Firefox using 100% cpu

I'm running firefox 11 on Win 7 Ultimate. For the last 2 weeks it is pegging out the cpu at 100% and this is with 3 tabs open. I close it and check the task manager it stays open. I have to end the process. I then reopen and all is good. It will work for a while but flash constantly crashes in youtube (not saying that is a firefox problem) but I don't get this cpu usage. Using 600 MB RAM and 100% cpu with 3 tab...come on now. So, any ideas what is going on?

Hi laytoncy,
Have you looked at our [https://support.mozilla.org/en-US/kb/firefox-slow-or-takes-too-long-start performance troubleshooting section]? There is a lot of good information in there that should help.
Hopefully this helps!

Similar Messages

Firefox use 100% of one CPU (Mac)

I use last firefox (32) on MacOS X 10.6.8.
Sometime firefox start using 100% a one CPU, from that time the only way to stop it was to quit (it take severals seconds, sometime it hang). When it start i can close all windows, firefox continue using 100% CPU.
I follow standard instructions (update to lastest, disable plugins and extensions...) it do not work.
I not a configuration to reproduce the problem : keep iCloud mail open in one tab is the way to reproduce the problem sometime after a few minutes, sometime after some hours : but it also happend sometime with no iCloud open...
Paramètres de base de l'application
Nom: Firefox
Version: 32.0.3
Agent utilisateur: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:32.0) Gecko/20100101 Firefox/32.0
Rapports de plantage des 3 derniers jours
Tous les rapports de plantage
Extensions
Nom: Firebug
Version: 2.0.4
Activée: true
ID: [email protected]
Nom: Adblock Plus
Version: 2.6.5
Activée: false
ID: {d10d0bf8-f5b5-c8b4-a8b2-2b9879e08c5d}
Nom: Copy Plain Text 2
Version: 1.3.2
Activée: false
ID: [email protected]
Nom: DuckDuckGo Plus
Version: 0.4.2
Activée: false
ID: jid1-ZAdIEUB7XOzOJw@jetpack
Nom: Lightbeam
Version: 1.0.10.2
Activée: false
ID: jid1-F9UJ2thwoAm5gQ@jetpack
Nom: Readability
Version: 2.4
Activée: false
ID: {6005d9b1-d115-485a-a92a-3f6453ca3fe2}
Accélération graphique
Fenêtres avec accélération graphique: 1/1 OpenGL (OMTC)
ID du périphérique: 0x9583
ID du vendeur: 0x1002
Rendu WebGL: ATI Technologies Inc. -- ATI Radeon HD 2600 PRO OpenGL Engine
windowLayerManagerRemote: true
AzureCanvasBackend: quartz
AzureContentBackend: quartz
AzureFallbackCanvasBackend: none
AzureSkiaAccelerated: 0
Préférences modifiées importantes
accessibility.typeaheadfind.flashBar: 0
browser.cache.disk.capacity: 358400
browser.cache.disk.smart_size_cached_value: 358400
browser.cache.disk.smart_size.first_run: false
browser.cache.disk.smart_size.use_old_max: false
browser.cache.frecency_experiment: 3
browser.history_expire_days.mirror: 180
browser.places.importBookmarksHTML: false
browser.places.smartBookmarksVersion: 7
browser.search.useDBForOrder: true
browser.sessionstore.upgradeBackup.latestBuildID: 20140923175406
browser.startup.homepage: about:newtab|http://www.charentelibre.fr/charente/pays-de-cognac/|http://www.sudouest.fr/charente/cognac/|https://www.ic
browser.startup.homepage_override.buildID: 20140923175406
browser.startup.homepage_override.mstone: 32.0.3
dom.mozApps.used: true
dom.w3c_touch_events.expose: false
extensions.lastAppVersion: 32.0.3
font.internaluseonly.changed: false
font.size.fixed.x-western: 12
font.size.variable.x-western: 14
gfx.blacklist.direct2d: 3
gfx.blacklist.layers.direct3d9: 3
gfx.blacklist.webgl.msaa: 4
network.cookie.prefsMigrated: true
places.database.lastMaintenance: 1414486056
places.history.expiration.transient_current_max_pages: 104858
places.last_vacuum: 1341938581
plugin.disable_full_page_plugin_for_types: application/pdf
plugin.importedState: true
plugin.state.adobepdfviewernpapi: 0
plugin.state.divxbrowserplugin: 0
plugin.state.flash: 1
plugin.state.flip4mac wmv plugin: 0
plugin.state.google earth web plug-in: 1
plugin.state.iphotophotocast: 1
plugin.state.silverlight: 0
print.macosx.pagesetup-2: PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTgiPz4KPCFET0NUWVBFIHBsaXN0IFBVQkxJQyAiLS8vQXBwbGUvL0RURCBQTElTVCAxLjAvL0VO
print.print_bgcolor: false
print.print_bgimages: false
print.print_colorspace:
print.print_command:
print.print_downloadfonts: true
print.print_duplex: 0
print.print_evenpages: true
print.print_in_color: true
print.print_margin_bottom: 0.5
print.print_margin_left: 0.5
print.print_margin_right: 0.5
print.print_margin_top: 0.5
print.print_oddpages: true
print.print_orientation: 0
print.print_page_delay: 50
print.print_pagedelay: 500
print.print_paper_data: 0
print.print_paper_height: 11.00
print.print_paper_name:
print.print_paper_size: 0
print.print_paper_size_type: 1
print.print_paper_size_unit: 0
print.print_paper_width: 8.50
print.print_plex_name:
print.print_printer:
print.print_resolution: 0
print.print_resolution_name:
print.print_reversed: false
print.print_scaling: 1.00
print.print_shrink_to_fit: true
print.print_to_file: false
print.print_unwriteable_margin_bottom: 17
print.print_unwriteable_margin_left: 19
print.print_unwriteable_margin_right: 18
print.print_unwriteable_margin_top: 17
privacy.donottrackheader.enabled: true
privacy.sanitize.migrateFx3Prefs: true
security.warn_viewing_mixed: false
storage.vacuum.last.index: 1
storage.vacuum.last.places.sqlite: 1413879484
JavaScript
Ramasse-miettes incrémentiel: true
Accessibilité
Activée: false
Empêcher l'accessibilité: 0
Versions des bibliothèques
NSPR
Version minimale attendue: 4.10.6
Version utilisée: 4.10.6
NSS
Version minimale attendue: 3.16.5 Basic ECC
Version utilisée: 3.16.5 Basic ECC
NSSSMIME
Version minimale attendue: 3.16.5 Basic ECC
Version utilisée: 3.16.5 Basic ECC
NSSSSL
Version minimale attendue: 3.16.5 Basic ECC
Version utilisée: 3.16.5 Basic ECC
NSSUTIL
Version minimale attendue: 3.16.5
Version utilisée: 3.16.5
Fonctionnalités expérimentales
------------------------------

It doesn't help, has i said : i allready do standard procédure to help (what you point) : update to lastest, disable extension or theme (i do not use), disable plug-ins... nothing helps, the bug is still there.

ITunes will uses 100% cpu and will not close in OSX Lion

When I start up iTunes, after a few minutes, the fan kicks on and Activity Monitor shows that it is using 100% CPU. The fan kicks up and the MBP gets warm. I have to force close to get it to shut down. iTunes match is constantly running, so maybe that has something to do with it?
I'm not running it in Mini Player mode or anything like that, so I'm not sure what's causing the problem. Any thoughts on how to diagnose it?

I also have this problem which has been getting worse with recent successive updates of Firefox. As a long-time user and advocate, I am about ready to look for an alternative browser. Firefox will not close and exit properly, requiring direct cancellation through Task Manager; starts up very slowly (often 1 to 2 minutes); and frequently locks up the CPU with 100% of cycles while doing NOTHING; offers to restart crashed sessions, but cannot recover and reload those sessions; will not operate correctly while any other application accesses the internet, like uTorrent. Firefox is set to delete cookies, etc. whenever the session closes, sqlite database is vacuumed regularly, CCleaner regularly wipes remaining accretions, and disk is defragged. Currently running 3.5.5 but will NOT upgrade until this problem is solved since later builds report the same problems. I know several other users who have experienced the same problem and I can no longer automatically recommend Firefox to users and clients. Is anybody paying any attention to this problem? What is being done to address this fault? Why is there no response to the original poster? Is this really a support forum or just a way to preoccupy and distract the users who suffer this malfunction? Wireless 54Mbps connection. No Adobe Flash, QuickTime, MS Silverlight, etc. installed on this machine. Firefox 3.5.5 with the following add-ons:
Aardvark 3.0
Adblock Plus 1.2.1
Adblock Plus: Element Hiding Helper 1.0.6
Free Download Manager plugin 1.3.4
Highlighter 0.1.4
MR Tech Toolkit 6.0.4
repagination 2006.4.5.1
Save Complete 1.0.1
Session Manager 0.6.8.3
Tab Mix Plus 0.3.8.4
Unhide Passwords 1.2.5.1
User Agent Switcher 0.7.2
Thanks for any help or suggestions.

Internet browsing uses 100% cpu

Hello everybody.
This situation has driven me crazy the last 4 months and till now i have not figure it out.
Everytime i have a video streaming in my computer, CPU usage goes to 100%. It happens every time, either using internet explorer or Firefox or Google chrome. Even when i have a skype video call or a gtalk video call. Some description of each one:
Using internet explorer: While i am watching a youtube video, CPU limits up to 100% after 1 minute or sometime 5 minutes. I am not able to watch a 15min video. Internet explorer process uses 100%CPU. When i kill it via task manager, another instance of IE
appears with the same CPU usage. I also kill it and then 4 or 5 instances of rundll32.exe appear consuming 100CPU. If i kill them, explorer.exe uses 100% of cpu. If i do nothing and just wait, CPU is 100% for two hours. If i just kill only IE instances, taskmngr.exe
is consuming 40-50% of CPU for 1-2 minutes, then other processes like conhost or csrss consumes the same amount of CPU and after 4-5 minutes everything comes back to normal. That's the story everytime i use IE 11.0.9600.16518
Using Firefox: While video streaming, flash player process consumes all CPU. When i kill it, the same behaviour described above occurs.
Using Google Chrome: When i run it, 5-6 instances of google chrome appear in task manager and after some time this browser also hungs with 100CPU.
All above are also happening while i run Skype either i have a video call or just text messaging. Sometimes svchost is 25-30 % and system hungs.
Operating system is Windows 7 home premium 64bit with SP1, my graphics card is NVidia Gforce GT 230M (latest drivers 20% when these situations occur, my system is extremely slow and whatever i do, it limits up CPU usage.
Any assistance is acceptable. Thanks for the patience.

Hi,
First, I would suggest that you reduce the hardware acceleration on the computer and check if it helps.
a. Open Screen Resolution by clicking the Start button, clicking Control Panel, and then, under Appearance and Personalization, clicking Adjust screen resolution.
b. Click Advanced Settings, click the Troubleshoot tab, and then click Change settings.
c. Note that some video card drivers do not permit you to change settings.
d. Move the Hardware acceleration slider toward None to reduce or turn off video hardware acceleration.
This issue can be caused by confliction from one of the background programs or add-ons.
You may use Process explorer as Milos mentioned to find the root cause to fix the issue:
Process explorer:
http://technet.microsoft.com/en-us/sysinternals/bb896653.aspx
You can follow the references below to troubleshoot the issue:
1. 3RD part app: Remove to check the issue
2. Drivers: Update or install compatible version
3. System process/service: Upload the log file for analyzing.
I also would like to suggest you use Windows Performance Recorder to check the issue:
Troubleshooting Windows Performance Issues Using the Windows Performance Recorder
http://blogs.technet.com/b/askpfeplat/archive/2013/03/22/troubleshooting-windows-performance-issues-using-the-windows-performance-recorder.aspx
To diagnose HDD and RAM, I would like to suggest you contact your computer vender.
Hope it helps.
Regards,
Blair Deng
Blair Deng
TechNet Community Support

Firefox uses all CPU resources when loading pages with lots of images.

I just installed XP, and when I load pages with a ton of images, say, tumblr, Firefox uses ALL CPU time until it finishes loading.
But because of the slowdown, it takes forever to download all the images.
It's not related to my connection, I've got 15mbit downstream.
I have Win7 on a different partition, and I have never had this problem.
As far as I know, all my drivers and XP are up to date.
I could have an old driver lurking, should I be looking at something specific?
I've tried to find something on Google, but I've not found anything really helpful...

I haven't gotten around to installing antivirus (or anything else, for that matter).
If I watch in Task Manager, Firefox.exe goes to 100% as soon as I load the page.
And no, that guide didn't help much. I don't have any addons or plugins yet, this is a new install.
I got a huge slowdown a bit ago, it's because it was using almost 1.5GB of RAM o_o

Discoveryd process uses 100% CPU - Safari Can't find the server

Hello
Since upgrading to Yosemite, I lose connection to the internet 2 or 3 times a day. (Outlook goes offline at the same time)
This is with a wired connection. (Wi-Fi is turned off)
Safari gives me the "Safari Can't Find the Server" message.
Restarting the computer solves the issue temporarily.
While I'm unable to connect to the internet, Activity Monitor shows a process named "discoveryd" that uses 100% CPU.
Force quitting this process gives me back access to the internet instantly. Unfortunately, I suffered a kernel panic (auto restart) a few minutes after force quitting discoveryd. I'm not 100% sure those 2 are related but it would be an odd coincidence as I never experienced had a single kernel on that system. Haven't tried force quitting that process since.
I'm using this iMac in a work environment. (Connected to a windows file server and exchange)
This issue has been happening 2-3 times a day since the day I upgraded to Yosemite.
Any pointers on what could fix this issue ?
Thanks

Start time: 10:04:31 11/11/14
Model Identifier: iMac11,3
System Version: OS X 10.10 (14A389)
Kernel Version: Darwin 14.0.0
Time since boot: 1:39
SATA
   WDC WD1001FALS-40Y6A0
USB
   USB-PS/2 Optical Mouse (Logitech Inc.)
Diagnostic reports
   2014-10-30 Adobe InDesign CC 2014 hang
   2014-10-30 Adobe InDesign CS6 hang
   2014-10-30 Adobe InDesign CS6 crash
   2014-10-30 FileMaker Pro hang x5
   2014-10-30 Finder crash* x2
   2014-10-30 Finder hang
   2014-10-30 Microsoft Outlook hang
   2014-10-30 iTunes hang
   2014-10-31 Adobe InDesign CC 2014 hang
   2014-11-04 Adobe InDesign CC 2014 crash x2
   2014-11-04 Adobe InDesign CC 2014 hang
   2014-11-04 Adobe InDesign CS6 crash x2
   2014-11-04 Microsoft Excel hang
   2014-11-05 Adobe InDesign CS6 hang
   2014-11-05 FileMaker Pro hang
   2014-11-10 Adobe InDesign CC 2014 hang
   2014-11-10 FileMaker Pro hang
   2014-11-11 Adobe Illustrator hang
    * Code injection
Log
   Nov 5 08:25:33 ** GPU Hardware VM is disabled (multispace: disabled, page table updates with DMA: disabled)
   Nov 5 10:07:01 process discoveryd[49] thread 1190 caught burning CPU! It used more than 50% CPU (Actual recent usage: 82%) over 180 seconds. thread lifetime cpu usage 91.907001 seconds, (77.250009 user, 14.656992 system) ledger info: balance: 90001960650 credit: 91780798965 debit: 1778838315 limit: 90000000000 (50%) period: 180000000000 time since last refill (ns): 109240779280
   Nov 5 10:09:03 ** GPU Hardware VM is disabled (multispace: disabled, page table updates with DMA: disabled)
   Nov 5 11:46:47 process discoveryd[49] thread 1256 caught burning CPU! It used more than 50% CPU (Actual recent usage: 99%) over 180 seconds. thread lifetime cpu usage 91.591946 seconds, (75.959886 user, 15.632060 system) ledger info: balance: 90000109700 credit: 91486467544 debit: 1486357844 limit: 90000000000 (50%) period: 180000000000 time since last refill (ns): 90105095085
   Nov 5 11:54:53 PM notification timeout (pid 275, Creative Cloud)
   Nov 5 11:54:53 PM notification timeout (pid 344, Adobe CEF Helper)
   Nov 5 11:54:53 PM notification timeout (pid 343, Adobe CEF Helper)
   Nov 5 12:35:03 jnl: b(1, 2): replay_journal: from: 57934848 to: 61127168 (joffset 0x1721c000)
   Nov 5 12:35:03 jnl: b(1, 2): journal replay done.
   Nov 5 12:38:37 jnl: b(1, 2): replay_journal: from: 61127168 to: 67488768 (joffset 0x1721c000)
   Nov 5 12:38:37 jnl: b(1, 2): journal replay done.
   Nov 5 12:38:40 ** GPU Hardware VM is disabled (multispace: disabled, page table updates with DMA: disabled)
   Nov 5 13:26:28 process mdworker32[357] thread 8766 caught burning CPU! It used more than 85% CPU (Actual recent usage: 86%) over 40 seconds. thread lifetime cpu usage 81.048638 seconds, (76.580865 user, 4.467773 system) ledger info: balance: 34001309838 credit: 80940733771 debit: 46939423933 limit: 34000000000 (85%) period: 40000000000 time since last refill (ns): 39339579198 [fatal violation]
   Nov 5 14:26:53 PM notification timeout (pid 231, Creative Cloud)
   Nov 5 14:26:53 PM notification timeout (pid 325, Adobe CEF Helper)
   Nov 5 14:26:53 PM notification timeout (pid 326, Adobe CEF Helper)
   Nov 5 14:45:49 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 5 14:45:49 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 5 14:47:27 process discoveryd[49] thread 1023 caught burning CPU! It used more than 50% CPU (Actual recent usage: 99%) over 180 seconds. thread lifetime cpu usage 91.572722 seconds, (77.540749 user, 14.031973 system) ledger info: balance: 90015163759 credit: 91483527972 debit: 1468364213 limit: 90000000000 (50%) period: 180000000000 time since last refill (ns): 90121915160
   Nov 5 15:13:33 ** GPU Hardware VM is disabled (multispace: disabled, page table updates with DMA: disabled)
   Nov 6 08:25:36 ** GPU Hardware VM is disabled (multispace: disabled, page table updates with DMA: disabled)
   Nov 6 11:59:36 PM notification timeout (pid 286, Creative Cloud)
   Nov 6 11:59:36 PM notification timeout (pid 355, Adobe CEF Helper)
   Nov 6 11:59:36 PM notification timeout (pid 356, Adobe CEF Helper)
   Nov 6 12:29:24 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 6 12:29:24 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 6 12:29:24 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 6 12:29:24 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 6 12:29:24 smbsmb2_sm2_b_parse_smchabnge_no_tipfary: ssmb_er_chq_replya failngeed_n ot6if0
   Nov 6 12:29:24 y: smb_rq_reply failed 60
   Nov 6 12:29:24 smb2_ssmmb2_b_spmabr_sparsee_c_hancgeh_naotinfgy: smb_rq_re_epnlyoti failfedy :60 sm
   Nov 6 12:29:24 b_rq_reply failed 60
   Nov 6 12:29:24 rs failed Qsmumber2b_sy m_Inrqfbo __pa60rr
   Nov 6 12:29:24 rse_change_notify: smb_rq_reply failed 60
   Nov 6 12:29:24 ply failed 60smb2_smb_parse_change
   Nov 6 12:29:24 _notify: smsmb_rq_reply failb2_ed smb_6parse_0
   Nov 6 12:29:24 ply failed smb2_smb_pa60
   Nov 6 12:29:24 rse_change_nsmb2otif_smy:b_ spmb_rq_reply failedars e_c60han
   Nov 6 12:29:24 ge_notify: smb_smb2_smb_parse_chrqange__repnotify: smb_rly fq_ailed reply failed 60
   Nov 6 12:29:24 smb2_smb_parssmb2_e_smbchange_pa_nrsote_chifany:ge _nosmb_tifrq_y:re smplb_y rq_fareilply failed 60
   Nov 6 12:29:24 y failed 60
   Nov 6 12:29:24 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 6 12:29:24 q_reply failed 60
   Nov 6 12:29:24 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 6 12:29:24 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 6 12:29:24 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 6 14:01:02 process discoveryd[49] thread 1259 caught burning CPU!; EXC_RESOURCE supressed due to audio playback
   Nov 6 15:49:49 ** GPU Hardware VM is disabled (multispace: disabled, page table updates with DMA: disabled)
   Nov 6 16:10:23 process Adobe InDesign C[435] caught causing excessive wakeups. Observed wakeups rate (per sec): 309; Maximum permitted wakeups rate (per sec): 150; Observation period: 300 seconds; Task lifetime number of wakeups: 45011
   Nov 7 08:25:38 ** GPU Hardware VM is disabled (multispace: disabled, page table updates with DMA: disabled)
   Nov 10 09:28:46 process discoveryd[49] thread 1195 caught burning CPU! It used more than 50% CPU (Actual recent usage: 99%) over 180 seconds. thread lifetime cpu usage 152.284113 seconds, (127.648543 user, 24.635570 system) ledger info: balance: 90002963251 credit: 152063056684 debit: 62060093433 limit: 90000000000 (50%) period: 180000000000 time since last refill (ns): 90142287445
   Nov 10 09:42:09 ** GPU Hardware VM is disabled (multispace: disabled, page table updates with DMA: disabled)
   Nov 10 11:20:45 process discoveryd[49] thread 1182 caught burning CPU! It used more than 50% CPU (Actual recent usage: 99%) over 180 seconds. thread lifetime cpu usage 150.526060 seconds, (126.552866 user, 23.973194 system) ledger info: balance: 90000111985 credit: 150369654672 debit: 60369542687 limit: 90000000000 (50%) period: 180000000000 time since last refill (ns): 90164134478
   Nov 10 12:14:06 PM notification timeout (pid 261, Creative Cloud)
   Nov 10 12:14:06 PM notification timeout (pid 332, Adobe CEF Helper)
   Nov 10 12:14:06 PM notification timeout (pid 333, Adobe CEF Helper)
   Nov 10 12:43:27 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 10 12:43:27 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 10 12:43:27 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 10 12:43:27 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 10 12:43:27 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 10 12:43:27 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 10 12:43:27 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 10 12:43:27 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 10 12:43:27 y failed 60
   Nov 10 12:43:27 failed mb60
   Nov 10 12:43:27 smb_rq_reply failed 60
   Nov 10 12:43:27 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 10 12:43:27 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 10 12:43:27 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 10 12:43:27 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 10 12:43:27 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 10 12:43:27 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 10 12:43:27 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 10 12:43:27 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 10 12:43:27 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 10 12:43:27 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 10 12:43:27 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 10 12:43:27 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 10 12:43:27 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 10 12:43:27 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 10 12:43:27 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 10 12:43:27 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 10 12:43:27 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 10 12:43:27 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 10 12:43:27 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 10 12:43:27 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 10 12:43:27 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 10 12:43:27 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 10 12:43:27 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 10 12:46:06 process WindowServer[121] caught causing excessive wakeups. EXC_RESOURCE supressed due to audio playback
   Nov 10 12:49:29 jnl: b(1, 2): replay_journal: from: 27704832 to: 35355648 (joffset 0x1721c000)
   Nov 10 12:49:29 jnl: b(1, 2): journal replay done.
   Nov 10 12:54:05 jnl: b(1, 2): replay_journal: from: 35355648 to: 40313344 (joffset 0x1721c000)
   Nov 10 12:54:05 jnl: b(1, 2): journal replay done.
   Nov 10 12:54:08 ** GPU Hardware VM is disabled (multispace: disabled, page table updates with DMA: disabled)
   Nov 10 14:31:43 PM notification timeout (pid 232, Creative Cloud)
   Nov 10 14:31:43 PM notification timeout (pid 327, Adobe CEF Helper)
   Nov 10 14:31:43 PM notification timeout (pid 324, Adobe CEF Helper)
   Nov 10 15:07:47 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 10 15:07:47 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 10 15:07:47 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 10 15:07:47 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 10 15:07:47 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 10 15:07:47 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 10 15:07:47 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 10 15:07:47 : smb_rq_reply failesmbd 2_smb_60
   Nov 10 15:07:47 parse_change_notify: smb_rq_reply failed 60
   Nov 10 15:07:47 tify: smb_rq_reply failed 60
   Nov 10 15:07:47 smb2_smb_parse_change_nsotify:mb2 sm_b_rq_reply sfailmed b60
   Nov 10 15:07:47 _parse_change_notify: smbsmb2_rq__rsepmb_parsly failee_d ch60ange_notify
   Nov 10 15:07:47 : smb_rq_reply failed 60
   Nov 10 15:07:47 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 10 15:07:47 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 10 15:07:47 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 10 15:47:46 process discoveryd[49] thread 1013 caught burning CPU! It used more than 50% CPU (Actual recent usage: 99%) over 180 seconds. thread lifetime cpu usage 153.503446 seconds, (128.774521 user, 24.728925 system) ledger info: balance: 90007455004 credit: 153327303891 debit: 63319848887 limit: 90000000000 (50%) period: 180000000000 time since last refill (ns): 90099512937
   Nov 11 08:25:38 ** GPU Hardware VM is disabled (multispace: disabled, page table updates with DMA: disabled)
   Nov 11 09:38:05 process Adobe InDesign C[553] caught causing excessive wakeups. Observed wakeups rate (per sec): 283; Maximum permitted wakeups rate (per sec): 150; Observation period: 300 seconds; Task lifetime number of wakeups: 45017
   Nov 10 14:31:43 PM notification timeout (pid 327, Adobe CEF Helper)
   Nov 10 14:31:43 PM notification timeout (pid 324, Adobe CEF Helper)
   Nov 10 14:31:43 com.apple.dpd: Service exited with abnormal code: 75
   Nov 10 15:07:47 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 10 15:07:47 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 10 15:07:47 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 10 15:07:47 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 10 15:07:47 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 10 15:07:47 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 10 15:07:47 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 10 15:07:47 : smb_rq_reply failesmbd 2_smb_60
   Nov 10 15:07:47 parse_change_notify: smb_rq_reply failed 60
   Nov 10 15:07:47 tify: smb_rq_reply failed 60
   Nov 10 15:07:47 smb2_smb_parse_change_nsotify:mb2 sm_b_rq_reply sfailmed b60
   Nov 10 15:07:47 _parse_change_notify: smbsmb2_rq__rsepmb_parsly failee_d ch60ange_notify
   Nov 10 15:07:47 : smb_rq_reply failed 60
   Nov 10 15:07:47 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 10 15:07:47 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 10 15:07:47 smb2_smb_parse_change_notify: smb_rq_reply failed 60
   Nov 10 15:47:46 process discoveryd[49] thread 1013 caught burning CPU! It used more than 50% CPU (Actual recent usage: 99%) over 180 seconds. thread lifetime cpu usage 153.503446 seconds, (128.774521 user, 24.728925 system) ledger info: balance: 90007455004 credit: 153327303891 debit: 63319848887 limit: 90000000000 (50%) period: 180000000000 time since last refill (ns): 90099512937
   Nov 10 16:47:01 com.apple.WebKit.Networking.UUID: Service exited with abnormal code: 1
   Nov 11 08:25:37 com.apple.Kerberos.kdc: Service exited with abnormal code: 1
   Nov 11 08:25:38 ** GPU Hardware VM is disabled (multispace: disabled, page table updates with DMA: disabled)
   Nov 11 08:56:36 com.apple.dpd: Service exited with abnormal code: 75
   Nov 11 09:38:05 process Adobe InDesign C[553] caught causing excessive wakeups. Observed wakeups rate (per sec): 283; Maximum permitted wakeups rate (per sec): 150; Observation period: 300 seconds; Task lifetime number of wakeups: 45017
CPU per process: com.apple.WebKit (UID 501) is using 41.2 %
Daemons
   com.apple.installer.osmessagetracing
   com.microsoft.office.licensing.helper
   com.adobe.fpsaud
Agents
   com.adobe.CS4ServiceManager
   com.adobe.AdobeCreativeCloud
   com.adobe.ARM.UUID
   com.adobe.ARM.UUID
   com.apple.Safari
   com.adobe.ARM.UUID
   com.google.keystone.user.agent
   com.apple.AirPortBaseStationAgent
App extensions
   com.apple.InternalFiltersXPC
Contents of /Library/LaunchAgents/com.adobe.AdobeCreativeCloud.plist (checksum 461455494)
   <?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.adobe.AdobeCreativeCloud</string>
    <key>Program</key>
    <string>/Applications/Utilities/Adobe Creative Cloud/ACC/Creative Cloud.app/Contents/MacOS/Creative Cloud</string>
    <key>ProgramArguments</key>
    <array>
    <string>/Applications/Utilities/Adobe Creative Cloud/ACC/Creative Cloud.app/Contents/MacOS/Creative Cloud</string>
    <string>--showwindow=false</string>
          <string>--onOSstartup=true</string>
    </array>
    <key>RunAtLoad</key>
    <true/>
   </dict>
   </plist>
Contents of Library/LaunchAgents/com.adobe.AAM.Updater-1.0.plist (checksum 4071182229)
   <?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.adobe.AAM.Scheduler-1.0</string>
     <key>Program</key>
     <string>/Library/Application Support/Adobe/OOBE/PDApp/UWA/UpdaterStartupUtility</string>
     <key>ProgramArguments</key>
     <array>
        <string>/Library/Application Support/Adobe/OOBE/PDApp/UWA/UpdaterStartupUtility</string>
        <string>-mode=scheduled</string>
     </array>
     <key>StartCalendarInterval</key>
     <dict>
       <key>Minute</key>
       <integer>0</integer>
       <key>Hour</key>
       <integer>2</integer>
     </dict>
    </dict>
   </plist>
Contents of Library/LaunchAgents/com.adobe.ARM.UUID.plist (checksum 394026997)
   <?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.adobe.ARM.UUID</string>
    <key>ProgramArguments</key>
    <array>
    <string>/Applications/Adobe Reader.app/Contents/MacOS/Updater/Adobe Reader Updater Helper.app/Contents/MacOS/Adobe Reader Updater Helper</string>
    <string>semi-auto</string>
    </array>
    <key>RunAtLoad</key>
    <true/>
    <key>StartInterval</key>
    <integer>12600</integer>
   </dict>
   </plist>
Contents of Library/LaunchAgents/com.adobe.ARM.UUID.plist (checksum 4116814193)
   <?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.adobe.ARM.UUID</string>
    <key>ProgramArguments</key>
    <array>
    <string>/Applications/Adobe Acrobat XI Pro/Adobe Acrobat Pro.app/Contents/MacOS/Updater/Adobe Acrobat Updater Helper.app/Contents/MacOS/Adobe Acrobat Updater Helper</string>
    <string>semi-auto</string>
    </array>
    <key>RunAtLoad</key>
    <true/>
    <key>StartInterval</key>
    <integer>12600</integer>
   </dict>
   </plist>
Contents of Library/LaunchAgents/com.adobe.ARM.UUID.plist (checksum 926752576)
   <?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.adobe.ARM.UUID</string>
    <key>ProgramArguments</key>
    <array>
    <string>/Applications/Adobe Acrobat X Pro/Adobe Acrobat Pro.app/Contents/MacOS/Updater/Adobe Acrobat Updater Helper.app/Contents/MacOS/Adobe Acrobat Updater Helper</string>
    </array>
    <key>RunAtLoad</key>
    <true/>
    <key>StartInterval</key>
    <integer>12600</integer>
   </dict>
   </plist>
Contents of Library/LaunchAgents/com.apple.SafariBookmarksSyncer.plist (checksum 4209634474)
   <?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.Safari</string>
    <key>LimitLoadToSessionType</key>
    <string>Aqua</string>
    <key>ProgramArguments</key>
    <array>
    <string>/Applications/Safari.app/Contents/SafariSyncClient.app/Contents/MacOS/S afariSyncClient</string>
    <string>--sync</string>
    <string>com.apple.Safari</string>
    <string>--entitynames</string>
    <string>com.apple.bookmarks.Bookmark,com.apple.bookmarks.Folder</string>
    </array>
    <key>RunAtLoad</key>
    <false/>
    <key>ThrottleInterval</key>
    <integer>60</integer>
    <key>WatchPaths</key>
    <array>
    <string>/Users/USER/Library/Safari/Bookmarks.plist</string>
    </array>
   </dict>
   ...and 1 more line(s)
Contents of Library/LaunchAgents/com.google.keystone.agent.plist (checksum 64800286)
   <?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.google.keystone.user.agent</string>
    <key>LimitLoadToSessionType</key>
    <string>Aqua</string>
    <key>ProgramArguments</key>
    <array>
     <string>/Users/USER/Library/Google/GoogleSoftwareUpdate/GoogleSoftwareUpdate.bu ndle/Contents/Resources/GoogleSoftwareUpdateAgent.app/Contents/MacOS/GoogleSoftw areUpdateAgent</string>
     <string>-runMode</string>
     <string>ifneeded</string>
    </array>
    <key>RunAtLoad</key>
    <true/>
    <key>StartInterval</key>
    <integer>3523</integer>
    <key>StandardErrorPath</key>
    <string>/dev/null</string>
    <key>StandardOutPath</key>
    <string>/dev/null</string>
   </dict>
   </plist>
Bad plists
   Library/Preferences/com.apple.iphotomosaic.plist
Listeners
   launchd: afpovertcp
   launchd: afpovertcp
   launchd: microsoft-ds
   launchd: ssh
   launchd: microsoft-ds
   launchd: ssh
   kdc: kerberos
User login items
   Microsoft Outlook
   - /Applications/Microsoft Office 2011/Microsoft Outlook.app
   TransmitMenu
   - /Applications/Transmit.app/Contents/MacOS/TransmitMenu.app
   ClipMenu
   - /Applications/ClipMenu.app
   Dept
   - /Volumes/Dept
   Public
   - /Volumes/Public
   Apps
   - /Volumes/Apps
Restricted files: 4584
Lockfiles: 99
Elapsed time (s): 352

Finder and loginwindow use 100% cpu with 10.6.8

I recently installed the patch to OS X 10.6.8 and now the finder is very unstable and uses 100% cpu and the loginwindow uses 100% cpu also. Yes I have Parallels 6 on this machine but I already "un-checked" the "show windows applications in doc" option which is the recommended solution. However, this did not fix the problem. I do not know how to determine what actual process is causing this finder / loginwindow issue. I very much appreciate if anyone has suggestion how to fix this problem.
This is on a mid-2011 MacBookPro.
thank you.

TBauer, I had the same problem with 10.6.8 using 100% of the CPU with Parallels 6 installed. The following steps solved this problem for me:
0. Take a screen shot of your Dock if you wish to remember it as currently set
1. Launch Activity Monitor and click on the CPU column so you can see Dock using the CPU
2. Move ///Users/ ... /Library/Preferences/com.apple.dock.plist to the trash
3. Click on Dock and click on Quit Process to stop the Dock
OS X will then rebuild the default Dock
4. Put the items back in the Dock that you want
That solved the problem for me yesterday morning. I've launched Parallels 6 several times now and moved the machine from my work network to home and the 100% CPU problem hasn't returned.
Hope that works for you, too!
I don't think using the combo updater will solve the problem. The problem appears to be a .plist that is generated with OS X 10.6.7 and earlier that contains icons of a larger than Apple documented size causes the CPU looping. Rebuilding the dock.plist under OS X 10.6.8 appears to solve the problem.
Parallels has issued a knowledge bulletin saying they are looking into the problem. On their web site they have another approach involving moving the offending icon out of the dock to solve the problem. I like my solution better but theirs works, too.

New DVD writer on Satellite M40-193 uses 100% CPU

Hello anyone,
recently I have replaced my DVD-writer with a new one. My laptop is a Satellite M40-193 (PSM40E-06M026IT) and the original drive is a Mat****a UJ-831B. I have replaced it with a Sony-Nec Optiarc AD-7633A because I like the slot-in feature and the Labelflash feature.
Unfortunately it makes me a problem. It will use 100% CPU every time I use it. I cannot figure out the problem. Is there anyone who can help me? It is a software problem or hardware?
Thank you.

After six days this is the only help I can get on this forum: "...this optical disc drive is compatible with your notebook model?".
The ATA communication bus is a standard.
The exsistence of a compatibility list does not means that ONLY those drives present in the list can work with the relative notebook.
Those drives are the ones tested and the ones that Toshiba says: "this drive surelly work" but not says "this is the only drive that work".
In fact I have RESOLVED the question with a little software I have found on another forum and now my drive works perfectly and I have a newer and more featured drive than those in the list.
Thank you Mike

Oracle uses 100% CPU

Hi,
I have installed Oracle 10g R2 on 64bit linux. It was working fine, until last week. I got alert that oracle uses 100% CPU.
Some lines from alert:
4894 /opt/oracle/product/10.2.0/db/perl/bin/perl /opt/oracle/product/10.2.0/db/sysman/admin/scripts/db/dbresp.pl 56.3 12978 7720 22860 oracle
9244 /opt/oracle/product/10.2.0/db/perl/bin/perl /opt/oracle/product/10.2.0/db/sysman/admin/scripts/db/dbresp.pl 50.4 10357 7720 22860 oracle
11798 /opt/oracle/product/10.2.0/db/perl/bin/perl /opt/oracle/product/10.2.0/db/sysman/admin/scripts/db/dbresp.pl 41.1 4429 7720 22860 oracle
11740 /opt/oracle/product/10.2.0/db/perl/bin/perl /opt/oracle/product/10.2.0/db/sysman/admin/scripts/db/dbresp.pl 28.3 45350 7724 22864 oracle
1516 /opt/oracle/product/10.2.0/db/perl/bin/perl /opt/oracle/product/10.2.0/db/sysman/admin/scripts/db/dbresp.pl 24.2 29968 7728 22868 oracle
17006 /opt/oracle/product/10.2.0/db/perl/bin/perl /opt/oracle/product/10.2.0/db/sysman/admin/scripts/db/dbresp.pl 21.8 21913 7724 22864 oracle
19449 /opt/oracle/product/10.2.0/db/perl/bin/perl /opt/oracle/product/10.2.0/db/sysman/admin/scripts/db/dbresp.pl 21.5 20865 7720 22860 oracle
24877 /opt/oracle/product/10.2.0/db/perl/bin/perl /opt/oracle/product/10.2.0/db/sysman/admin/scripts/db/dbresp.pl 21.0 18708 7728 22868 oracle
26566 /opt/oracle/product/10.2.0/db/perl/bin/perl /opt/oracle/product/10.2.0/db/sysman/admin/scripts/db/dbresp.pl 18.4 5727 7724 22864 oracle
1788 /opt/oracle/product/10.2.0/db/perl/bin/perl /opt/oracle/product/10.2.0/db/sysman/admin/scripts/db/dbresp.pl 17.1 3319 7724 22864 oracle
When I log in to EM, I can see section
Host CPU
It is 100%.
I have only instance named "parama". and it uses 1% CPU ant the picture shows that 99% CPU is used By Other.
What is Other? Why does it use that much CPU?
I had another oracle instance few months ago, but I is not used now (it is not even started).
How do I restore normal system performance?
Can I kill these processes?

Hello,
I have a similar problem. I see 2 perl processes related to Oracle that are taking up 99% of 2 cpus. These 2 perl processes have been running for days and keeping the load average high (above 2) on a mostly idle system.
The 2 perl processes are running:
/oracle/app/product/10.2.0/db_1/perl/bin/perl /oracle/app/product/10.2.0/db_1/sysman/admin/scripts/db/dbarchfull.pl
and
/oracle/app/product/10.2.0/db_1/perl/bin/perl /oracle/app/product/10.2.0/db_1/sysman/admin/scripts/db/dbresp.pl
Has anyone seen this problem? Can I kill the perl processes?
--Dan

Start x11vnc -- X uses 100% cpu load

Hi.
I switched to arch64 and today I first used x11vnc and it is extremly slow. First I thought about the proxied connection but after looking into top I found X is using 100% cpu load. With arch32 everything worked as normal. Don't know whats the problem - any advices?
Regard, Andreas

Hmmm, I switched from official nvidia driver to xf86-video-nv and now works much better. I'll try it again with nvidia but not today...

All programs using 100% CPU, freezing, crashing, -10810, -600, and -1712 errors

Okay, so. I have a Macbook Pro from December 2012, a little over a year old.
Version 10.9.1, running Mavericks
Processor 2.4 GHz Intel Core i7
Memory 8 GB
Startup Disk - Macintosh HD
I can send more info if I need to. I'm a graphic designer using Photoshop, Illustrator, and InDesign usually simultaneously, as well as Spotify, Messages, Sparrow (mail), Stickies, Tweetdeck, and Evernote. I also use a wireless mouse, drawing tablet, and second screen. This has never been a problem (I mean, my old computer had 4 GB memory and handled these programs just fine, except for Final Cut Pro 7) up until recently.
For the last two months, my computer has been seriously out of whack.
I'm constantly having to refresh finder
Every time I open Google Chrome, all of my extentions crash immediately and any website I try to go to is extremely sluggish (but Safari works)
The dock freezes
Constant error messages: 1712, 10810, 600
Audio fails randomly
Overall, the problem seems to be that I can't do more than one thing at a time -- I can't take a screenshot if more than two programs are open, I can't open DMG files, I can't open Spotify if any Creative Suite program is open. I've been watching the activity monitor, and it seems like each program is trying to use 100% CPU, which doesn't seem right. I have to close every program to work in Photoshop, which makes me miss calls and emails.
I've tried restarting in safe mode, verifiyng the disk and repairing permissions, I used time capsule to restore to a time before it was happening, and restored my user profile in Chrome. I'm at my complete wit's end trying to figure this out! I feel like my next step is to just reinstall my OS completely, but that would be a major setback for getting my work done, and I'm not even sure that would work.
I've looked on other forums and it seems like the Mail app typically causes problems, but I don't even use it, I use Sparrow.
PLEASE PLEASE PLEASE HELP

Launch error -10810 in Mavericks
I have the same issue since a couple of days. Nothing that I found in the community (rebuilding launch info using Onyx or manually deleting the apple.com-launch prefs) has helped me so far. Only some apps are affected (PasswordWallet 4.7.4 among them).
I can launch it once and it will run fine as long as it’s open. Next time it refuses to open displaying the error -10810 message instead. I trash the app and use a fresh one off the vendor’s dmg file I downloaded and the sequence repeats.
MacPro 2.8 QuadCore Intel Xeon, 16 Gig RAM, Samsung SSD 840 PRO Series HD plus 3 more regular 3,5“ HDs, Mavericks 10.9.3

Ff stalls out when opening new tabs, using 100% cpu on mac

went to leave this in the feedback section but that doesnt work either, nothing gets sent. but anyways, new tabs always feeze or stall for over a min, using 100% cpu. running mac 10.6.8. never had problem on earlier versions of ff but ff5 is broken im sorry to say on macs. please advise or fix, more and more people are experiencing this same issue but nothing is being done to resolve.

16gb aint enough lol> imac 27 , top of line, ssd hdd, 16gb ram, all updates, if memory was bad it would happen on other browsers or apps, only happens when you specifically open a new tab.

Xcode using 100% cpu even with no projects open: Solution

Symptom:
I had a very strange problem with Xcode 3.2.1 on Snow Leopard 10.6.2. As soon as I opened a project, Xcode would start using 100% of the cpu. It would continue doing this even after I closed ALL open projects. Xcode was using 100% cpu (200% actually) even while idle! Xcode would also often hang. I tried deleting Xcode and reinstalling twice. That didn't help. After much searching and trial and error I discovered the problem and the solution:
Problem:
I had an SCM entry defined from a previous remote site session in the SCM tab of the Xcode preferences. This site was no longer responding to requests, and apparently Xcode was continually trying to connect. Apparently the preferences were saved across the uninstall even though I used the shell script to uninstall all the developer tools.
Solution:
Delete the unavailable repository from the SCM tab in Xcode preferences.
I hope this saves someone the aggravation this problem has caused me.
David Maynard

Post to the developer forums under OS X Technologies.

Thunderbird using 100% CPU?

I have Thunderbird 3.1.10 on a Macbook usng OSX Lion and Thunderbird has started using 100% CPU and causing the fan to run and tax the overall system. Unfortunately I use Mail for my stuff and Thunderbird is used for all my wife's e-mail so we can't really migrate over to Mail. Anyone run in to this before and find a succesful solution?
thx

Do you use McAFee ?
* see info: https://wiki.mozilla.org/Thunderbird:Testing:Antivirus_Related_Performance_Issues
Do you have large files?
If yes, consider organising mail into suitable folders and Archiving older emails.
* https://support.mozilla.org/en-US/kb/archived-messages
If you have an IMAP gmail account, do you see the 'All Mail' folder?
If yes, this is gmails archive of all of your emails, so it is only doubling all the emails and disc space. It is advised that you unsubscribe from seeing this folder.
More info here - scroll down to 'All Mail' section:
* http://kb.mozillazine.org/Using_Gmail_with_Thunderbird_and_Mozilla_Suite
Do you compact on a regular basis? info on compacting, what it does and why it is important:
* http://kb.mozillazine.org/Compacting_folders

Solution: iTunes 10.5 using 100% CPU / Not backing up your iPhone.

This solution has been documented on this forum by several people, but the solution is usually deep in multiple threads. I really don't know who came up with it first, but it does indeed work.
I had an issue with iTunes.exe, APSDaemon, and AppleMobileDeviceHelper.exe using 100% CPU per core. (Showed as 25% in Task Manager.)
I could not backup my iPhone and the CPU spike happened as soon as iTunes 10.5 was started on Windows 7 Home Premium x64.
This solved it.
Sounds stupid but works:
1. Quit iTunes.
2. Start an elevated command prompt (Start Menu -> All Programs -> Accessories -> Right Click "Command Prompt" -> "Run as Administrator")
3. Once in the command prompt, type "netsh winsock reset" and hit ENTER.
4. Reboot your machine.
5. Restart iTunes.
6. ???
7. Profit!

The netsh winsock reset resolved both the problem of AppleMobileDeviceService.exe using 100% of my CPU and the blank iTunes blank store issue.
XP Pro user here that had gone through the detailed step-by-step process of uninstalling iTunes as described on the support page but both problems still existed.
Glad I saw this. Thanks.
Now on to :
7. Profit!

Firefox using 100% cpu

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