I would remove the cachedwithin or throw more memory into the machine.

For a high traffic site with 500 users, this will chew through memory very
fast and can be a performance boost, but not if you don't have enough memory
to do so.


Regards,
Andrew Scott
 
Quote of the Day:
Ned Flanders: Let's thank the Lord for another beautiful day.
Superintendent Chalmers: "Thank the Lord"? That sounded like a prayer. A
prayer in a public school! God has no place within these walls, just like
facts don't have a place within an organized religion!
-----Original Message-----
From: Draugas.lt [mailto:[EMAIL PROTECTED] 
Sent: Tuesday, 8 November 2005 7:21 AM
To: CF-Server
Subject: Mysterious lag on high memory usage

Hello,

I administrate a well visited website. RAM used by Coldfusion MX 6.1 rises
to 700-800 Mb during the rush-hour. There is a MAX
set to 1024 Mb.
 
The problem is when the memory usage reaches approximately 500 Mb Coldfusion
slows down greatly for a few secons every minute,
what can be seen in the traffic meter:

http://www.draugas.lt/jvm/memory.gif

When Coldfusion is restarted, everything works fine until the memory usage
gets to >500 Mb. The interesting fact is that when
the number of visitors drops down greatly, the memory usage decreases very
slowly and these Coldfusion lags remain.

"cachedwithin="#createtimespan(0,0,5,0)#"" is used a lot in the website. I
guess JVM doesn't clear the query cache.

Maybe anyone can help to solve the problem? Maybe there are JVM commands
which help to clear the query cache faster?

Povilas




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