Memory Usage

[Rick Cooper]

> -----Original Message-----
> From: MailScanner mailing list [mailto:MAILSCANNER at JISCMAIL.AC.UK]On
> Behalf Of Rob Burtelow
> Sent: Wednesday, March 31, 2004 11:58 AM
> To: MAILSCANNER at JISCMAIL.AC.UK
> Subject: Memory Usage
>
>
> I'm running MailScanner on a RedHat ES 3 box and having problems with
> really high memory usage, almost to the point of running out.  The
> machine is an HP 4cpu 2.5ghz xeon box, with 4 GB of ram.  Here is the
> output from free:
>
>              total       used       free     shared    buffers     cached
> Mem:          3621       3399        221          0        278       2731
> -/+ buffers/cache:        389       3231
> Swap:          529          0        529

You need to google up a Linux cache tutorial. You have a bucket full of ram
free (aprox 89%). You need to look at the cache side and then the -/+
buffers/cache to see available ram (3231) and note you have zero swap used.
Linux doesn't handle or report memory the same as MickeySoft does.

Rick
>
> The free memory keeps dropping and I'm afraid that its gonna run out and
> eventually crash.  I tried restarting MailScanner several times to see
> if it would free up some memory, it would free up about 100MB then start
> dropping again.  When I run `top` MailScanner is the only process really
> showing up as using any ram, but it is a small amount.  I did some
> searching through the archives and found some old memory problems in
> earlier versions, but nothing this new.
>
> I had the concurrent processes sent to 10, moved it down to 8, then down
> to 5, and haven't seen a change so far.  The machine does a lot of mail,
> but our old box which we replace last week handled it all on a dual 800
> with only 512 of RAM.  Has anyone else experienced any sort of memory
> leak in mailscanner-4.28.6-1 ?
>
> --
> Thanks,
>
> Rob Burtelow
> Linux Administrator
>
> --
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