SPECjvm2008 benchmark numbers for AArch64

[Andrew Haley]

Hi,

On 12/02/18 20:06, Petr Tůma wrote:

>> I would surely hope that the exact same JVM should be used for Graal
>> and C2 compiler runs, otherwise the test is completely invalid.
> 
> The JVM was not exactly the same. For the numbers I posted, HotSpot was 
> 1.8.0-162 for x86_64 which Oracle makes available on their web. Graal 
> was running on top of HotSpot 1.8.0-151 with JVMCI 0.38 again from 
> Oracle web. The OpenJDK build was completely different of course.
> 
> I would not go as far as call the test "completely invalid". It was not 
> done to compare Graal against C2 with strict isolation of as many other 
> factors as possible. It was simply a small subset of measurements we use 
> to track changes in Graal performance, which can give some idea of what 
> ranges of values to expect on the benchmarks.

Sure, but at least in the case of the crypto benchmarks we're looking
at the possible impact caused by using different providers and therefore
running completely different code.  That's very useful to know.

-- 
Andrew Haley
Java Platform Lead Engineer
Red Hat UK Ltd. <https://www.redhat.com>
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