[Vm-dev] Some Performance Numbers: Java vs. CogVM vs. SOM
Stefan Marr
smalltalk at stefan-marr.de
Fri Apr 10 13:45:26 UTC 2015
Hi Tim:
> On 10 Apr 2015, at 15:13, timfelgentreff <timfelgentreff at gmail.com> wrote:
>
> We guessed JSON may be bad because we never looked at string performance.
Ok, sounds plausible. Indeed Json uses purely Strings for everything.
> I haven't checked RTruffleSOM in a while, but one issue that affects RSqueak
> (as well as Cog to some extent, I imagine) is that the interrupt timer. For
> us, it adds a couple of guards and bridges to pretty much every loop.
Ok, right. Yes, that’s going to cost performance.
Perhaps, you should have a proper ‘headless/event-less’ execution mode for benchmarking ;)
> SOM doesn’t have an interactive image, does it?
No, no images, no UI, no event handling. It’s really just a straight forward sequential language.
Best regards
Stefan
--
Stefan Marr
INRIA Lille - Nord Europe
http://stefan-marr.de/research/
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