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Home > Archive > Microsoft Content Management Server > July 2005 > poor performance
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| norys sandoval 2005-07-29, 5:55 pm |
| I have a production server with 2 sites, one is a read only site and the
other one is a read write site for authoring. The SQL server is in separate
server. The CMS is configured to map hostheader to channels and the node
cache is 2000 (default value). The actual number of nodes is 1524.
Sometimes the both sites experiment a slow response, it is random, no
specific page nor template and in diferent moment of the day. I get a SQL
profiler in the moment that the site is slow and register several CMS
queries, as if the cache had been flushed. Why? Is it for the content
update? How CMS clear the cache... is differential or complete when a page
changes?
thxs.
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| Spencer Harbar [MVP] 2005-07-30, 2:48 am |
| Yoy may be experiencing this due to Process Recycling on IIS. This dumps the
cache.
http://download.microsoft.com/downl...6a/MCMS+2002+-+(complete)+FAQ.htm#484F5EA6-45B5-4066-808C-60D3722BC9AF
hth
Spence
www.mcmsfaq.com
"norys sandoval" <noryssandoval@discussions.microsoft.com> wrote in message
news:6FF144E6-CA12-446C-BA6F-451F10F35E40@microsoft.com...
>I have a production server with 2 sites, one is a read only site and the
> other one is a read write site for authoring. The SQL server is in
> separate
> server. The CMS is configured to map hostheader to channels and the node
> cache is 2000 (default value). The actual number of nodes is 1524.
> Sometimes the both sites experiment a slow response, it is random, no
> specific page nor template and in diferent moment of the day. I get a SQL
> profiler in the moment that the site is slow and register several CMS
> queries, as if the cache had been flushed. Why? Is it for the content
> update? How CMS clear the cache... is differential or complete when a
> page
> changes?
>
> thxs.
| |
|
| Sounds like you're authoring against the "production"server. If so,
this will have some impact on site performance, since authoring will
require a cache flush.
That aside, could you provide more specifics on the construction of
your site? Performance of a site is multi-dimensional and not solely
dependent on one aspect of the environment; while certain environmental
conditions may contribute more dramatically to performance, it's
usually a combination of things. Any additional detail will help.
Shawn
| |
| Stefan [MSFT] 2005-07-30, 5:49 pm |
| Hi Shawn,
authoring will not do a cache flush.
If authoring is done on the production server itself the cache item being
updated is refreshed automatically during save.
If the authoring is done against a different server connected to the same
database then the updated item will be reloaded from the database after 6
seconds latest.
But only the updated items will be reloaded and only if they are requested
on the production server.
I think Spencers assumption with recycling is pointing in the right
direction as this is the only reason for a cache flush - except if someone
clicked on the "clear memory cache" button in the SCA.
Cheers,
Stefan
--
This posting is provided "AS IS" with no warranties, and confers no rights
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----------------------
"Shawn" <shawn_shell@consejoinc.com> wrote in message
news:1122754150.079216.93710@o13g2000cwo.googlegroups.com...
> Sounds like you're authoring against the "production"server. If so,
> this will have some impact on site performance, since authoring will
> require a cache flush.
>
> That aside, could you provide more specifics on the construction of
> your site? Performance of a site is multi-dimensional and not solely
> dependent on one aspect of the environment; while certain environmental
> conditions may contribute more dramatically to performance, it's
> usually a combination of things. Any additional detail will help.
>
> Shawn
>
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