Background activity overwhelms in the middle of the day
Just upgraded to a MacBook Pro, Intel, 10.5.2. Everything seems to work ok. But about 11:15 am, every day, the activity monitor shows CPU usage maxing out and all functions become faltering and sluggish, like typing with a stutter, you type something and wait to see it, or hit the scroll bar and wait for it to move. This lasts for a few hours before resuming normal speed. I look at the active processes and don't really understand what I'm seeing. It looks like this...
131 Activity Monitor olcharlie 4.0 5 14.64 MB 968.11 MB Intel
14 configd root 0.1 3 1.93 MB 596.94 MB Intel
103 coreaudiod root 0.0 2 964.00 KB 586.29 MB Intel
11 DirectoryService root 0.0 5 3.14 MB 588.80 MB Intel
16 distnoted daemon 0.0 1 748.00 KB 585.59 MB Intel
117 Dock olcharlie 0.9 3 13.05 MB 930.54 MB Intel
122 Finder olcharlie 0.0 7 7.34 MB 908.34 MB Intel
39 fseventsd root 0.0 10 1.26 MB 591.19 MB Intel
38 hidd root 0.1 3 1.48 MB 587.17 MB Intel
36 kdcmond root 0.0 2 1,024.00 KB 585.73 MB Intel
0 kernel_task root 11.3 57 61.02 MB 1.14 GB Intel
34 loginwindow olcharlie 0.0 4 9.28 MB 937.56 MB Intel
409 Mail olcharlie 1.4 14 38.30 MB 970.24 MB Intel
33 mds root 0.4 16 12.22 MB 693.71 MB Intel
393 mdworker nobody 0.0 3 2.75 MB 598.46 MB Intel
605 mdworker olcharlie 0.1 3 6.60 MB 602.36 MB Intel
85 NetBarrier Daemo root 0.0 3 2.41 MB 597.89 MB Intel
130 NetBarrier Monitor olcharlie 1.0 1 4.90 MB 915.01 MB Intel
26 ntpd root 0.0 1 828.00 KB 586.12 MB Intel
135 pmTool root 1.0 1 1.27 MB 595.68 MB Intel
416 Safari olcharlie 99.8 10 144.03 MB 1.14 GB Intel
49 socketfilterfw root 0.0 3 1.52 MB 585.93 MB Intel
121 SystemUIServer olcharlie 0.1 10 10.21 MB 932.50 MB Intel
115 UserEventAgent olcharlie 0.0 2 2.10 MB 588.31 MB Intel
137 virusbarrierb root 0.1 11 912.00 KB 591.82 MB Intel
143 virusbarriers root 0.2 1 15.88 MB 609.27 MB Intel
173 virusbarriers root 0.3 1 19.77 MB 609.27 MB Intel
91 virusbarriers root 0.2 1 15.89 MB 609.27 MB Intel
50 virusbarriers root 0.0 3 12.08 MB 601.29 MB Intel
86 WindowServer _windowserver 0.6 5 32.01 MB 948.89 MB Intel
Changing every 2 seconds. I thought all background maintenance happened at 3:00 am and so have it scheduled to turn on at that time each morning. And in the morning it's on and running at normal speed... until 11:15. This lasts for several hours and is really unhandy. What's happening and how do I fix it? I notice the battery is always at around 60% also, I've never seen it at 100%... could this be related in some way? Should I be concerned? Thanks for any help you can offer.
I don't know how to interpret all this, but I am wondering if you can just find and quit the CPU hog? Be sure that "All Processes is selected at the top and that the bottom bar is set to CPU. Then scan down the CPU column and see what the hog is and quit it. Make note of what it is and if it's always the same thing.
You can check on when the launch daemons are scheduled to run the maintenance scripts. Finder>Macintosh HD>System>Library>LaunchDaemons>com.apple.periodic_daily.plist.
For weekly: com.apple.periodic_weekly.plist
for monthly: com.apple.periodic.monthly.plist
The daily should be set to run at 3:15 AM, the weekly for 3:15 AM on Saturday, and the Monthly for 5:30 AM on the first day of the month.
If the computer is on and awake, it will run the scripts then. If it is asleep, it will run them when it wakes up. There is a widget called "Maintidget" that you can install that will tell you when they were last run or allow you to run them manually.
Offhand, I don't think that this is a Maintenance script--I think it is something else getting launched and getting into some sort of a loop. If you can tell what it is from the CPU column of the Activity monitor and post back, that would be very helpful. I don't think I know enough about software to tell you how to fix it, but I imagine that there are others who can. But getting it identified for sure is the first step.
Good luck!
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1 612 720 780 1200 Tuesday
1 492 720 780 1080 Wednesday
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