresses inside the SVIs. QoS and COOP is enabled and heavily used. The box receive one full-table (~508k), one partial table (~130k) and two iBGP feeds with ~1k prefixes.
c6k-05#sh int te1/1 | i 5 minute
5 minute input rate 917021000 bits/sec, 576857 packets/sec
5 minute output rate 1021949000 bits/sec, 376221 packets/sec
c6k-05.nc#sh int te1/3 | i 5 minute
5 minute input rate 1266207000 bits/sec, 450679 packets/sec
5 minute output rate 2140145000 bits/sec, 1342052 packets/sec
c6k-05#sh ver | i IOS
Cisco IOS Software, s72033_rp Software (s72033_rp-ADVENTERPRISEK9_WAN-M), Version 12.2(33)SXI14, RELEASE SOFTWARE (fc2)
Don't know if this is CPU related: (messages appears every 2-3 min. in the log)
Nov 25 15:51:45.558 CET: %SYS-3-CPUHOG: Task is running for (204)msecs, more than (200)msecs (14/7),process = BGP Scheduler.
-Traceback= 4035A898 4036D818 4036D9AC 4166696C 4036F228 4036F310 4166BB70 4166BB5C
Any suggestions? Thanks in advance.
Thomas

Hi Rajeev,
we have temporary disabled Netflow after we ran into a flapping BGP session problem one hour ago. Router killed BGP related processes due to no free CPU time.
After disabling Netflow, the load of the RP has been decreased dramaticly from <80% to ~30%. But we can't disable Netflow at all because we need the flows to get information for our DDoS protection.
We have now increased CPU ressources for processes:
(no scheduler max-task-time)
scheduler allocate 10000 4000
CPU load is (very) high again:
c6k-05.nc#sh proc cpu sorted
CPU utilization for five seconds: 90%/21%; one minute: 85%; five minutes: 86%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
252 107378140 111133354 966 23.43% 25.49% 23.13% 0 Earl NDE Task
563 7056500 8738616 807 17.75% 2.72% 2.12% 0 SNMP ENGINE
354 21164144 876799 24138 5.75% 6.37% 6.35% 0 CEF: IPv4 proces
12 22983692 11691250 1965 5.43% 6.08% 5.60% 0 ARP Input
273 10269700 12841900 799 4.95% 9.15% 11.49% 0 IP Input
329 889568 11066 80387 3.35% 0.41% 0.27% 0 IP Background
275 8864220 22191938 399 2.63% 2.48% 2.50% 0 ADJ resolve proc
342 3048616 225163 13539 1.51% 0.73% 0.72% 0 IPC LC Message H
514 3188912 929923 3429 1.27% 0.84% 0.89% 0 BGP Router
52 319360 7229 44177 1.19% 0.14% 0.07% 0 Per-minute Jobs
561 634184 4164207 152 0.63% 0.18% 0.16% 0 IP SNMP
All is unsatisfactory :-(
Kind regards,
Thomas

Hwmond high cpu load after 10.6.8 update

hwmond is causing up to 70% cpu load after every reboot on several xserves i manage caused by the update to 10.6.8. anybody else having this problem? it can be solved by hwmond -s5 to set the hwmond interval to 5 seconds but this command is not processed properly, is causing an error message "IOConnectMethodScalarIScalra0 call return err = 0xE00002BC" and has to be exited with cmd+c. Also, the com.apple.hwmond.plist in LaunchDaemons is empty.

In my case:
I installed 10.6.8 via the Combo Update, was running 10.6.7 previous to this.
/System/Library/LaunchDaemons/com.apple.hwmond.plist still exists and is not empty
/etc/hwmond.SMART still exists and is not empty
/etc/hwmond.conf didn't exist, so from Terminal.app I simply issued "sudo touch /etc/hwmond.conf"
I tried:
In Terminal.app, ran:sudo launchctl unload /System/Library/LaunchDaemons/com.apple.hwmond.plist
Then, backed up /usr/sbin/hwmond and /System/Library/LaunchDaemons/com.apple.hwmond.plist
From a Mac Pro running 10.6.7 Server, copied both the binary and the plist to the same spots on the Xserve, then, in Terminal.app, ran:sudo launchctl load /System/Library/LaunchDaemons/com.apple.hwmond.plist
That didn't change a thing. hwmond still spiked.
Put everything back the way it was.
And:
In Terminal.app, ran:sudo launchctl unload /System/Library/LaunchDaemons/com.apple.hwmond.plist
Backed up /System/Library/LaunchDaemons/com.apple.hwmond.plist
Made another copy to the Desktop
Edited this copy and added a string in ProgramArguments with a value of "-S255", but this still caused hwmond to spike after putting this copy back in LaunchDaemons, repairing permissions, and loading the plist via launchctl again. Any valid value still caused it to spike. However my Xserve now reboots if I set the value to an invalid value, like "-s256". Then again this also caused com.apple.hwmond and com.apple.launchd to create entries in the system log complaining about the value with hwmond attempting to relaunch itself every 10 seconds:
6/24/11 2:37:10 PM com.apple.hwmond[2697] hwmond: n should be 1 to 255 seconds
6/24/11 2:37:10 PM com.apple.launchd[1] (com.apple.hwmond[2697]) Exited with exit code: 1
6/24/11 2:37:10 PM          com.apple.launchd[1] (com.apple.hwmond) Throttling respawn: Will start in 10 seconds
OP, Armin, did something similar, but I think he tried doing it directly in Terminal, not using launchctl / launchd, which caused the error he mentioned.
Finally, added a "Disabled" item, with a boolean value of YES to the plist, recopied it, repaired permissions again (launchctl will complain and won't load the plist if you don't). This way hwmond is disabled, I can reboot my Xserve, and wait until Apple figures this out.
Full com.apple.hwmond.plist on my Xserve looks like this now:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
          <key>Label</key>
          <string>com.apple.hwmond</string>
          <key>OnDemand</key>
          <false/>
          <key>Program</key>
          <string>/usr/sbin/hwmond</string>
          <key>ProgramArguments</key>
          <array>
                    <string>hwmond</string>
                    <string>-s255</string>
          </array>
          <key>ServiceIPC</key>
          <false/>
          <key>Disabled</key>
          <true/>
</dict>
</plist>
Edit: I too have filed a bug report with a link to this thread included.
Second Edit: Server Monitor.app still works after disabling hwmond via the plist even after a reboot.
Third Edit: Sorry, keep remembering things, a modified /usr/sbin/hwmond was included the 10.6.8 Server Combo Update package, but not the Delta. Not sure if this matters. How has everyone updated to 10.6.8 so far? Like I mentioned, I used the Combo.

Problem... High CPU load with HDD. Please Help

Hello all,
Im stuck. Ive got a MSI KA790GX which has poor HDD access/transfer, low burst rate and very high CPU load.
As far as i know the Western Digital 640gb WD6401AALS Black should be a fast hard drive. Which according to reviews/HD Tune,
should be:-
Minimum 60mb/sec
Maximum 120mb/sec
Average 95mb/sec
Access 12ms
Burst 110mb/sec
CPU 5%
No matter what I try, i always get poor results...
My MSI KA790GX
Minimum 41mb/sec ~ 54mb/sec
Maximum 104mb/sec ~ 108mb/sec
Average 86mb/sec ~89mb/sec
Access 12ms
Burst 60mb/sec ~ 80mb/sec
CPU 26% ~ 44%!!!!!!!!
I could accept not getting the same high speed results as the review/reference, even if the burst rate sucked.
But one of the cores goes to 50%-60% load during hdd activity. Thats just crazy!!
I have tried...
IDE mode, AHCI, RAID Ready, RAID Single Disk
SATA Port 1, 2, 3, 4 + 5
Different SATA cables
Flashed bios, cleared bios, optimised defaults, failsafe defaults
Windows XP 32bit, Vista 32bit, Vista 64bit. fresh installs
MSI CD Drivers, MSI Web Drivers, AMD/ATI Web Drivers
... and combinations of.
I have also tested the WD640gb Black on another older PC, with Nvidia (55?) chipset and slower (1.9ghz x2) cpu.
Transfer rates were slightly better than my KA790GX but, Burst Rate = 115mb/sec and CPU usage = 13%.
I also tried a Seagate 1.5tb (ST31500341AS) on both PCs,
Nvidia chipset
Minimum 65mb/sec
Maximum 134mb/sec
Average 107mb/sec
Access 14ms
Burst 83mb/sec
CPU 7%
On my MSI KA790GX
Minimum 55mb/sec
Maximum 120mb/sec
Average 100mb/sec
Access 14ms
Burst 87mb/sec
CPU 33%!!!!
Could someone please please help, ive spent hours and hours on this. Its doin my head in.
I just hope its something stupid ive missed, cos i still not used my HD4850 from christmas :-(
Thanks.

Sm3K3R
Not sure how to check PIO/DMA mode on a SATA device. IDE devices show DMA enabled.
BIOS version 1.4 - 29 December 2008, and now version 1.51
Fredrik
I have Vista 64, but i did try XP32 and Vista32 and got similar poor results.
I tested HDD speed with, HD Tune 2.55 and HD Tune 3.50 trial.
No auto-start programs really, Windows clean installs + any drivers.
Quadrifoglio Verde
CPU @ default 2800mhz, All mem bios options to auto/defaults
Windows Experience Index, CPU Score = 5.3
AMD Overdrive
Integer Computation = 8220
Floating Point Computation = 5325
Memory speed = 1770
Cache Speed = 10790
System Performance = 7403
Bas
I used HDTune because I could reference to other results. Whats a better program to use?
Windows Experience Index, HDD Score = 5.9.
But I have no reference and cant be sure of cpu load.
Sepher
Bios defaults to C&C and C1E off so i have tried them. Also windows power settings, balanced/high performance.
UPDATE
Reinstalled Vista64 but loaded the AHCI driver from the disk config screen. This seems to have stopped the high cpu usage during disk activity.
HDTune with Windows Power settings @ High Performance,
Min = 52mb/sec
Max = 106mb/sec
Ave = 88mb/sec
Access = 12ms
Burst = 77mb/sec
CPU = 3.4%
HDTune with Windows Power settings @ Balanced
Min = 54mb/sec
Max = 104mb/sec
Ave = 87mb/sec
Access = 12ms
Burst = 65mb/sec
CPU = 12%
So now transfer speed is about 10% slower than reference. But burst speed is terrible.
I also used IBM Feature Tool to change the HDD AAM to 'performance mode' 254 as suggested elsewhere.
Long shot as the hdd performs ok with other hardware. same results.
Also MSI support asked me to try a newer bios, version 1.51. same results.
Anyone know what the AMD 7-Series Chipsets Disk Performance Utility does, and should i run it in Vista64?
Thanks for all the replies, hope i can sort this, not played any PC games since Quake 3 on my ti4600...

Adobe Reader 9.4-1 cause 100% CPU load on EL40 system

Hi,
when starting Adobe reader 9.4-1 on a Enterprise Linux 4 system the cpu load directly goes up to 100%
This happens on EL40 update 4, 5 & 8
I´m using gnome.
uname -a
Linux 2.6.9-89.0.0.0.1.ELsmp #1 SMP Tue May 19 04:23:49 EDT 2009 i686 i686 i386 GNU/Linux
cat /etc/redhat-release
Red Hat Enterprise Linux AS release 4 (Nahant Update 8)
Kind regards
Agent

I had the same problem on a RHEL4 system, I think starting with 9.3.1. The system requirements say only RHEL 5 is supported so I just uninstalled 9.3 and didn't look into it further.

Instruments: Average CPU Load over one minute

Hi everyone.
I've written some compositions in Quartz Composer and want to demonstrate how they tax the CPU in various conditions.
I've opened up Instruments and I can get it to give me a readout for the individual process (Quartz Composer) but I can't see any obvious way to average the CPU load... I can see the peaks, but I'd much rather know what the average is over 1 minute, in this instance (I want to compare different compositions - there's no variables within them as such...)
I found a little DTrace script in the apple docs, but couldn't really get it to work... it would quit with an error after about 45 seconds...
Anyone got any ideas?

OS X Snow Leopard introduced Grand Central, where the OS will distribute the load better to more cores, however it takes time for software to adapt to these changes and make a rewrite of the codebase and test it out, Apple's included.

Cpu load at half 100c

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