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Kirk, you're right! The MinFreeRatio and MaxFreeRatio do result in
an<br>
initiating occupancy as you describe. Does seem like a concurrent<br>
collection should have started. <br>
<br>
<br>
On 3/1/2011 9:06 PM, Charles K Pepperdine wrote:
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cite="mid:C261E979-D033-4739-8BAA-3E8A6C34E623@kodewerk.com"
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<div>Hi Jon,</div>
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cite="mid:919F96FA-E09E-47BA-819C-0DFF2D9CF5F9@kodewerk.com"
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I don't see CMSInitiatingOccupancyFraction on the command
line.<br>
<h4>-Xmx896m -Xss128k -XX:NewSize=384M -XX:MaxPermSize=96m
-XX:+UseParNewGC -XX:+UseConcMarkSweepGC</h4>
so CMS isn't using occupancy of the tenured gen to start a
cycle. That is the<br>
default behavior.<br>
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<div>Ok, I'm trying to understand what you are saying. It was my
understanding that CMS is initiated when tenured reaches a value
of 68% = current occupancy + the anticipated promotions. So are
you saying that setting the initiating occupancy fraction
doesn't override that value, it completely changes how CMS is
triggered? Is the flag UseCMSInitiatingOccupancyOnly only valid
when you use CMSInitiatingOccupancyFraction or does that flag
also use anticipated promotions as part of it's calculation?</div>
<div><br>
</div>
<div>TIA,</div>
<div>Kirk</div>
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