I've been doing some looking around at log files, and the server has
remained rather stable the past few days after I disabled a few pages
which I suspected were cuprit pages. I thought everything was
alright.
However, just about an hour or so ago, it started to slow down. It
didn't become unmanagable, but it looked like it was ready to pop.
Conveniently, I had top running, and grabbed this snapshot:
231 processes: 107 running, 113 idle, 4 zombie, 5 dead, 2 on processor
CPU0 states: 2.8% user, 0.0% nice, 97.2% system, 0.0% interrupt, 0.0% idle
CPU1 states: 7.3% user, 0.0% nice, 92.7% system, 0.0% interrupt, 0.0% idle
Memory: Real: 227M/707M act/tot Free: 2317M Swap: 0K/2047M used/tot
Notice the "system" usage. Almost all of the running processes were
httpd. I would assume that most of the system usage is the result of
all the different processes getting swapped in and out of the
processer before finishing, resulting in the slowdown of all
processes. But this is an assumption.
My question, then is what can I do? I'm looking at my code to see any
potential slowdowns and trying to fix those, but 97% system usage
doesn't seem right. It seems like OpenBSD is freaking out at
something. Where can I look to see WHAT the system is doing while it
has a near monopoly on the CPUs.
Any suggestions?
Thanks,
-Jesse
On 11/28/06, L. V. Lammert <[EMAIL PROTECTED]> wrote:
On Tue, 28 Nov 2006, Jack J. Woehr wrote:
> On Nov 28, 2006, at 12:04 PM, Jesse Gumm wrote:
>
> > It runs Apache with php
>
> "With php", eh? Does one assume you have some kewl PHP code running
> on your server (still chroot'ed?)? Might look at your code!
>
Before you look at the code, you need to see which 179 processes are
active. I have seen exactly this sort of situation on a customer's machine
when their DNS was not responding and all of the mail processes were
hanging.
Once you see what is running, check the logs (assuming it's Apache) to see
what PAGE is running.
Look at that page should then give you a clue - is it accessing a
database? Sending email?
Lee
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Leland V. Lammert [EMAIL PROTECTED]
Chief Scientist Omnitec Corporation
Network/Internet Consultants www.omnitec.net
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http://www.dkpsystem.com
