Messages in this thread | | | Date | Sat, 8 Mar 2003 21:50:15 -0500 | Subject | scheduler starvation running irman with 2.5.64bk2 | From | rwhron@earthlin ... |
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irman triggers some odd behavior with 2.5.64bk2 on uniprocessor K6/2 475. "ps aux" hasn't returned for a couple hours, though irman appears to be doing it's thing. I haven't tried irman on smp.
Time to run irman 3x.
2.5.63 4066 seconds 2.5.63-mjb1 2993 seconds 2.5.63-mm2-dline 2856 seconds 2.5.64 3473 seconds 2.5.64bk2 ??
Time to complete irman is variable because the amount of work done in 3 runs is also variable.
vmstat looks fairly typical, and it prints every 60 seconds.
vmstat 60 procs memory swap io system cpu r b w swpd free buff cache si so bi bo in cs us sy id 4 0 0 2564 376368 108 1916 0 0 0 0 1092 25978 2 98 0 4 0 0 2564 376368 108 1920 0 0 0 0 1092 26102 2 98 0
This is vmstat 60 from 2.5.64
procs memory swap io system cpu r b w swpd free buff cache si so bi bo in cs us sy id 4 0 0 2552 377024 116 1520 0 0 0 0 1092 32649 4 96 0 3 0 0 2552 377024 116 1520 0 0 0 0 1092 32865 5 95 0
There are probably less than 50 processes running. "ps aux" doesn't hear <ctrl z> or <ctrl c>.
Machine doesn't accept new ssh connections.
It's as if after starting irman, new processes don't get any CPU time.
-- Randy Hron http://home.earthlink.net/~rwhron/kernel/bigbox.html
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