RFR: 8346230: [perf] scalability issue for the specjvm2008::xml.transform workload [v6]

[Jatin Bhateja]

On Mon, 14 Apr 2025 15:22:21 GMT, Vladimir Ivanov <vaivanov at openjdk.org> wrote:

>> The HashMap for caching was deleted. Now it use only ThreadLocal variable without synchronization.
>> According to the specjvm2008::xml.transform workload the performance for low threads counts was not affected and improved for high threads counts. 
>> For the 2 socket server based on Xeon 6780E reported scores are (average for 3 runs):
>> 2x6780E | 1C | 32C | 64C | 96C | 128C | 160C | 192C | 224C | 256C | 288C
>> orig        | 138.9567 | 4127.567 | 8203.907 | 12252.07 | 15496.65 | 16222.91 | 15846.48 | 14758.43 | 14612.34 | 13969.25
>> patched | 139.7067 | 4118.763 | 8352.657 | 12491.14 | 16085.63 | 18101.67 | 21001.52 | 23847.33 | 26481.25 | 28273.93
>
> Vladimir Ivanov has updated the pull request incrementally with one additional commit since the last revision:
> 
>   8346230: [perf] scalability issue for the specjvm2008::xml.transform workload

Marked as reviewed by jbhateja (Reviewer).

-------------

PR Review: https://git.openjdk.org/jdk/pull/23185#pullrequestreview-2764985284