MS Performance

[Plant, Dean]

Andrea Cogliati wrote:
> Mike Kercher wrote:
>
>> Agreed.  You might also consider moving your incoming to a tmpfs:
>>
>> /bin/mount -t tmpfs tmpfs /var/spool/MailScanner/incoming
>
> [...]
>
>> -----Original Message-----
>> From: [...] Martin Hepworth
>
> [...]
>
>> RAM, add more RAM. 128MB is kinda low, esp a you can get 512MB ram
>> for < 50 UK pounds (~75 Euro I guess)
>
>> Andrea Cogliati wrote:
>
>>> Guys,
>>>
>>> we did several stress tests on our MS gateway and these are the
>>> results.
>>>
>>> System description:
>>>
>>> Single Intel Pentium 4 1.8 GHz
>>> 128 MB RAM
>>> 40 GB single IDE disk
>>> MS 4.22-5
>>> SpamAssassin 2.55
>>> AV: McAfee and ClamAV
>>>
>>> With this system we are able to process about 100 messages/minute.
>>>
>>> We had to lower the number of MS children processes to 3, as with
>>> the default of 5 we got a lot of swapping (each MS process uses
>>> about 20MB of memory) and
>>> performance severely degraded. Increasing the number of messages per
>>> process to 75 also improved the overall performance a little bit.
>>>
>>> Does this make any sense? Can I improve the performances tuning the
>>> system configuration?
>>>
>>> TIA,
>>>
>>> Andrea
>
> Mike and Martin,
>
> Tried that but it doesn't seem to help. I've put another 128 MB of RAM
> to a total
> of 256MB. With or without tmpfs I can get a maximum of 1.72 scanned
> messages
> per second (103 msg/min). It seems to be a limit of the CPU and not of
> the RAM.
> Could someone confirm or confute this?
>
> Andrea

Im running a Pentium 3 700Mhz + 256MB ram on RH 8.0 sendmail/f-prot with
spamassassin 2.55, dcc and razor on a ext3 filesystem. Mailscanner processed
13.1K messages in 1 day. And a significant amount of that was during working
hours. (See pic)


--
Registered Office: Roke Manor Research Ltd, Siemens House, Oldbury, Bracknell,
Berkshire. RG12 8FZ

The information contained in this e-mail and any attachments is confidential to
Roke Manor Research Ltd and must not be passed to any third party without
permission. This communication is for information only and shall not create or
change any contractual relationship.

-------------- next part --------------
A non-text attachment was scrubbed...
Name: mail-week.png
Type: application/octet-stream
Size: 3003 bytes
Desc: not available
Url : http://lists.mailscanner.info/pipermail/mailscanner/attachments/20030709/20c63a8a/mail-week.obj