On Nov 9, 2007, at 2:42 PM, Sie, Yang wrote:
Hello David:
Now I am able to monitor the memory usage of jetspeed cache objects.
However, I have some concerns about the size of the cache.
After 14 people tested for half an hour. The preferencesCache ends up
like 9M. I am surprised to that number comparing to all the data cache
we stored for portlet which was only 923K (we didn't use Jetspeed
content cache, we created our own content cache if you wonder where I
got 923K). Any idea why the preferencesCache number is so high? I
didn't
seem to see any plateau when the load test was performing. The
preferencesCache just kept growing. Is that normal? BTW,other jetspeed
cache objects are very small.
Total Number of Cache Objects in jetspeed: 6
CacheName MemoryStoreSize InMemorySize
portletDefinitionNameCache 62 119838
portletApplicationNameCache 2 2991
portletApplicationOidCache 2 0
portletDefinitionOidCache 62 0
portletContentCache 0 0
preferencesCache 5591 9094113
I imagine its because the Java Preferences impl loads quite a lot of
objects
Will investigate this one in more detail and get back to you
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