Linux-kernel mailing list archive 1999-22,: Kernel 2.2.9 fails to handle load.

# Kernel 2.2.9 fails to handle load.

Yann Doussot (doussot@gifrance.com)
Thu, 3 Jun 1999 12:14:24 +0200 (CET)

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Hi,

I've noticed a serious problem with linux 2.2.9. Configuration:

- Dell Dual PII 400 - 256 Mo
- Megaraid Raid 5 board
- Apache 1.3.6 with 200 Max clients + PHP3
- NR_TASKS raised to 2048
- Some proc values raised:
/proc/sys/fs/file-max:32768
/proc/sys/fs/inode-max:65536
/proc/sys/kernel/shmmax:268435456

I tried the ab programm (benchmark tool shipped with Apache). I've
runned it with 2000 requests. After the run, the system is in very bad
state: more than 100 Apache zombie process that does not go away and if I
try a ps -aux, sometimes I got:

zsh: fork failed: resource temporarily unavailable

I also tried 2.2.9_andrea3 patch with same result. Ideas ?

Thanks.

    ---
    Yann Doussot <doussot@gifrance.com>
    Grey Interactive - France - http://www.gifrance.com/
    Cell: +33 6 12 71 70 03   Work: + 33 1 46 84 85 00

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