users@glassfish.java.net

Re: Debugging Glassfish CPU usage

From: <glassfish_at_javadesktop.org>
Date: Tue, 24 Mar 2009 03:37:55 PDT

Hi Jeanfrancois,

Could you clarify what you mean by "any web related call?"? In case it helps, we have anywhere from 500 - 900 users using the site during the "off-peak" times I mentioned before, compared to our "peak" times which range can reach 1600 concurrent users.

The Java version on the server is 1.6.0_07-b06. Though, it should be noted that our team runs Apple computers, so the development environment Java version is 1.5.0_16-b06-284. Even though the server is 64-bit, we are running the 32-bit jvm in mixed mode on the recommendation of Scott Oaks, who advised me when configuring glassfish last fall.

For thread dumps, see my reply to Kedar, above. I attached two jstack dumps, one from yesterday and one that just occurred. I have another from 2 days ago, but it was too large a file size to attach.

Thanks!
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