On Fri, 25 Oct 2024 18:18:16 GMT, Vladimir Ivanov <vaiva...@openjdk.org> wrote:
> This patch remove access to the shared variable to fix scalability issue in > the multithread environment. According to testing by the > specjvm2008::crypto.rsa the one thread performance reduced for less than 1% > while the score for the multithread run increased in ~2x. For the 2 socket > system with Xeon 8480+ numbers looks as: > • 1 thread: 643.15 for original version vs 642.54 for patched one; > • 224 threads: 22446.19 for original vs 46147.41 for patched. > The RSABench microbenchmark reports no score changes for the 1 thread > (average for all testcases) and 2.4% improvement for the 224 threads. This pull request has now been integrated. Changeset: 4956a766 Author: Vladimir Ivanov <vaiva...@openjdk.org> Committer: Derek White <drwh...@openjdk.org> URL: https://git.openjdk.org/jdk/commit/4956a766213c3d76e13b98ac5d5efe5d4f553895 Stats: 4 lines in 1 file changed: 0 ins; 0 del; 4 mod 8317538: Potential bottleneck in Provider::getService: specjvm2008::crypto.rsa have scalability issue for high vCPU numbers Reviewed-by: ascarpino ------------- PR: https://git.openjdk.org/jdk/pull/21719
