1 Topic by oleg

  • oleg
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  • Registered: 2013-09-15
  • Posts: 4

Topic: use 90% of CPU

==== Required information ====
- iRedMail version: 0.8.7
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): MySQL
- Linux/BSD distribution name and version: 7.4
- Related log if you're reporting an issue:
====
Hello,
this processes use 90% of CPU very often: 

www-data  9125 76.1  0.5  40612 23344 ?        RN   05:10   0:27 perl /usr/share/doc/awstats/examples/maillogconvert.pl standard
www-data  9119 12.6  0.3  40512 15264 ?        RN   05:10   0:04 /usr/bin/perl /usr/lib/cgi-bin/awstats.pl -config=smtp -update

also this processes use CPU very hard:

amavis   25248  2.5  1.8 238128 75276 ?        S    05:36   0:05 /usr/sbin/amavisd-new (ch17-avail)

Have any documents about configure iRedMail for minimaze use CPU ?
Thank you

----

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2 Reply by ZhangHuangbin

  • ZhangHuangbin
  • ZhangHuangbin
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  • Registered: 2009-05-06
  • Posts: 31,088

Re: use 90% of CPU

oleg wrote:

www-data  9125 76.1  0.5  40612 23344 ?        RN   05:10   0:27 perl /usr/share/doc/awstats/examples/maillogconvert.pl standard
www-data  9119 12.6  0.3  40512 15264 ?        RN   05:10   0:04 /usr/bin/perl /usr/lib/cgi-bin/awstats.pl -config=smtp -update

These two are Awstats cron job to update analytics. If you don't need Awstats, you can disable them in root's cron job.

oleg wrote:

also this processes use CPU very hard:
amavis   25248  2.5  1.8 238128 75276 ?        S    05:36   0:05 /usr/sbin/amavisd-new (ch17-avail)

This is Amavisd, it will invoke SpamAssassin and ClamAV for spam/virus scanning. If you don't have much memory, it's ok to reduce the concurrent Amavisd processes by decreasing value in its parameter "$max_servers", and don't forget to update the process number in Postfix /etc/postfix/master.cf for transport 'smtp-amavis', it must be the same as '$max_servers'.

3 Reply by oleg

  • oleg
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  • Registered: 2013-09-15
  • Posts: 4

Re: use 90% of CPU

Thank you, ZhangHuangbin!