Hi Xuelei, I've developed a new benchmark to measure SSLContext loading: http://cr.openjdk.java.net/~mbalao/webrevs/8223482/benchmark_sslcontextloading_v0.tar.gz
Results: http://cr.openjdk.java.net/~mbalao/webrevs/8223482/benchmark_sslcontextloading_v0_results_v0 Summary WITHOUT 8223482 FIX ============================================================ Benchmark Mode Cnt Score Error Units SSLContextLoading.test_SSLContextLoading thrpt 10 437456.584 ± 25620.210 ops/s WITH 8223482 FIX (Webrev.01) ============================================================ Benchmark Mode Cnt Score Error Units SSLContextLoading.test_SSLContextLoading thrpt 10 491894.639 ± 27959.271 ops/s However, I'm not sure that this is what you suggested. If we measure "SSLContext.getInstance("TLSv1.2")" alone in a loop, we will have the class static initializer executed only once unless we generate enough memory pressure for the garbage-collector to get rid of the class. I've verified this not only with static analysis but setting a breakpoint. Thus, and considering SSLContextImpl.getApplicableCipherSuites is only called from class static initializers, I would have not expected performance degradation there. Look forward to your answer. Kind regards, Martin.-
