VSZ keeps on increasing as threads created and cancelled on rhel3.0

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Hi ,
We are observing that even though number of threads in the application is the same (rhel3.0) as the application has to create some threads and cancel them, eventually over a period of time the VSZ for the app. process increases. Why does the stack for the cleanly cancelled thread not get reused when a new thread is created ? I would expect that if the number of threads in use by the application is constant then thread creation and cancellation should not result in VSZ increasing over a period of time. Memory leak testing does not indicate any leaks.
thanks
Sameer

		
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<DIV>Hi ,</DIV>
<DIV>We are observing that even though number of threads in the application is the same (rhel3.0) as the application has to create some threads and cancel them, eventually over a period of time the VSZ for the app. process increases. Why does the stack for the cleanly cancelled thread not get reused when a new thread is created ? I would expect that if the number of threads in use by the application is constant then thread creation and cancellation should not result in VSZ increasing over a period of time. Memory leak testing does not indicate any leaks.</DIV>
<DIV>thanks</DIV>
<DIV>Sameer</DIV><p>
		<hr size=1><font face=arial size=-1>Do you Yahoo!?<br>Yahoo! Movies - <a href="http://movies.yahoo.com/showtimes/movie?mid=1808405861">Buy advance tickets for 'Shrek 2' </a>
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