Bill Moran wrote:
In response to Per olof Ljungmark <[email protected]>:
Dan Nelson wrote:
In the last episode (Sep 01), Bill Moran said:
In response to Per olof Ljungmark <[email protected]>:
What is a good way to find out how memory is used? Have a 6.4 box where
memory is used by something but I fail to see what is using it - tried
different switches to ps(1), tried the stat tools but a big chunk of
memory does not show at all.
A proper tool for analyzing memory usage "live", this is a production
box?
I've always been able to get what I need from top. You can do -o res to
sort by resident memory usage, which helps.
ps will sort by memory usage when given the -m flag. Also check ipcs -a to
see if there are any sysv shared memory segments hanging arnound. If you
don't see anything using the memory, where are you seeing that "something"
is using it?
...and here is top output after I stopped Postfix, slapd and Cyrus-IMAP.
Still over 3G Active.
<snip>
You did not sort by res and there are only 40 processes showing, which
means your output is truncated and may have truncated the problematic
process.
Please use "top -o res" to get the output sorted by memory usage, or
don't truncate the output (former preferred).
Also, please provide the output of "ipcs -a"
There was no more processes...
ipcs -a
Message Queues:
T ID KEY MODE OWNER GROUP CREATOR
CGROUP CBYTES QNUM QBYTES
LSPID LRPID STIME RTIME CTIME
Shared Memory:
T ID KEY MODE OWNER GROUP CREATOR
CGROUP NATTCH SEGSZ CPID LPID ATIME
DTIME CTIME
Semaphores:
T ID KEY MODE OWNER GROUP CREATOR
CGROUP NSEMS OTIME CTIME
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