10.4.7 kernel_task eats 70% of CPU only when computer wakes from sleep.

On my machine (FW 800), 10.4.7 caused: machine to slow perceptably after wake from sleep. Activity Monitor tells me kernel_task is consuming hundreds of times it's normal CPU cycles.
I installed a FRESH 10.4. Imported my files and folders. Upgraded all the Apple software EXCEPT 10.4.7 combo updater. The partition worked fine, before and after sleep. Upgraded using the 10.4.7 combo updates.
Again, kernel_task consumes 60-70% of CPU cycles after my Mac wakes from sleep. Note that it works fine when first rebooted.
As slow as it was, it was unusable. I reverted to 10.4.6 to get work done.

I have the very same problem on the same platform, except that I have 2 int. bootable disk drives. One boots 10.4.6 and has no problems at all. The other Boots 10.4.7 and operates perfectly, as far as I can tell from a few hours of use. It will continue to work just fine until I put it to sleep. On awakening, the Kernal Tasks CPU Usage jumps to 55% - 75% and does not decrease any further (ever). Restart or Shutdown restores perfect operation after reboot (but don't let him fall asleep).
I have repeated this dozens of times, with identical results.
The update was performed by the book. External devices disconnected, permissions repaired, disk verified by Disk Util. and DiskWarrior and the 10.4.7 combined update was used. Permissions and Drive Verif. was repeated after sucessful install. In my case, no other apps were effected. No Sys Errors were logged, No crash events, no Kernel Panics.
There are thousands of Sys Config combinations involving both hardware and sotware. This looks like a flawed release on this hardware. "Updater Beware", especially the first month after a major release like this. Look for a fix very soon.
Even so, the people at Apple have done extremely well over the last few years.
I know, because I work with a dozen or more Generic PCs and there has never been a trouble free update from the other side.
Having a second internal hard disk with identical OS and applications is like having a second computer in the same case. It is also a good idea to use backup software to auto-sync your user files in realtime. You can boot from one while repairing the other etc.

Similar Messages

Macbook Pro won't wake from sleep - Error 4 trying to transition CPU 1 to OFF

My macbook pro wont wake from sleep, it restarts and I get this problem report / kernal panic, if anyone could help that would be wonderfull. Thankyou.
Interval Since Last Panic Report: 203371 sec
Panics Since Last Report:          15
Anonymous UUID:                    XXXXXXXX
Mon Apr 22 17:42:20 2013
panic(cpu 0 caller 0xffffff80046c02ee): "Error 4 trying to transition CPU 1 to OFF"@/SourceCache/xnu/xnu-2050.22.13/osfmk/i386/acpi.c:182
Backtrace (CPU 0), Frame : Return Address
0xffffff80e6cbbc70 : 0xffffff800461d626
0xffffff80e6cbbce0 : 0xffffff80046c02ee
0xffffff80e6cbbd40 : 0xffffff7f8694f8d3
0xffffff80e6cbbd70 : 0xffffff7f86952e9a
0xffffff80e6cbbd90 : 0xffffff8004a59e7e
0xffffff80e6cbbde0 : 0xffffff8004a75432
0xffffff80e6cbbe20 : 0xffffff8004a3b6e6
0xffffff80e6cbbe60 : 0xffffff8004a35a42
0xffffff80e6cbbeb0 : 0xffffff8004a3f8c4
0xffffff80e6cbbef0 : 0xffffff8004a3f99f
0xffffff80e6cbbf30 : 0xffffff8004a452aa
0xffffff80e6cbbf80 : 0xffffff8004a453d9
0xffffff80e6cbbfb0 : 0xffffff80046b2977
      Kernel Extensions in backtrace:
         com.apple.driver.AppleACPIPlatform(1.7)[D49DC2E0-97DF-32E6-A8ED-7A12EF1AA51B]@0 xffffff7f86945000->0xffffff7f8699cfff
            dependency: com.apple.iokit.IOACPIFamily(1.4)[A35915E8-C1B0-3C0F-81DF-5515BC9002FC]@0xfffff f7f84be6000
            dependency: com.apple.iokit.IOPCIFamily(2.7.3)[1D668879-BEF8-3C58-ABFE-FAC6B3E9A292]@0xffff ff7f84ca3000
BSD process name corresponding to current thread: kernel_task
Mac OS version:
12D78
Kernel version:
Darwin Kernel Version 12.3.0: Sun Jan 6 22:37:10 PST 2013; root:xnu-2050.22.13~1/RELEASE_X86_64
Kernel UUID: 3EB7D8A7-C2D3-32EC-80F4-AB37D61492C6
Kernel slide:     0x0000000004400000
Kernel text base: 0xffffff8004600000
System model name: MacBookPro6,2 (Mac-F22586C8)
System uptime in nanoseconds: 42160665696
last loaded kext at 9523564336: com.apple.driver.AppleHWSensor          1.9.5d0 (addr 0xffffff7f866a0000, size 36864)
loaded kexts:
com.apple.driver.AppleHWSensor          1.9.5d0
com.apple.filesystems.autofs          3.0
com.apple.driver.AppleBluetoothMultitouch          75.19
com.apple.driver.AppleTyMCEDriver          1.0.2d2
com.apple.driver.AGPM          100.12.87
com.apple.driver.AudioAUUC          1.60
com.apple.driver.IOBluetoothSCOAudioDriver          4.1.3f3
com.apple.driver.IOBluetoothA2DPAudioDriver          4.1.3f3
com.apple.iokit.IOBluetoothSerialManager          4.1.3f3
com.apple.iokit.IOBluetoothUSBDFU          4.1.3f3
com.apple.iokit.BroadcomBluetoothHCIControllerUSBTransport          4.1.3f3
com.apple.iokit.IOUserEthernet          1.0.0d1
com.apple.Dont_Steal_Mac_OS_X          7.0.0
com.apple.driver.ApplePolicyControl          3.3.0
com.apple.driver.AppleLPC          1.6.0
com.apple.driver.AppleBacklight          170.2.5
com.apple.driver.AppleMikeyHIDDriver          122
com.apple.driver.AppleHDAHardwareConfigDriver          2.3.7fc4
com.apple.driver.AppleHDA          2.3.7fc4
com.apple.GeForce          8.1.0
com.apple.driver.AppleMikeyDriver          2.3.7fc4
com.apple.driver.AppleUpstreamUserClient          3.5.10
com.apple.driver.AppleMCCSControl          1.1.11
com.apple.driver.AppleSMCPDRC          1.0.0
com.apple.driver.AppleSMCLMU          2.0.3d0
com.apple.driver.AppleIntelHDGraphics          8.1.0
com.apple.driver.ACPI_SMC_PlatformPlugin          1.0.0
com.apple.driver.AppleMuxControl          3.3.0
com.apple.driver.AppleIntelHDGraphicsFB          8.1.0
com.apple.nvidia.NVDAStartup          8.1.0
com.apple.driver.SMCMotionSensor          3.0.3d1
com.apple.driver.AppleUSBTCButtons          237.1
com.apple.iokit.SCSITaskUserClient          3.5.5
com.apple.driver.AppleUSBCardReader          3.1.7
com.apple.driver.AppleUSBTCKeyEventDriver          237.1
com.apple.driver.AppleUSBTCKeyboard          237.1
com.apple.driver.AppleIRController          320.15
com.apple.driver.AppleFileSystemDriver          3.0.1
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless          1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib          1.0.0d1
com.apple.BootCache          34
com.apple.driver.XsanFilter          404
com.apple.iokit.IOAHCIBlockStorage          2.3.1
com.apple.driver.AirPort.Brcm4331          614.20.16
com.apple.driver.AppleAHCIPort          2.5.1
com.apple.driver.AppleUSBHub          5.5.5
com.apple.driver.AppleFWOHCI          4.9.6
com.apple.iokit.AppleBCM5701Ethernet          3.6.0b1
com.apple.driver.AppleUSBEHCI          5.5.0
com.apple.driver.AppleUSBUHCI          5.2.5
com.apple.driver.AppleEFINVRAM          1.7
com.apple.driver.AppleSmartBatteryManager          161.0.0
com.apple.driver.AppleACPIButtons          1.7
com.apple.driver.AppleRTC          1.5
com.apple.driver.AppleHPET          1.8
com.apple.driver.AppleSMBIOS          1.9
com.apple.driver.AppleACPIEC          1.7
com.apple.driver.AppleAPIC          1.6
com.apple.nke.applicationfirewall          4.0.39
com.apple.security.quarantine          2
com.apple.kext.triggers          1.0
com.apple.driver.IOBluetoothHIDDriver          4.1.3f3
com.apple.driver.AppleMultitouchDriver          235.29
com.apple.iokit.IOSerialFamily          10.0.6
com.apple.iokit.IOFireWireIP          2.2.5
com.apple.iokit.AppleBluetoothHCIControllerUSBTransport          4.1.3f3
com.apple.iokit.IOSurface          86.0.4
com.apple.iokit.IOBluetoothFamily          4.1.3f3
com.apple.driver.DspFuncLib          2.3.7fc4
com.apple.iokit.IOAudioFamily          1.8.9fc11
com.apple.kext.OSvKernDSPLib          1.6
com.apple.driver.AppleSMBusController          1.0.11d0
com.apple.nvidia.nv50hal          8.1.0
com.apple.NVDAResman          8.1.0
com.apple.driver.AppleSMBusPCI          1.0.11d0
com.apple.driver.IOPlatformPluginLegacy          1.0.0
com.apple.driver.IOPlatformPluginFamily          5.3.0d51
com.apple.driver.AppleHDAController          2.3.7fc4
com.apple.iokit.IOHDAFamily          2.3.7fc4
com.apple.driver.AppleGraphicsControl          3.3.0
com.apple.driver.AppleBacklightExpert          1.0.4
com.apple.iokit.IONDRVSupport          2.3.7
com.apple.iokit.IOGraphicsFamily          2.3.7
com.apple.driver.AppleSMC          3.1.4d2
com.apple.driver.AppleUSBHIDKeyboard          170.2
com.apple.driver.AppleHIDKeyboard          170.2
com.apple.iokit.IOSCSIBlockCommandsDevice          3.5.5
com.apple.iokit.IOUSBMassStorageClass          3.5.1
com.apple.iokit.IOSCSIArchitectureModelFamily          3.5.5
com.apple.driver.AppleUSBMultitouch          237.3
com.apple.iokit.IOUSBHIDDriver          5.2.5
com.apple.driver.AppleUSBMergeNub          5.5.5
com.apple.driver.AppleUSBComposite          5.2.5
com.apple.iokit.IO80211Family          522.4
com.apple.iokit.IOAHCIFamily          2.3.1
com.apple.iokit.IOUSBUserClient          5.5.5
com.apple.iokit.IOFireWireFamily          4.5.5
com.apple.iokit.IOEthernetAVBController          1.0.2b1
com.apple.iokit.IONetworkingFamily          3.0
com.apple.iokit.IOUSBFamily          5.5.5
com.apple.driver.AppleEFIRuntime          1.7
com.apple.iokit.IOHIDFamily          1.8.1
com.apple.iokit.IOSMBusFamily          1.1
com.apple.security.sandbox          220.2
com.apple.kext.AppleMatch          1.0.0d1
com.apple.security.TMSafetyNet          7
com.apple.driver.DiskImages          345
com.apple.iokit.IOStorageFamily          1.8
com.apple.driver.AppleKeyStore          28.21
com.apple.driver.AppleACPIPlatform          1.7
com.apple.iokit.IOPCIFamily          2.7.3
com.apple.iokit.IOACPIFamily          1.4
com.apple.kec.corecrypto          1.0
Model: MacBookPro6,2, BootROM MBP61.0057.B0F, 2 processors, Intel Core i7, 2.66 GHz, 8 GB, SMC 1.58f16
Graphics: Intel HD Graphics, Intel HD Graphics, Built-In, 288 MB
Graphics: NVIDIA GeForce GT 330M, NVIDIA GeForce GT 330M, PCIe, 512 MB
Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1067 MHz, 0x802C, 0x31364A53463531323634485A2D3147314431
Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1067 MHz, 0x802C, 0x31364A53463531323634485A2D3147314431
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x93), Broadcom BCM43xx 1.0 (5.106.98.100.16)
Bluetooth: Version 4.1.3f3 11349, 2 service, 18 devices, 1 incoming serial ports
Network Service: Ethernet, Ethernet, en0
Serial ATA Device: M4-CT512M4SSD2, 512.11 GB
Serial ATA Device: WDC WD7500BPKT-00PK4T0, 750.16 GB
USB Device: hub_device, 0x0424 (SMSC), 0x2514, 0xfa100000 / 2
USB Device: hub_device, 0x0424 (SMSC), 0x2514, 0xfa140000 / 6
USB Device: Ext HDD 1021, 0x1058 (Western Digital Technologies, Inc.), 0x1021, 0xfa142000 / 11
USB Device: hub_device, 0x0424 (SMSC), 0x2640, 0xfa141000 / 10
USB Device: iPhone, apple_vendor_id, 0x12a0, 0xfa141300 / 14
USB Device: Ext HDD 1021, 0x1058 (Western Digital Technologies, Inc.), 0x1021, 0xfa141200 / 13
USB Device: Ultra Fast Media Reader, 0x0424 (SMSC), 0x4060, 0xfa141100 / 12
USB Device: Apple Internal Keyboard / Trackpad, apple_vendor_id, 0x0237, 0xfa120000 / 5
USB Device: BRCM2070 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0xfa110000 / 4
USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x8218, 0xfa113000 / 9
USB Device: Internal Memory Card Reader, apple_vendor_id, 0x8403, 0xfa130000 / 3
USB Device: hub_device, 0x0424 (SMSC), 0x2514, 0xfd100000 / 2
USB Device: Keyboard Hub, apple_vendor_id, 0x1006, 0xfd130000 / 4
USB Device: Apple Keyboard, apple_vendor_id, 0x0250, 0xfd132000 / 5
USB Device: IR Receiver, apple_vendor_id, 0x8242, 0xfd120000 / 3

Until a knowledgeable user comes along who can read kernel panic logs, search for a solution from the following links:
OS X: About kernel panics
User Tip: Kernel Panics? Don't panic too!
How to troubleshoot a kernel panic
MacBook, Mac OS X (10.6)
Use Software Update or the OS 10.6.8 combo update to update your OS. Also, update everything SU has to offer for your computer as well as your USB connected devices. When done, repair permissions and restart your computer.

Kernel_task eating up my cpu

Hello, i have a mid-2009 MBP 2.26 GHz running lion. I've been having a problem with my kernel_task since about a month. Here's how it looks:
As you can see my kernel_task is eating up my cpu (over 80%) creating a very bad lag.
I've tried everything to fix it and nothing worked(resetting my pram and smc, reinstalling mac osx lion...).
Also, you might wanna note that when i run my MBP in safe mode kernel_task drops to less than 3% and my computer runs smoothly.
Any anwser would be apreciated, thanks

Please read this whole message before doing anything.
This procedure is a diagnostic test. It won’t solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.
Third-party system modifications are a common cause of usability problems. By a “system modification,” I mean software that affects the operation of other software – potentially for the worse. The following procedure will help identify which such modifications you've installed. Don’t be alarmed by the complexity of these instructions – they’re easy to carry out and won’t change anything on your Mac.
These steps are to be taken while booted in “normal” mode, not in safe mode. If you’re now running in safe mode, reboot as usual before continuing.
Below are instructions to enter some UNIX shell commands. The commands are harmless, but they must be entered exactly as given in order to work. If you have doubts about the safety of the procedure suggested here, search this site for other discussions in which it’s been followed without any report of ill effects.
Some of the commands will line-wrap or scroll in your browser, but each one is really just a single line, all of which must be selected. You can accomplish this easily by triple-clicking anywhere in the line. The whole line will highlight, and you can then either copy or drag it. The headings “Step 1” and so on are not part of the commands.
Note: If you have more than one user account, Step 2 must be taken as an administrator. Ordinarily that would be the user created automatically when you booted the system for the first time. The other steps should be taken as the user who has the problem, if different. Most personal Macs have only one user, and in that case this paragraph doesn’t apply.
Launch the Terminal application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ If you’re running Mac OS X 10.7 or later, open LaunchPad. Click Utilities, then Terminal in the page that opens.
When you launch Terminal, a text window will open with a line already in it, ending either in a dollar sign (“$”) or a percent sign (“%”). If you get the percent sign, enter “sh” (without the quotes) and press return. You should then get a new line ending in a dollar sign.
Step 1
Copy or drag – do not type – the line below into the Terminal window, then press return:
kextstat -kl | awk '!/com\.apple/{printf "%s %s\n", $6, $7}'
Post the lines of output (if any) that appear below what you just entered (the text, please, not a screenshot.)
Step 2
Repeat with this line:
sudo launchctl list | sed 1d | awk '!/0x|com\.(apple|openssh|vix)|edu\.mit|org\.(amavis|apache|cups|isc|ntp|postfix|x)/{print $3}'
This time, you'll be prompted for your login password, which won't be displayed when you type it. You may get a one-time warning not to screw up. You don't need to post the warning.
Step 3
launchctl list | sed 1d | awk '!/0x|com\.apple|edu\.mit|org\.(x|openbsd)/{print $3}'
Step 4
ls -1A /e*/mach* {,/}L*/{Ad,Compon,Ex,Fram,In,Keyb,La,Mail/Bu,P*P,Priv,Qu,Scripti,Servi,Spo,Sta}* L*/Fonts 2> /dev/null
Important: If you synchronize with a MobileMe account, your me.com email address may appear in the output of the above command. If so, anonymize it before posting.
Step 5
osascript -e 'tell application "System Events" to get name of every login item' 2> /dev/null
Remember, steps 1-5 are all drag-and-drop or copy-and-paste, whichever you prefer – no typing, except your password. Also remember to post the output.
You can then quit Terminal.

Has there been a fix for the dreaded kernel_task eating up all CPU problem yet???

Since I bought this pile of garbage in 2011 and went overseas I've been struggling with it. This kernel_task issue is completely insane and a lot of pepole experience it as well, so has Apple released a fix or has anyone figured out a proper way to get rid of it?

I have this same issue on my iMac after an upgrade. My girlfriend's iMac (same model) was unaffected. So the problem seems to affect random machines of all ages and types. I have a solution but not a fun one.
@ScottC75 : The CPU percentage shows what % of an individual core is being used. If you have a multi-core chip (which most Macs do) this can go above 100%
I've read *a lot* of forums on this kernel_task problem with people spouting quite a lot of rubbish.
I first tried everything listed on forums: reinstalling OS X, removing kexts (that apparently stop your computer from overheating), new RAM, tidying up the computer. None of it worked.
One guy said he took three trips to the Apple Store, having his MBP sent off each time; eventually they gave him a brand new MBP of the latest spec. That might be the option for you but I didn't want to be without my computer for that time.
Finally, I did a complete wipe of my Mac. If you boot using the backup partition, or using a USB with an OS X Install on it, the option to 'reinstall' or 'install a new OS X' does not wipe your computer. Once it has finished, you will have all your files and applications still. This did not fix my computer. Instead, you must use Disk Utility first to wipe you Macintosh HD partition and then install. Then you Mac acts like it's brand new. Only this fixed the problem. The massive downside is that I had to backup everything and reinstall all my apps.
This is a drastic measure, and you run the risk of forgetting to backup all the stuff you want. It did work though and was ultimately quicker than going to the Apple Store (even if I might have got a new computer out of it).
In summary, to fix this problem:
1. I backed up all my files onto an external hard drive!
2. I booted up to the recovery screen (Command + R or hold the option key at bootup)
2. In Disk Utility, I 'erased' my 'Macintosh HD' partition
4. Back on the main recovery screen, I chose to (Re)install OS X.

P35 - CPU fan reset when resumed from sleep

Hi,
I just got S3 sleep to work where it turns off all fans. The problem is that when it resumes from sleep, the CPU fan spins a lot faster than from boot. I've set it to run at 12,5 % as long as temps are under 65c. I'm guessing it runs at about 50 % when resuming from sleep. It does this until I restart the computer.
Tips?
/Edit; Just checked with SpeedFan, CPU fan normally runs at 1100 RPM, but after resume it runs at 1800 RPM. Any utility I can use that resets this to 1100 after resume?

I ended up disabling fan control in BIOS, so that SpeedFan would work in OS. This means that CPU fan runs at 100 % until OS and SpeedFan har loaded up. Tips to fix this through BIOS or whatever are welcome.

High cpu usage when idle / x230

Hi all,
I have an i5 x230, win8 pro installed on a crucial m4 msata ssd, 16gb of ram. I lately noticed a sharp drop in battery life. I believe this is due by high cpu utilization when idle, which I see from task manager, and shows the System process hovering above 30% cpu utilization. This goes down when I restart, but comes up again after a while, possibly when coming back from sleep.
Does anyone have any idea about this? I tried to search the knowledge base a bit, but nothing came up.
Thanks!
Solved!
Go to Solution.

Indeed it was risdxc64.sys; I used process explorer to find out. I uninstalled the win 8 driver, and installed back the win 7 driver, and CPU usage is normalized.
Thanks for pointing in the right direction!

Kernel_task high cpu usage when using external monitor at 1080p

Specs
Model Name:          MacBook Pro
Model Identifier:          MacBookPro6,2
Processor Name:          Intel Core i7
Processor Speed:          2.66 GHz
Number Of Processors:          1
Total Number Of Cores:          2
L2 Cache (per core):          256 KB
L3 Cache:          4 MB
Memory:          4 GB
Processor Interconnect Speed:          4.8 GT/s
Boot ROM Version:          MBP61.0057.B0C
SMC Version (system):          1.58f15
My external display is a Samsung PX2370 connected to my MBP using an HDMI cable with a HDMI-to-miniDP adapter
I first noticed this after the last EFI update several months back. At first I thought kernel_task eats up too much cpu cycles whenever an external display is attached, but it turns out this only happens when the external display is set to 1080p. When external display is set to 720p, kernel_task is pretty much normal (~5% cpu usage) but rises up to ~150% cpu usage once the external display is set to 1080p.
kernel_task cpu usage is also with normal range when my MBP is connected to a Samsung LCD TV at 720p.
Anyone having the same problem or know of any fix/workarounds?

Seems like the problem persists when playing a 720p video on the external display set to 720p. To sum it up
Video Resolution
Main Display
External (1280x720)
External (1920x1080)
480p
ok
fluctuating kernel_task cpu usage (~5 to ~150 cpu usage)
high kernel_task cpu usage
720p
ok
high kernel_task cpu usage
high kernel_task cpu usage
1080p
ok
high kernel_task cpu usage
high kernel_task cpu usage

Non interactive zlogin eats up all CPU on Solaris 10 u4

Hi,
We are having trouble with a zlogin command that is started via a script from inittab on a Solaris 10 u4 system.
When a zlogin command is started from the script this zlogin will within 10-15 seconds start spinning and consume 97-98% of the CPU. The zlogin command never ends, and the startup is stuck there.
Running a pstat during the zlogin shows the following picture:
PID USERNAME SIZE   RSS STATE PRI NICE      TIME CPU PROCESS/NLWP
1912 root     6576K 3560K run    100    -   0:22:30 97% zlogin/1
1489 root     3544K 3184K cpu0   100    -   0:00:15 0.9% prstat/1
   159 root     3880K 3080K sleep 100    -   0:00:04 0.3% picld/11
ZONEID    NPROC SWAP   RSS MEMORY      TIME CPU ZONE
     0       89 509M 548M    27%   0:23:07 100% global
     1       22   26M   40M   1.9%   0:00:05 0.0% zone01
Total: 111 processes, 362 lwps, load averages: 4.25, 4.23, 3.49A ptree of the zlogin command
# ptree 1912
993   /sbin/sh /opt/sz/sysadmin/bin/set_remote_status.sh -b
1912 zlogin -l root zone01 svcs -a |grep svc:/milestone/multi-user-server:def
    1913 sh -c svcs -a |grep svc:/milestone/multi-user-server:default
      1919 grep svc:/milestone/multi-user-server:default
        1920 svcs -aA truss of the zlogin shows that it is spinning in a poll/fstat loop.
# truss -p 1912
pollsys(0xFFBFE6E0, 3, 0x00000000, 0x00000000) = 1
fstat(4, 0xFFBFC5F8)                            = 0
pollsys(0xFFBFE6E0, 3, 0x00000000, 0x00000000) = 1
fstat(4, 0xFFBFC5F8)                            = 0
pollsys(0xFFBFE6E0, 3, 0x00000000, 0x00000000) = 1
fstat(4, 0xFFBFC5F8)                        = 0
    Received signal #18, SIGCLD [caught]
      siginfo: SIGCLD CLD_EXITED pid=1913 status=0x0000
lwp_sigmask(SIG_SETMASK, 0x00020000, 0x00000000) = 0xFFBFFEFF [0x0000FFFF]
waitid(P_PID, 1913, 0xFFBFBC38, WEXITED|WTRAPPED|WNOHANG|WNOWAIT) = 0
setcontext(0xFFBFBC20)
pollsys(0xFFBFE6E0, 2, 0xFFBFC678, 0x00000000) = 1
read(5, " o f f l i n e          ".., 8192)     = 65
write(1, " o f f l i n e          ".., 65)      = 65
pollsys(0xFFBFE6E0, 2, 0xFFBFC678, 0x00000000) = 0
waitid(P_PID, 1913, 0xFFBFE618, WEXITED|WTRAPPED) = 0
_exit(0)When running the process under truss the zlogin runs to end, probably because the child processes now get time for doing their work.
A pstack of the zlogin process shows something similar
# pstack 1912
1912:   zlogin -l root zone01 svcs -a |grep svc:/milestone/multi-user-server:de
ff2465c8 __pollsys (ffbfe6e0, 3, 0, 0, 0, 0) + 8
ff1e1b34 poll     (ffbfe6e0, 3, ffffffff, 0, 0, 0) + 7c
000128b4 ???????? (3, 4, 5, 7, 1, 126400)
00013c30 ???????? (ffbff47b, 12400, ffbff476, 127450, 1428f8, 2)
00014460 main     (4, 1, 1428f8, 15400, 15400, 0) + 728
00011a24 _start   (0, 0, 0, 0, 0, 0) + 108A pfiles out the zlogin show the following:
# pfiles 1912
1912:   zlogin -l root zone01 svcs -a |grep svc:/milestone/multi-user-server:de
Current rlimit: 256 file descriptors
   0: S_IFREG mode:0555 dev:85,10 ino:47996 uid:0 gid:0 size:64656
      O_RDONLY|O_LARGEFILE
      /opt/sz/sysadmin/bin/set_remote_status.sh
   1: S_IFIFO mode:0000 dev:308,0 ino:1377 uid:0 gid:0 size:0
      O_RDWR
   3: S_IFIFO mode:0000 dev:308,0 ino:1378 uid:0 gid:0 size:0
      O_RDWR
   4: S_IFIFO mode:0000 dev:308,0 ino:1378 uid:0 gid:0 size:8192
      O_RDWR
   5: S_IFIFO mode:0000 dev:308,0 ino:1379 uid:0 gid:0 size:0
      O_RDWR
   6: S_IFIFO mode:0000 dev:308,0 ino:1379 uid:0 gid:0 size:0
      O_RDWR
   7: S_IFIFO mode:0000 dev:308,0 ino:1380 uid:0 gid:0 size:0
      O_RDWR
   8: S_IFIFO mode:0000 dev:308,0 ino:1380 uid:0 gid:0 size:0
      O_RDWRSo do anybody know a workaround for this behavior, or any other clues?

Found the reason. The default scheduling class was set to RT. Probably explained why zlogin was allowed to eat up all CPU resources

Photobooth is eating 75% of cpu and the whole app drags...

I have trashed the plist etc,
and still nothing.
When I open the app it eats about 15% cpu according to activity monitor, but as soon as I select the effects button #1 , the cpu just goes to the ceiling.
I trashed the plist, I created a new user, and it acts the same way.
I do notice that it drags and slows down when i select the "#1" set of effects,
"#2" set of effects still work fine, and the app doesnt slow down or become unresponsice like it does when effects number 1 is chosen.
Interesting that I am on a G5 and there still hasn't been an official update for photobooth , but there has been for Intel users. So, I got two problems now with photobooth , the pop art effect is still broke, and now the app is becoming completely useless.
oh well...

"I trashed the plist, I created a new user, *and it acts the same way*."
It's possible somehow the app is corrupted and/or something is conflicting with it. A couple of things to try to weed out the problem.
*Except for the keyboard & mouse, disconnect all devices/peripherals from your computer.*
#1 - Repair disk/permissions from your Tiger System Install DVD.
#2 - Open Library>Startup items folder-the root level Library, not the one in your user name folder.
Look for potentially problematic 3rd party items such as virus scanning software components, etc. Remove 1 or more items to a location outside the Library folder, such as the Desktop, then restart normally & see if Photobooth is still hogging up the CPU. It it does, try removing all the items in the Startup items folder & restart. If all’s now well, place the items back into the Startup items folder 1 by 1, restarting each time you put one back. If and/or when the issue resurfaces, you just identified the faulty component.
If the above does not work, then it’s time to move on to.................
WARNING-This step can be tedious-removing .plist files from the /Library/Preferences folder.
Remove the entire Preferences folder from the Library folder on your startup drive then place the files back 1 by 1 until you see the problem return. *The Mac will automatically create a new Preferences folder in the Library folder*
Alternatively, you can take half of the items out (all non-Apple .plist file, for example), restart to see if Photobooth is still having issues, then move to a smaller set of items, repeating the process until the culprit is found.
Or you can use Preferential Treatment which is a FREE utility that does all the work for you.
#3 - Archive & Install
http://docs.info.apple.com/article.html?artnum=301270 Scroll down to "Archive and Install”
#4 - Re-install Photobooth. It should be in the Bundled Software folder in the Tiger System Install DVD.
====================
"the pop art effect is still broke,"
The only solution for your model iMac is to download the Russian fix. It works. I have it & now am a happy camper. The Russian cure will update Photobooth to v1.2.
http://www.firblitz.com/2006/12/10/photo-booth-broken
Regarding your comments:
+"This "little" russian fix, created a much more larger problem dealing with the software update program and how it distinguishes whether you have the current updates for your apple software.+
+So using the 1.2 russian update has made things worse for people with non-russian imacs."+
I hope you are aware that *not everyone* suffered from this +Russian glitch.+ If it happens to you, then I suggest that you search the web for a cure and/or contact Apple. Just make sure you repair permissions & restart after the installation if you decide to take the Russian route.
Good luck!

Adl.exe eating up 100% CPU (CS5, Windows)

Hi,
In Flash Professional CS5 on Windows 7 (64bit), whenever I test a movie (ctrl+enter) targeted at AIR, the adl.exe process starts eating up 100% of the cpu at intervals, that is:
- adl.exe eats up 100% of the cpu for several seconds
- then back to normal for several seconds
- then eats up 100% of the CPU again for several seconds
and so on.
I see it in the task manager that the process eating up all CPU is adl.exe; obviously the application being tested (and the whole computer) becomes almost unresponsive on CPU peaks.
If I publish the very same test app as an air package, install and run it, it runs fine, with near to 0% cpu consumption, which is normal.
The raise in CPU consumption does not coincide with anything significant happening, it seems just a random (though almost regular in intervals) oscillation, with no apparent cause.
My swf is not very cpu greedy, it is almost idle. I do ctrl+enter and then don't touch anything, just leave it running (which does almost nothing) and the CPU usage goes up and down. I repeat, this does NOT happen if I publish, install and run the AIR application without the ADL debug launcher.
Has anybody run into the same problem?
Is there any fix?
thanks
m.

Hi ,
Would you mind help me with following questions :
1. What is your AIR version? Could you please have a try on our latest AIR build(http://get.adobe.com/air/?promoid=BUIGQ)
2. In Which running mode you encounter this performance issue? In an IDE , or installing it? According to the prior post, matteosistisette met this issue when running it on Flash CS5 with ctrl+enter NOT by installing it after packaging it as an AIR file
3. I tried with winxp on some machines (such as; dell OPTIPLEX 760 and laptop thinkpad :T400) , using adl to launch it .
   Set it to the front application ,and do nothing, the cpu is 20% - 23%
   Minimize the application, and the cup is 0% – 2%
   Do some operations on the app , it is 30% - 70%
   So have you tried on other machines, such as : winxp on PC instead of na Imac, ,and what's the CPU usage? and relevant PC processor and memory info
4.A little confused about the following info you mentioned:
"I speak of the screen following
the name entry, once all transitions have finished and the puzzle has
exploded it's pieces and the main menu is simply sitting idle"
that the main menu sit idle is the expected result/designed by your app, right?
thanks
Alisa

Npviewer.bin (on linux) eats lots of CPU and doesn't even close when firefox is closed.

npviewer.bin (on linux) eats lots of CPU and doesn't even close when firefox is closed.

I've begun having this problem as well. Reviewing the above, I seen no errors that I' making. A few weeks ago, without being aware of an update to Firefox, it began behaving differently than it has for years. I've always had it set to open to an empty tab, now it often opens to the 'Firefox Home Page' (which I've never used)... this despite resetting my opening page to "Show my windows and tabs from last time" (upon troubleshooting the 'home page issue' I found that the opening page had reset to FF Home somehow. I store a lot of pages in tab groups and having them disappear is a major bummer since they're news articles I'm waiting to copy.
Also... I run CCleaner weekly and I know that will erase the group tabs I've stored so before running it I have to store those URL's another way. Does anyone know what I can uncheck in CCleaner to keep those tabs?
Thanks.

When router reconnects, Mail locks up, eats memory and CPU

This is something that happens to me since I upgraded to Leopard.
When my router reconnects, i.e. gets a new IP addresse (and maybe the Internet is unreachable for some seconds), Mail starts to go crazy. The spinning circle behind the IMAP mailboxes never go away, and Mail starts to swallow the whole memory and CPU, until the system dies because of being completely unresponsive.
Has anyone encountered the same problem? Is there something I can do to find out what's wrong here?

It would be interesting to see Mail swallow all the memory and the CPU on a computer, but that's not what's happening.
Do you have Mail set to launch when you startup your Mac, or do you launch it yourself when you startup your Mac? Either way, if you do that before your router has an IP address and a connection, that could cause a problem, so the first thing you should try is to not do that.
Secondly, have you tried repairing permissions, since you upgraded to 10.5.4? If not, do that as well and then restart your Mac, wait for your router to be connected and ready, then try opening Mail.
Mulder

High CPU usage when running on battery power

Hi all,
Since a a few weeks, my MBP mod A1278 with the i5 CPU, is extremely slow when not plugged in.
The Activity Monitor shows that a kernel_task is consuming 274% CPU and is using 64 threads.
As soon as I hookup the power adapter, the kernel_task activity falls back to around 3% and everything is all good.
Anyone with a solution? Should I replace the battery?
BTW I completely reinstalled the MBP and I have a clean system.
Thanks.
Patries,

Click Apple icon on the Menubar.
From the dropdown click About This Mac.
Click More Info.
From the popup window select System Report and click Power on the side bar.
It will show the health of the battery.
Proceed from there.
Best.

Reduce CPU Usage when Runnig Telnet on Win2000

Does any one knows how to reduce CPU usage when iam running my telnet developed using java classes.Every time when i start Telnet CPU usage is shooting to 100%.Can any one help to me solve my problem.

You are probably doing some kind of loop that is eating all the CPU idle time. You could reduce your use of the CPU by calling Thread.yield() when you do not need to do anything for a bit, or even better, Thread.sleep(...) to pause your program for a specified number of milliseconds.
Hope this helps some.

High CPU usage when downloading Files

Hi there,
i noticed somethign strage when I download file off the internet or intranet. As soon as my download speed surpasses 1MB/s the CPU usage increases. To be exact the process kernel_task.
For example:
2,5 MB/s -> ~30%
10 MB/s -> ~60-70%
10+ MB/s -> ~80%
This is really annoying and I have now clue how to fix this. The Harddrive is a SAMSUNG HM320JI with a Journaled HFS+ partition. No Virus Scanner or anything. Also just reinstalled Snow Leopard yesterday.
Hope someone can give me some useful information how to fix this.

Hiya,
could it have something to do with the write speed/ cache/ram? On a "slow" disk, or one that is nearly full or one that is partitioned, it will take a great deal more ram and cache to "digest" the faster download and write it onto disk. I tend to do downloads to a separate drive. Have you got one? and can you repeat the high CPU usage when downloading / saving to the external drive? I note your drive might have 5,400 rpm, with "just" 8mB cache and 320 GB (quite a few SATA's have 7,200 rpm and 32 mB cache).
NB: If anything, I found SL more efficient, especially on my 4 year old Macbook, which is running much faster and has got more responsive after installation of (full version of) SL.
Message was edited by: Alexandre

10.4.7 kernel_task eats 70% of CPU only when computer wakes from sleep.

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