RFR(XL): 8185640: Thread-local handshakes

Claes Redestad claes.redestad at oracle.com
Wed Oct 18 14:28:34 UTC 2017


On 2017-10-18 16:05, Doerr, Martin wrote:
>   [...] when benchmarking with -Xint. (I don't know if Oracle usually runs startup performance benchmarks.)

we do a lot of benchmarking to measure startup, warmup and footprint on 
a variety of applications,
and have been improving tooling to flag even very small regressions 
(statistically significant results on
<0.5M instruction increases).

-Xint is typically not explicitly used for any benchmarking other than 
as a diagnostic tool, and even
if we did I'd imagine we'd not file bugs if they didn't also correlate 
with a regression in a mixed mode


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