On May 27, 2008, at 7:51 PM, Unga wrote:
Appreciate if Chuck Swiger could enlighten us again on
what priority X run on Mac OSX? realtime or normal?
The X11 server seems to run with mildly elevated priority (46, where
realtime is > 60 or so); something like an xterm runs with normal/
default priority of 31:
USER PID %CPU %MEM VSZ RSS TT STAT STARTED TIME
PRI COMMAND
root 69 0.0 0.2 79700 3904 ?? Ss 16May08 0:02.74
63 /usr/sbin/coreaudiod
cswiger 89 0.0 0.1 350800 2308 ?? S 16May08 0:00.70
63 /usr/sbin/UserEventAgent -l Aqua
root 37 0.0 0.0 599664 704 ?? Ss 16May08 0:00.01
63 /sbin/dynamic_pager -F /private/var/vm/swapfile
windowserver57 0.4 3.2 477116 66272 ?? Ss 16May08 51:38.50
63 /System/Library/Frameworks/ApplicationServices.framework/Frameworks/
CoreGraphics.framework/Resources/WindowServer -daemon
cswiger 31 0.0 1.0 454876 19936 ?? Ss 16May08 2:41.97
63 /System/Library/CoreServices/loginwindow.app/Contents/MacOS/
loginwindow console
cswiger 2142 0.0 3.5 530720 73700 ?? S Fri07PM 75:16.23
62 /Applications/iTunes.app/Contents/MacOS/iTunes -psn_0_884952
[ ... ]
cswiger 6449 0.0 0.4 437152 8456 s02 S+ 9:16PM 0:06.87
46 /usr/X11/bin/X/Applications/Utilities/X11.app/Contents/MacOS/X11 -
auth /Users/cswiger/.Xauthority -launchd :1
cswiger 6461 0.0 0.3 83768 6060 s03 S 9:17PM 0:00.10
31 xterm
cswiger 6467 0.0 0.1 356520 2512 ?? S 9:17PM 0:00.05
31 quartz-wm
[ ...the above may wrap poorly, curse you format=flowed MIME type... ]
Note that realtime tasks like iTunes uses up a lot of CPU time
compared with normal processes; it's even using more CPU time than the
WindowServer has. (This is from a MBP with a 2.33 GHz Core2Duo,
running 10.5.2...)
--
-Chuck
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