RFR 8166848: Performance bug: SystemDictionary - optimization

[Gerard Ziemski]

hi Coleen,

Thank you for tackling this issue.

Looks good to me and I like Serguei suggestion.


cheers

> On May 16, 2017, at 11:21 PM, serguei.spitsyn at oracle.com wrote:
> 
> Hi Coleen,
> 
> It looks good to me.
> Nice simplification!
> 
> One tip is to use the bucket_count for incrementing the element_count:
>   element_count += bucket_count;
> 
> out of the internal for-loop.
> It is to underline the relationship between the two counters.
> 
> Thanks,
> Serguei
> 
> 
> 
> On 5/15/17 05:30, coleen.phillimore at oracle.com wrote:
>> 
>>> Summary: Check instead that a bucket isn't 10x the average
>>> 
>>> See bug and linked bugs for more details.
>>> 
>>> Tested with RBT nightly tests (tier2-5).
>>> 
>>> open webrev at http://cr.openjdk.java.net/~coleenp/8166848.01/webrev
>>> bug link https://bugs.openjdk.java.net/browse/JDK-8166848
>>> 
>>> Thanks,
>>> Coleen
>> 
>