High Load

Michele Neylon :: Blacknight Solutions michele at BLACKNIGHTSOLUTIONS.COM
Tue Apr 27 01:05:19 IST 2004


When we had a serious load issue we found that upgrading everything possible
made a difference. Even some of the Perl modules in use might have made a
difference. We're now tweaking it all bit by bit to reduce load where
possible.
There are a couple of handy tips in the MAQ that might help if you haven't
looked there already

Mr Michele Neylon
Blacknight Internet Solutions Ltd
http://www.blacknight.ie/
Tel. +353 59 9137101

-----Original Message-----
From: MailScanner mailing list [mailto:MAILSCANNER at JISCMAIL.AC.UK] On Behalf
Of Mike Kercher
Sent: 27 April 2004 00:03
To: MAILSCANNER at JISCMAIL.AC.UK
Subject: Re: [MAILSCANNER] High Load

I ended up turning Spam Checks off for some of the domains that I'd rather
not even be hosting.  Maybe this will be the spur they needed to move along
:)

After doing so, load is back down below 1.00  After upgrading to the latest
stable, it did reach over 100 and my box was crawling!!!

Mike


> -----Original Message-----
> From: MailScanner mailing list
> [mailto:MAILSCANNER at JISCMAIL.AC.UK] On Behalf Of Daniel Kleinsinger
> Sent: Monday, April 26, 2004 5:23 PM
> To: MAILSCANNER at JISCMAIL.AC.UK
> Subject: Re: High Load
>
> Have you tried Debug Mode?
> Debug = yes
> Debug SpamAssassin = yes
> and see what it logs.  Check the archives for more detailed
> Debug instructions.
>
> Stopping MailScanner makes the load go down immediately?
>
> Daniel
>
> Mike Kercher wrote:
>
> > Welp...I just upgraded to the latest stable and load is at 22 now!
> >
> > Mike
> >
> >
> > > -----Original Message-----
> > > From: MailScanner mailing list
> > > [mailto:MAILSCANNER at JISCMAIL.AC.UK] On Behalf Of Kevin Miller
> > > Sent: Monday, April 26, 2004 4:05 PM
> > > To: MAILSCANNER at JISCMAIL.AC.UK
> > > Subject: Re: High Load
> > >
> > > I think I skipped that one.  Feel like upgrading to the newest
> > > stable?  Not sure when the performance issue was wrestled to the
> > > ground...
> > >
> > > ...Kevin
> > > --
> > > Kevin Miller                Registered Linux User No: 307357
> > > CBJ MIS Dept.               Network Systems Administrator, Mail
> > > Administrator
> > > 155 South Seward Street     ph: (907) 586-0242
> > > Juneau, Alaska 99801        fax: (907 586-4500
> > >
> > >
> > > >-----Original Message-----
> > > >From: Mike Kercher [mailto:mike at CAMAROSS.NET]
> > > >Sent: Monday, April 26, 2004 1:02 PM
> > > >To: MAILSCANNER at JISCMAIL.AC.UK
> > > >Subject: Re: High Load
> > > >
> > > >
> > > >I am 4.29.3-1
> > > >
> > > >> -----Original Message-----
> > > >> From: MailScanner mailing list
> > > >> [mailto:MAILSCANNER at JISCMAIL.AC.UK] On Behalf Of Kevin Miller
> > > >> Sent: Monday, April 26, 2004 3:59 PM
> > > >> To: MAILSCANNER at JISCMAIL.AC.UK
> > > >> Subject: Re: High Load
> > > >>
> > > >> Are you on 4.28-?  I was seeing large loads until I
> went to 4.29-7.
> > > >>
> > > >> HTH...
> > > >>
> > > >> ...Kevin
> > > >> --
> > > >> Kevin Miller                Registered Linux User No: 307357
> > > >> CBJ MIS Dept.               Network Systems Administrator, Mail
> > > >> Administrator
> > > >> 155 South Seward Street     ph: (907) 586-0242
> > > >> Juneau, Alaska 99801        fax: (907 586-4500
> > > >>
> > > >>
> > > >> >-----Original Message-----
> > > >> >From: Mike Kercher [mailto:mike at CAMAROSS.NET]
> > > >> >Sent: Monday, April 26, 2004 12:52 PM
> > > >> >To: MAILSCANNER at JISCMAIL.AC.UK
> > > >> >Subject: High Load
> > > >> >
> > > >> >
> > > >> >I'm seeing a HUGE load on my system and I can't
> figure out why.
> > > >> >
> > > >> > 14:47:00  up 46 min,  3 users,  load average: 13.43, 14.25,
> > > >> >10.73
> > > >> >102 processes: 87 sleeping, 12 running, 3 zombie, 0 stopped
> > > >> >CPU states:  75.6% user  24.3% system   0.0% nice   0.0%
> > > >> >iowait   0.0% idle
> > > >> >Mem:  1022796k av,  915824k used,  106972k free,       0k
> > > >> >shrd,   43448k
> > > >> >buff
> > > >> >                    522344k actv,  197376k in_d,  127288k in_c
> > > >> >Swap: 2048276k av,   31672k used, 2016604k free
> > > >> >  441600k
> > > >> >cached
> > > >> >
> > > >> >  PID USER     PRI  NI  SIZE  RSS SHARE STAT %CPU %MEM   TIME
> > > >> >CPU COMMAND
> > > >> > 9837 root      15   0 14808  952   820 S    68.5
> 0.0   3:25   0
> > > >> >MailScanner
> > > >> >15534 hbaldera  23   0     0    0     0 Z     0.7  0.0   0:00
> > > >> > 0 cucipop
> > > >> ><defunct>
> > > >> > 3095 root      15   0   236  204   156 R     0.3  0.0   0:01
> > > >> > 0 syslogd
> > > >> > 3195 named     25   0  6608 6412  1348 S     0.3  0.6
> > > >> 0:20   0 named
> > > >> > 7400 root      15   0  1008 1008   688 R     0.3  0.0
> > > >0:04   0 top
> > > >> >15533 c.wilson  21   0     0    0     0 Z     0.3  0.0   0:00
> > > >> > 0 cucipop
> > > >> ><defunct>
> > > >> >15538 root      20   0  2708 2404  1868 R     0.3  0.2   0:00
> > > >> > 0 sendmail
> > > >> >   15 root      15   0     0    0     0 SW    0.1  0.0   0:01
> > > >> > 0 kjournald
> > > >> >13900 root      20   0   592  592   476 S     0.1  0.0   0:00
> > > >> > 0 cucipop
> > > >> >15495 root      17   0  3124 3000  2004 R     0.1  0.2   0:00
> > > >> > 0 sendmail
> > > >> >15513 root      20   0  3160 3156  2264 D     0.1  0.3   0:00
> > > >> > 0 sendmail
> > > >> >    1 root      17   0   156  128   100 S     0.0  0.0
> > > >> 0:05   0 init
> > > >> >    2 root      15   0     0    0     0 SW    0.0  0.0   0:00
> > > >> > 0 keventd
> > > >> >    3 root      15   0     0    0     0 SW    0.0  0.0
> > > >> 0:00   0 kapmd
> > > >> >    4 root      34  19     0    0     0 SWN   0.0
> 0.0   0:00   0
> > > >> >ksoftirqd_CPU0
> > > >> >    9 root      25   0     0    0     0 SW    0.0  0.0   0:00
> > > >> > 0 bdflush
> > > >> >    5 root      15   0     0    0     0 SW    0.0  0.0   0:00
> > > >> > 0 kswapd
> > > >> >    6 root      15   0     0    0     0 SW    0.0  0.0   0:00
> > > >> > 0 kscand/DMA
> > > >> >    7 root      16   0     0    0     0 SW    0.0
> 0.0   0:03   0
> > > >> >kscand/Normal
> > > >> >    8 root      15   0     0    0     0 SW    0.0
> 0.0   0:02   0
> > > >> >kscand/HighMem
> > > >> >   10 root      15   0     0    0     0 SW    0.0  0.0   0:00
> > > >> > 0 kupdated
> > > >> >   11 root      25   0     0    0     0 SW    0.0
> 0.0   0:00   0
> > > >> >mdrecoveryd
> > > >> >   73 root      25   0     0    0     0 SW    0.0  0.0
> > > >> 0:00   0 khubd
> > > >> > 2808 root      19   0     0    0     0 SW    0.0  0.0   0:00
> > > >> > 0 kjournald
> > > >> > 3045 root      15   0     0    0     0 SW    0.0  0.0
> > > >> 0:00   0 eth0
> > > >> > 3099 root      23   0    52    4     0 S     0.0  0.0
> > > >> 0:00   0 klogd
> > > >> > 3209 root      15   0   288   64    48 S     0.0  0.0
> > > >> 0:00   0 sshd
> > > >> > 3223 root      15   0   448  304   296 S     0.0  0.0   0:00
> > > >> > 0 xinetd
> > > >> > 3228 root      15   0   888  600   516 S     0.0  0.0
> > > >> 0:00   0 bash
> > > >> > 3229 root      15   0   932  644   560 S     0.0  0.0
> > > >> 0:00   0 bash
> > > >> > 3313 root      25   0   160    4     0 S     0.0
> 0.0   0:00   0
> > > >> >safe_mysqld
> > > >> > 3344 mysql     16   0  2564 2200  1220 S     0.0  0.2   0:19
> > > >> > 0 mysqld
> > > >> > 3406 nobody    15   0   568  124    68 S     0.0  0.0   0:00
> > > >> > 0 proftpd
> > > >> > 3447 root      15   0  5080 1412   884 S     0.0  0.1
> > > >> 0:10   0 httpd
> > > >> > 3472 smmsp     15   0  1412 1380   772 S     0.0
> 0.1   0:02   0
> > > >> >milter-sender
> > > >> > 3491 root      15   0   436  436   364 S     0.0  0.0
> > > >> 0:00   0 crond
> > > >> > 3508 root      15   0  3136 3116   968 S     0.0  0.3   0:00
> > > >> > 0 poprelayd
> > > >> >
> > > >> >This is a P4 2.0Ghz with a gig of RAM.  My CPU hogs seem to
> > > >> be MS and
> > > >> >cucipop.  My load is getting pushed up to 19+ and
> sendmail stops
> > > >> >accepting connections at that point.  Anyone else having
> > > any similar
> > > >> >issues?  Pointers gladly accepted!
> > > >> >
> > > >> >Mike
> > > >> >
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> > > >> >
> > > >>
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