Re: Memory usage for Domino

Hi Rob, your NSF buffer stats from your previous post look great. For
faulting rates, I wouldn't use the platform stats. I find they are not
very accurate as faulting rates can be high as a server is starting,
making the stats unreliable. I prefer to use a graphical performance
monitor which is part of the System i Navigator (Management Central ->
Monitors -> System). It gives you a much better idea what your faulting
rates really are in the memory pools where Domino is running. Below is an
example:



This was on a 1-way processor before I tuned the customer's environment.
They were way above the recommended guideline of 100 faults/second per
processor. I always select the user pool faults maximum metric so I don't
get washed out data.

Hope this helps.

Kim
--------
President
Kim Greene Consulting, Inc.
iSeries Domino consulting, education, and performance
www.kimgreene.com
www.bleedyellow.com/blogs/dominodiva
twitter.com/iseriesdomino
(507) 367-2888



From: rob@xxxxxxxxx
To: Lotus Domino on the iSeries / AS400 <domino400@xxxxxxxxxxxx>
Date: 07/25/2011 08:08 AM
Subject: Re: Memory usage for Domino
Sent by: domino400-bounces+kim=kimgreene.com@xxxxxxxxxxxx



Thank you Walter.

In my Admin (we're a daos shop) if I sort by "Logical Size" the largest
mail file is 6.2GB. It's physical size is only 42MB. The view indexes
of this database consume 5 MB of disk space, which is 0% of the entire
space used by this database.
The largest physical file is 624MB and it's logical size is 1.3GB. The
view indexes of this database consume 85 MB of disk space, which is 7% of
the entire space used by this database.
The median physical file is 51MB. The view indexes of this database
consume 13 MB of disk space, which is 4% of the entire space used by this
database.
The median logical size is 240MB. The view indexes of this database
consume 7 MB of disk space, which is 3% of the entire space used by this
database.
13MB x 2 x 400 users = 10.4GB?

We archive mail that is over 6 months old. We put no size or other type
restrictions. We've brought that up to management but their concern was
that a major customer might send us a drawing and we wouldn't want to
reject it (how big do we need to make the check for the disk drives?).

We have 453 mail files. It's 9am here. Which is only 7am in Mexico and
Texas where an additional significant percentage of our users are.
Mem.MaxSharedMemory_MB = 4080
Mem.PhysicalRAM = 54,760,833,024
Mem.PhysicalRAM_MB = 52224
Platform.Memory.FaultsPerSec = 305.3
Platform.Memory.FaultsPerSec.Avg = 374.6
Platform.Memory.FaultsPerSec.Peak = 20,326.6
Platform.Memory.PagesPerSec = 4,779.3
Platform.Memory.PagesPerSec.Avg = 3,223.4
Platform.Memory.PagesPerSec.Peak = 326,166.7
Platform.Memory.RAM.TotalMBytes = 16,789.6
Platform.Memory.WaitToIneligible = 0
Server.Users = 391
Server.Users.Active15Min = 219
Server.Users.Active1Min = 82
Server.Users.Active30Min = 262
Server.Users.Active3Min = 119
Server.Users.Active5Min = 153
Server.Users.Peak = 392
Server.Users.Peak.Time = 07/25/2011 08:56:45 EDT


Rob Berendt