RFR: 8081289: aarch64: add support for RewriteFrequentPairs in interpreter
edward.nevill at linaro.org
Thu Jun 4 10:37:55 UTC 2015
Just a polite ping. I submitted this patch for review by a JDK9 reviewer
over a week ago and there has been no response.
This patch was contributed by Alexander Alexeev who is a new contributer to
The patch affects only _arch64 files and both Alexander and I have verified
it by running JTreg hotspot with -Xint.
Thanks for your help,
On 27 May 2015 at 14:21, Edward Nevill <edward.nevill at linaro.org> wrote:
> The following webrev adds support for RewriteFrequentPairs to the template
> interpreter for aarch64.
> This was contributed by Alexander Alexeev (
> alexander.alexeev at caviumnetworks.com)
> This gives a small improvement to the interpreter on aarch64, and brings
> it in line with all the other ports (x86, sparc, ppc, zero) which all
> support RewriteFrequentPairs.
> I have done some performance measurement using -Xint with some micro
> benchmarks and I see a small improvement on each.
> java dhrystone: +9%
> embedded caffeinemark: +4%
> grinderbench: +1%
> dacapo (avrora): +1%
> Tested with hotspot jtreg:-
> Original: Test results: passed: 787; failed: 24; error: 44
> With patch: Test results: passed: 785; failed: 24; error: 46
> The difference in the # of errors is due to timeouts because we are
> running -Xint.
> Please review and if OK I will push.
> All the best,
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