RFR: 6735527: Bitmap - speed up searches

Kim Barrett kim.barrett at oracle.com
Wed Oct 31 13:52:36 UTC 2018


> On Oct 30, 2018, at 10:29 AM, Thomas Schatzl <thomas.schatzl at oracle.com> wrote:
> On Fri, 2018-10-26 at 20:18 -0400, Kim Barrett wrote:
>> Please review this improvement to the performance of BitMap searches.
>> 
>> […]
>> Question for reviewers: Should the microbenchmark be checked in?  It
>> doesn't really test anything, just executes some code and prints some
>> timing information.
>> 
>> CR:
>> https://bugs.openjdk.java.net/browse/JDK-6735527
>> 
>> Webrev:
>> http://cr.openjdk.java.net/~kbarrett/6735527/open.00/
>> http://cr.openjdk.java.net/~kbarrett/6735527/comparison.ods
> 
>  the change looks good to me.

Thanks.

> The microbenchmark unfortunately does not seem to not fit anywhere in
> the rest of the repo at this time. Maybe somebody else has an idea
> where to put it.

Maybe the new test/micro area that Claes is creating for JEP 230?
But that all seems to be Java-based.  Since the code isn’t all that interesting
(and can be recovered from the review package if anyone cares), I think I’m
going to exclude it from the push, unless someone objects.




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