My webserver is under super heavy load (about 250 simultaneous connections at
any given time). I am very frequently getting:
'couldnt spawn child process erorrs' when cgi scripts are attempted to be ran,
and overall server speed is bogged down.
I have already adjusted ND_OPEN and ND_FILES to increase file descriptors,
turned of all web logging (that helped for a few mins), but I think the
problem is with processes.. I was told that I need to hack the kernel to open
up allowable processes as well.. but I can not for the life of me find a doc
that sais how to do it for linux.
Here are my systems specs:
P2-450mhz with 384megs of ram.
Output from Top:
---------------------
6:22pm up 2 days, 50 min, 1 user, load average: 3.18, 1.91, 2.54
233 processes: 232 sleeping, 1 running, 0 zombie, 0 stopped
CPU states: 5.7% user, 10.2% system, 0.0% nice, 84.4% idle
Mem: 64168K av, 63408K used, 760K free, 73792K shrd, 836K buff
Swap: 261496K av, 19052K used, 242444K free 5120K cached
Output from vmstat:
-----------------------------
procs memory swap io system cpu
r b w swpd free buff cache si so bi bo in cs us sy id
0 8 0 28960 616 1220 12076 91 28 25 27 15 0 3 4 93
If anyone knows how to increase the amount of processes PLEASE let me know.
Thanks in advance,
Jeremy Gray
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