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05098 - Page Faults - Anyway to reduce SAP Storage to Reduce Page Faults
Fill RESBD Structure from EBP Component Structure BAL Application Log DocumentationThis documentation is copyright by SAP AG.
Page Faults - Anyway to reduce SAP Storage to Reduce Page Faults
Hi,the amount of memory depends on the usage of the DB-server. Do you run
workload on the DB-server or don't you run workload at all there ?
Normally a bit oversized buffers or EM don't increase the page-faults as
this is then not used as well and paged out.
Could you send over a screenshot of ST02 on the DB-server after a few days
running ?
Regards
Volker
> -----Original Message-----
> From: bfbray [mailto:blakebrayZp...]
> Sent: Montag, 18. Februar 2002 17:06
> To: DoNotReply@consolut.eu
> Subject: Page Faults - Anyway to reduce SAP Storage to
> Reduce Page Faults
>
>
> Our DB Server is a 9406-730 with 13gig memory. We have all users
> logging on to two app servers, we try not to have any users on the DB
> server. Our DB server 3 memory pools, *Machine=1gig, *base=11.9gig,
> *spool=.1gig. We basically have 12gig in *BASE which runs SAP. Our
> Non-DB page faults average 200-400 per second (via wrksyssts) and
> will sometimes peak 1000-2000 per second. I've read in various notes
> and manuals that the SAP memory definitions such as Program Buffer,
> Paging Area, Extended Memory, Number of WP's do not affect System
> Performance. Is this a true or did I just misunderstand what I've
> seen? Are there SAP buffers or other setting which I may have
> oversized and is causing the high Non-DB page faults? The sizing
> tools we've used indicates 12gig should enough. Before we go and
> purchase more memory we'd like to know if something can be cahnged to
> reduce the amount of memory we are currently using. How much memory
> are others running on the DB server?
>
>
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