Thursday, March 8, 2012

AWE Memory

I am finding conflicting opinions on how to monitor memory bottlenecks on AW
E
enabled systems. Can anyone provide any meaningfull info? I am aware of al
l
the related performance counters. Howeve,r I do not know which one are stil
l
usefull once AWE is enabled. Also what are the accepable values for the AWE
counters?
Oscar ElleseffThe PageLifeExpentancy and CacheHitRatio counters are still very valid and
most useful for determining if you have memory pressure.
Andrew J. Kelly SQL MVP
"Oscar" <Oscar@.discussions.microsoft.com> wrote in message
news:5B77575A-EE3C-41E5-8971-7436ADD59C37@.microsoft.com...
>I am finding conflicting opinions on how to monitor memory bottlenecks on
>AWE
> enabled systems. Can anyone provide any meaningfull info? I am aware of
> all
> the related performance counters. Howeve,r I do not know which one are
> still
> usefull once AWE is enabled. Also what are the accepable values for the
> AWE
> counters?
> Oscar Elleseff|||Thank You Andrew,
What about AWE specific counters? How can they be used to evaluate memory
pressure? For example, does 'AWE lookup/maps sec' have any applications in
this case and if it does what are the values we should be looking for?
Oscar Elleseff
"Andrew J. Kelly" wrote:

> The PageLifeExpentancy and CacheHitRatio counters are still very valid and
> most useful for determining if you have memory pressure.
> --
> Andrew J. Kelly SQL MVP
>
> "Oscar" <Oscar@.discussions.microsoft.com> wrote in message
> news:5B77575A-EE3C-41E5-8971-7436ADD59C37@.microsoft.com...
>
>|||If there is memory pressure in AWE or physical memory it will show up in the
counters mentioned. The AWE specific counters may be useful for some very
specific troubleshooting but you will see memory pressure first in the PLF &
CacheHit Ratio counters.
Andrew J. Kelly SQL MVP
"Oscar" <Oscar@.discussions.microsoft.com> wrote in message
news:C1B1A04D-ED6E-4306-8510-5D51D4E959A2@.microsoft.com...[vbcol=seagreen]
> Thank You Andrew,
> What about AWE specific counters? How can they be used to evaluate memory
> pressure? For example, does 'AWE lookup/maps sec' have any applications
> in
> this case and if it does what are the values we should be looking for?
> Oscar Elleseff
> "Andrew J. Kelly" wrote:
>

No comments:

Post a Comment