Request for review: 8007018 RFE: -XX:+UseLargePages does not work with CDS

[harold seigel]

Hi David,

The UseLargePages and related options affect the Java heap.  They do not 
affect the shared archive.  Just to be sure, I created the shared 
archive with -XX:+UseLargePages and then ran tests with 
-XX:-UseLargePages -Xshare:on without problems.  I also did the reverse 
testing.

Thanks, Harold

On 5/7/2013 12:28 AM, David Holmes wrote:
> Hi Harold,
>
> Is there any requirement that the VM that generates the shared 
> archive, and the VMs that use it, run with the same value of 
> UseLargePages (and other large-page related values) ?
>
> Thanks,
> David
>
> On 4/05/2013 3:31 AM, harold seigel wrote:
>> Hi,
>>
>> Please review this fix for bug 8007018.
>>
>> There is no reason why UseLargePages does not work with CDS. So, the
>> fix is to remove the explicit restriction of UseLargePages with CDS from
>> arguments.cpp and then test.
>>
>> Testing was done with -XX:+UseLargePages -X:share<dump|on> on 64 bit
>> Linux and 64 bit Solaris using JCK lang and vm tests and applicable UTE
>> vm.quick.testlist and vm.mlvm.testlist tests.
>>
>> Open webrev at http://cr.openjdk.java.net/~hseigel/bug_8007018/
>> <http://cr.openjdk.java.net/%7Ehseigel/bug_8007018/>
>>
>> Bug link at http://bugs.sun.com/view_bug.do?bug_id=8007018
>>
>> Thanks, Harold