Hi Silas,

--On March 3, 2008 11:40:07 AM -0800 Silas Thomas <[EMAIL PROTECTED]> wrote:

> Attached are sample logs during high CPU usage on iCal open.

Yup looks like iCal is making way too many PROPFINDs and the server is 
having a hard time keeping up. When the server starts up those PROPFINDs 
are executing in about 30 ms which is about right. But after a while the 
time starts to increase a lot, in the worse case taking over 6 seconds. 
That seems to start happening when the number of requests per second 
increases (gets as high as 40+ per second). In theory we should be able to 
cope with that particularly on a 4-core system so we need to analyze this 
some more.

Right now if you want to have a usable system you are going to have to 
restrict the number of delegates that people setup because that is causing 
iCal to do all those PROPFINDs.

-- 
Cyrus Daboo

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