(I'm not a member of the list; please Cc me on any replies.)
We're running Apache 1.3.28 on a 5.1-RELEASE machine. It's a Dell PE 2650
w/ 2GB RAM. The site contains a lot of large files (multi-megabyte) -
otherwise there's nothing unusual running.
The Active memory use, according to top, seems rather high:
last pid: 21487; load averages: 0.19, 0.33, 0.32 up 2+16:45:20 15:52:21
76 processes: 1 running, 75 sleeping
CPU states: 0.5% user, 0.0% nice, 4.0% system, 1.4% interrupt, 94.2% idle
Mem: 1413M Active, 187M Inact, 299M Wired, 93M Cache, 112M Buf, 2632K Free
Swap: 1024M Total, 21M Used, 1003M Free, 2% Inuse
We can't seem to get the Active number down much, even after stopping
Apache it still stays around 1100M. There's no shared memory in use, and
nothing in vmstat -m seems to indicate where the "missing" memory is. top,
sorting by "size", does not indicate anything unusual either.
sysctl vm.vmtotal says:
System wide totals computed every five seconds: (values in kilobytes)
Processes: (RUNQ: 1 Disk Wait: 0 Page Wait: 0 Sleep: 76)
Virtual Memory: (Total: 8172K, Active 636472K)
Real Memory: (Total: 2051312K Active 389176K)
Shared Virtual Memory: (Total: 16436K Active: 11760K)
Shared Real Memory: (Total: 6004K Active: 4436K)
Free Memory Pages: 79228K
whereas on other servers, the Real Memory "Active" number seems to match
the one found in top, on this one it is about 1GB lower.
A similar machine running Apache on 5.1-R, generally serving smaller
files, has the same problem in a smaller scale (about 640M even when
Apache is stopped).
Are there any other data that I should send to help diagnose this problem,
or any programs I can run to try and track this stray memory use down?
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