Mailing List CGatePro@mail.stalker.com Message #93116
From: Martin.Hepworth <martinh@solidstatelogic.com>
Subject: RE: Slow outlook sometimes
Date: Tue, 06 Nov 2007 19:32:02 +0000
To: CommuniGate Pro Discussions <CGatePro@mail.stalker.com>
X-Mailer: CommuniGate Pro MAPI Connector 1.2.12/1.2.12
Andy

Err that's

Unused ram is wasted ram ;-)

--
Martin Hepworth
Snr Systems Administrator
Solid State Logic
Tel: +44 (0)1865 842300

> -----Original Message-----
> From: CommuniGate Pro Discussions [mailto:CGatePro@mail.stalker.com] On
> Behalf Of Andy Kunkle
> Sent: 06 November 2007 19:29
> To: CommuniGate Pro Discussions
> Subject: Re: Slow outlook sometimes
>
> No problem.
>
> One interesting thing I realized is that when I run a top of the machine
> it's using almost all of the RAM. Check it out..
>
> top - 14:28:41 up 43 days,  5:15,  1 user,  load average: 2.35, 1.99, 1.01
> Tasks: 139 total,   2 running, 137 sleeping,   0 stopped,   0 zombie
> Cpu(s):  0.0%us,  0.0%sy,  0.0%ni, 99.9%id,  0.0%wa,  0.0%hi,  0.0%si,
> 0.0%st
> Mem:   8177484k total,  7925636k used,   251848k free,   189996k buffers
> Swap:  6289320k total,      180k used,  6289140k free,  7083852k cached
>
> Pretty crazy. And this machine has 8GB of RAM, 2 Quad core Xeon
> processors.
>
>
> Andy Kunkle
> IT Administrator
> AIM Engineering & Surveying, Inc.
> 5300 Lee Blvd
> Lehigh Acres, FL 33971
> 239-332-4569
>
>
> > -----Original Message-----
> > From: CommuniGate Pro Discussions [mailto:CGatePro@mail.stalker.com] On
> > Behalf Of Martin.Hepworth
> > Sent: Tuesday, November 06, 2007 2:18 PM
> > To: CommuniGate Pro Discussions
> > Subject: Re: Slow outlook sometimes
> >
> > Andy
> >
> > Thanks for this
> >
> > I already got my  imap channels set to lots - got this the first day of
> > going live!
> >
> > I do my spam/virus on a separate gateway machine, so that's OK.
> >
> > Drives are SCSI I think - I'll check the SAR stuff though - why didn't
> > I think of that ;-)
> >
> > --
> > Martin Hepworth
> > Snr Systems Administrator
> > Solid State Logic
> > Tel: +44 (0)1865 842300
> > > -----Original Message-----
> > > From: CommuniGate Pro Discussions [mailto:CGatePro@mail.stalker.com]
> > On
> > > Behalf Of Andy Kunkle
> > > Sent: 06 November 2007 19:04
> > > To: CommuniGate Pro Discussions
> > > Subject: Re: Slow outlook sometimes
> > >
> > > I have just about the same setup and I'm working through tweaking my
> > > server now. The one thing I can suggest is changing the number of
> > Channels
> > > for IMAP to a number greater than the number of accounts you have.
> > With
> > > 8GB of RAM your machine shouldn't have a problem with this. It was
> > set to
> > > 50 (meaning 50 listeners at a time) by default which was denying
> > access to
> > > some users, and causing them to go offline and just generally causing
> > > havoc on the system.
> > >
> > >
> > >
> > > You can find that setting under Settings > Domain > Access > IMAP >
> > > Channels
> > >
> > >
> > >
> > > I set mine to 300.
> > >
> > >
> > >
> > > The other thing to look at is whether you are scanning incoming
> > messages
> > > for SPAM or viruses. These programs are hogs and depending on the
> > number
> > > of messages you get in an hour, they could be slowing things down as
> > well.
> > > I suggest upping the Enqueuer and Dequeuer numbers to at least 25
> > (mine is
> > > set to 50). This allows the server to process more messages at a
> > time. I
> > > also turned down the importance in the file system for cgpav and
> > cgpsa by
> > > typing the following into a shell window:
> > >
> > >
> > >
> > > ionice -c 2 `pidof spamd clamd`
> > >
> > >
> > >
> > > The other question I have is what type of hard drives are you using?
> > Are
> > > they SAS, SCSI, SATA? You can install sar (sysstat) and it will tell
> > you
> > > I/O information on your file system to see if you're hitting some
> > maximum
> > > limits of the system.
> > >
> > >
> > >
> > > Good luck.
> > >
> > >
> > >
> > > Andy Kunkle
> > >
> > > IT Administrator
> > >
> > > AIM Engineering & Surveying, Inc.
> > >
> > > 5300 Lee Blvd
> > >
> > > Lehigh Acres, FL 33971
> > >
> > > 239-332-4569
> > >
> > >
> > >
> > > From: CommuniGate Pro Discussions [mailto:CGatePro@mail.stalker.com]
> > On
> > > Behalf Of Massimo Bolzoni
> > > Sent: Tuesday, November 06, 2007 11:52 AM
> > > To: CommuniGate Pro Discussions
> > > Subject: Re: Slow outlook sometimes
> > >
> > >
> > >
> > >
> > >
> > > Il giorno 06/nov/07, alle ore 17:30, Martin.Hepworth ha scritto:
> > >
> > >
> > >
> > >
> > >
> > > Hi
> > >
> > >
> > >
> > >
> > >
> > > Hi Martin,
> > >
> > >
> > >
> > >
> > >
> > > We got a 5.1.12 64 bit linux with a raid 5 (8 disks) for the
> > > /var/Communigate area, based in the UK. Quad core Xeon and 8GB rAM.
> > > maildir for all accounts (over 160 users and potentially lots of
> > emails
> > > per user in come cases, not very many in others).
> > >
> > >
> > >
> > > Several users (about 12) esp in the NY office report the following
> > > issueson Outlook2003..(connected via MPLS WAN. some running on port
> > 143
> > > and some on 993)
> > >
> > >
> > >
> > > Slow opening/loading of Outlook program/messages
> > >
> > > Excessive time to send small messages
> > >
> > > Frequent lock ups of Outlook requiring Outlook quit/restart
> > >
> > > Slow access to Outlook folders
> > >
> > >
> > >
> > > also effects local users when out and about esp in far flung places
> > like
> > > Hong Kong.
> > >
> > >
> > >
> > > some are running 1.2.5 of the mapi and some newer versions up to
> > 1.2.12.
> > >
> > >
> > >
> > > The client side NEED to be the one released for the server one. So
> > Before
> > > anithing else patch the client to the last one available for the
> > 5.1.12
> > >
> > >
> > >
> > > The number of messages in inbox could affect the speed at the OL
> > startup
> > > but should no interfer afterward.
> > >
> > >
> > >
> > > HTH
> > >
> > >
> > >
> > > Massimo
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > > All users download the full message body and checks are made on all
> > > folders for new messages.
> > >
> > >
> > >
> > > network utilisation on the WAN shows lots of free bandwidth.
> > >
> > >
> > >
> > > I've done some TCP/IP tuning on the server and the client and this
> > seems
> > > to have help a little, but does any one have a methodology I can use
> > to
> > > try and overcome these issues in order to get better performance?.
> > >
> > >
> > >
> > > --
> > >
> > > Martin Hepworth
> > >
> > > Snr Sys Admin
> > >
> > > Solid State Logic
> > >
> > >
> > >
> > >
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> > >
> > > Red Lion 49 Ltd T/A Solid State Logic
> > >
> > > Registered as a limited company in England and Wales (Company
> > No:5362730)
> > >
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> > >
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> > Registered as a limited company in England and Wales
> > (Company No:5362730)
> > Registered Office: 25 Spring Hill Road, Begbroke, Oxford OX5 1RU,
> > United Kingdom
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**********************************************************************
Confidentiality : This e-mail and any attachments are intended for the
addressee only and may be confidential. If they come to you in error
you must take no action based on them, nor must you copy or show them
to anyone. Please advise the sender by replying to this e-mail
immediately and then delete the original from your computer.
Opinion : Any opinions expressed in this e-mail are entirely those of
the author and unless specifically stated to the contrary, are not
necessarily those of the author's employer.
Security Warning : Internet e-mail is not necessarily a secure
communications medium and can be subject to data corruption. We advise
that you consider this fact when e-mailing us.
Viruses : We have taken steps to ensure that this e-mail and any
attachments are free from known viruses but in keeping with good
computing practice, you should ensure that they are virus free.

Red Lion 49 Ltd T/A Solid State Logic
Registered as a limited company in England and Wales
(Company No:5362730)
Registered Office: 25 Spring Hill Road, Begbroke, Oxford OX5 1RU,
United Kingdom
**********************************************************************

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