Re: Profiling an app shows lots of blocked worker threads
Re: Profiling an app shows lots of blocked worker threads
- Subject: Re: Profiling an app shows lots of blocked worker threads
- From: Chuck Hill <email@hidden>
- Date: Wed, 15 Aug 2007 10:10:28 -0700
On Aug 15, 2007, at 10:05 AM, Simon McLean wrote:
Hi -
I'm a beginner when it comes to profiling an app, so please bear
with the idiot questions :-)
The reason I'm digging into profiling is because we have a deadlock
problem.
I've started up the app using JProfiler and I can see various
threads running. The bit I'm concerned about is the sea of red
highlighting blocked worker threads. When I start the app about 2
thirds of the 16 running worker threads are already blocked, and
within a couple of minutes 15 of them are consistently blocked.
Despite this, the app seems to behave ok.
Should I be worried about this ?
That entirely depends on how they are blocked. You need the stack
traces. They could just be "blocked" waiting for request to come in
and give them something to work on.
Chuck
--
Practical WebObjects - for developers who want to increase their
overall knowledge of WebObjects or who are trying to solve specific
problems.
http://www.global-village.net/products/practical_webobjects
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