Date: Mon, 16 Jul 2001 18:49:46 +0100 (BST) From: Rob <rob@breakbeat.net> To: freebsd-questions@freebsd.org Subject: Inactive/leak memory Message-ID: <Pine.BSF.4.21.0107161837370.1233-100000@phoenix.shells.co.uk>
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Hi,
I'm running 4.3 on a dual P3-550, with 1Gb RAM, and have been noticing odd
reports in the 'top' values. After a reboot, the server slowly begins to lose
memory from the free column into the inactive column, resulting in a bizarre set
of values.
This server is a live webserver, running Apache, with PHP and PostgreSQL. The
laods are fairly low, and since I've had this box constantly CVSupped, with the
latest updates to the webserver etc, I'm pretty stumped as to why this situation
is happening.
Here's the top part of the top output, after only 15 days of uptime:
last pid: 99471; load averages: 0.56, 0.24, 0.13
up 15+21:26:00 17:13:02
50 processes: 1 running, 49 sleeping
CPU states: 1.9% user, 0.0% nice, 1.4% system, 0.4% interrupt, 96.3% idle
Mem: 22M Active, 668M Inact, 87M Wired, 152K Cache, 112M Buf, 227M Free
Swap: 512M Total, 512M Free
PID USERNAME PRI NICE SIZE RES STATE C TIME WCPU CPU COMMAND
189 pgsql 2 0 4408K 1552K select 1 11:36 0.00% 0.00% postgres
207 root 2 0 4856K 4012K select 1 4:43 0.00% 0.00% httpd
72058 www 2 0 5252K 4624K sbwait 1 0:55 0.00% 0.00% httpd
79544 www 18 0 5300K 4584K lockf 0 0:35 0.00% 0.00% httpd
80731 www 2 0 5184K 4488K sbwait 1 0:35 0.00% 0.00% httpd
80748 www 2 0 5168K 4536K sbwait 1 0:35 0.00% 0.00% httpd
85255 www 18 0 5176K 4544K lockf 0 0:26 0.00% 0.00% httpd
154 root 2 0 1256K 884K select 1 0:26 0.00% 0.00% sshd1
147 root 10 0 968K 736K nanslp 0 0:07 0.00% 0.00% cron
150 root 2 0 2484K 2036K select 0 0:06 0.00% 0.00% sendmail
124 root 2 0 924K 612K select 1 0:05 0.00% 0.00% syslogd
95582 www 2 0 5244K 4604K sbwait 1 0:04 0.00% 0.00% httpd
95470 www 2 0 5068K 4368K sbwait 1 0:04 0.00% 0.00% httpd
98534 www 2 0 5076K 4432K sbwait 0 0:01 0.00% 0.00% httpd
194 root 2 0 1236K 888K select 0 0:01 0.00% 0.00% sshd1
This seems to happen slowly, until it reaches about 20M Free, upon which I tend
to reboot.
Any ideas? I thought that perhaps as inactive memory is still available to the
system if needed that it might be okay to leave it, but a explanation may put my
heart at rest..
Rob.
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