jmx-dev RFR 8020467: Inconsistency between usage.getUsed() and isUsageThresholdExceeded() with CMS Old Gen pool

[Jaroslav Bachorik]

On 30.10.2013 17:30, Mandy Chung wrote:
>
> On 10/30/2013 4:23 AM, Jaroslav Bachorik wrote:
>> Ok. I've added a big object and an initial call to System.gc(). But
>> I'm leaving the calls to System.gc() right before checking the pools
>> as well - just to be sure.
>>
>> http://cr.openjdk.java.net/~jbachorik/8020467/webrev.04
>>
>
> The update looks okay and I think System.gc() at line 90 is no longer
> needed as the failure was due to the empty old gen.
>
> thanks for the update.

Thanks for the review. I've left the System.gc() at line 90 intact - 
when discussing this with Bengt during the review he was concerned that 
other pools might be susceptible to this kind of problem and having a 
full GC right before the check could lessen the probability of running 
into the data races described in this issue.

-JB-

> Mandy