Re: [squid-users] squid run with 100% usage

Hard to tell only from this.

What you need to check is what fd 10 (or whatever FD is repeatedly
reported as ready by poll) being used for when Squid is running at 100%
CPU?

Now some configuration questions:

a) Are you using --enable-time-hack?

b) Are you using delay pools?

c) Is there any suspecible requests in access.log at the time (or
actually, at the time when things settles down to normal again...)

d) What type of cache directory are you using?

And please try upgrading to a current Squid release..

Regards
Henrik Nordström
Squid Hacker

Dennis Berger wrote:
>
> Hi my squid shows 100% usage in top an strace shows me this messages.
> Btw the squid.dump raises to 5 mb in 2 seconds, with millions of the
> same message...
> -------------------strace -o /tmp/squid.dump -p 345-----------------
> gettimeofday({1002901170, 457031}, NULL) = 0
> poll([{fd=8, events=POLLIN}, {fd=9, events=POLLIN}, {fd=10,
> events=POLLIN}], 3, 0) = 0
> gettimeofday({1002901170, 457186}, NULL) = 0
> poll([{fd=8, events=POLLIN}, {fd=9, events=POLLIN}, {fd=10,
> events=POLLIN}], 3, 0) = 0
> gettimeofday({1002901170, 457341}, NULL) = 0
> poll([{fd=8, events=POLLIN}, {fd=9, events=POLLIN}, {fd=10,
> events=POLLIN}], 3, 0) = 0
> gettimeofday({1002901170, 457496}, NULL) = 0
> poll([{fd=8, events=POLLIN}, {fd=9, events=POLLIN}, {fd=10,
> events=POLLIN}], 3, 0) = 0
> gettimeofday({1002901170, 457667}, NULL) = 0
> poll([{fd=8, events=POLLIN}, {fd=9, events=POLLIN}, {fd=10,
> events=POLLIN}], 3, 0) = 0
> gettimeofday({1002901170, 457823}, NULL) = 0
> poll([{fd=8, events=POLLIN}, {fd=9, events=POLLIN}, {fd=10,
> events=POLLIN}], 3, 0) = 0
> gettimeofday({1002901170, 457977}, NULL) = 0
> poll([{fd=8, events=POLLIN}, {fd=9, events=POLLIN}, {fd=10,
> events=POLLIN}], 3, 0) = 0
> gettimeofday({1002901170, 458132}, NULL) = 0
> poll([{fd=8, events=POLLIN}, {fd=9, events=POLLIN}, {fd=10,
> events=POLLIN}], 3, 0) = 0
> gettimeofday({1002901170, 458287}, NULL) = 0
> poll([{fd=8, events=POLLIN}, {fd=9, events=POLLIN}, {fd=10,
> events=POLLIN}], 3, 0) = 0
> gettimeofday({1002901170, 458442}, NULL) = 0
> poll([{fd=8, events=POLLIN}, {fd=9, events=POLLIN}, {fd=10,
> events=POLLIN}], 3, 0) = 0
> gettimeofday({1002901170, 458596}, NULL) = 0
> poll([{fd=8, events=POLLIN}, {fd=9, events=POLLIN}, {fd=10,
> events=POLLIN}], 3, 0) = 0
> gettimeofday({1002901170, 458750}, NULL) = 0
> gettimeofday({1002901170, 458810}, NULL) = 0
> -----------------------------------------------------------------
>
> Its version squid-2.3.STABLE4-10.6.2.i386.rpm
> Can somebody explain what's going on here ?
> -----------------------------TOP--------------------
> 5:42pm up 1:05, 1 user, load average: 0.56, 0.50, 0.50
> 41 processes: 38 sleeping, 3 running, 0 zombie, 0 stopped
> CPU states: 40.0% user, 35.2% system, 0.0% nice, 24.6% idle
> Mem: 127764K av, 120708K used, 7056K free, 7792K shrd, 48592K
>
> buff
> Swap: 208056K av, 5844K used, 202212K free 49592K
>
> cached
>
> PID USER PRI NI SIZE RSS SHARE STAT %CPU %MEM TIME COMMAND
> 1420 squid 19 0 9624 9624 1144 R 99.0 7.5 3:05 squid
> -------------------------------------------------
Received on Fri Oct 12 2001 - 13:04:35 MDT