Please review fix for 7196103: NPG: Unable to allocate bit map for parallel garbage collection for the requested heap size
jon.masamitsu at oracle.com
Fri Sep 7 07:52:27 PDT 2012
Could you just enforce this with code instead of an assertion?
I don't want to see that assertion in tomorrow's nightlies :-)
*+ assert(class_word_size< ClassMetaspaceSize/2, "should be no more then half class metaspace size");*
ClassMetaspaceSize is used to reserve space? I see that it's not used
for the initial Metaspace size.
Otherwise, looks good.
On 9/7/2012 6:33 AM, Coleen Phillimore wrote:
> Please reload. I incorporated some suggestions and corrections from
> stefank and did some tuning of the class metaspace size.
> On 9/7/2012 7:22 AM, Coleen Phillimore wrote:
>> Summary: Don't allocate huge class metaspace size by default on x64
>> This was preventing other mmap regions from being initialized on
>> windows 64. I also added some checking around the ClassMetaspaceSize
>> option. 1*M seems to be minimal for startup size
>> open webrev at http://cr.openjdk.java.net/~coleenp/7196103/
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