Messages in this thread | | | Date | Sat, 14 Nov 1998 18:02:16 +0100 (CET) | From | Andrea Arcangeli <> | Subject | Re: new processes very slow on otherwise responsive system (2.1.127 and 128) |
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On 13 Nov 1998, Tkil wrote:
>on both 2.1.127 and 2.1.128, heavy exec() (with a fair bit of I/O) >seems to cause the system to go into a busy wait state. during this >time, it is difficult/impossible/very slow to launch any new >processes.
Could you try again on my tree ftp://e-mind.com/pub/linux/kernel-patches/arca-19-...diff.gz and feedback? I changed schedule_timeout() to avoid inserting the timeout timer if the function is been recalled by a proces in in TASK_RUNNING state. That make tons of sense. schedule_timeout() will also log if it's been recalled with a state != TASKrunning or != TASK interruptible.
I read that problems arise when the system is been idle for some time, maybe this is the reason everything has worked fine so far here...
>if anyone would like further information, please just drop me a line >and i'd be glad to get it for you.
I _think_ to be the cause of the problem with my schedule_timeout(). I' ll try to reproduce here. Thanks and excuse me. I am doing my best (and this night I had a long sleep so I hope to be more smart then yesterday today ;-).
Andrea Arcangeli
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