Re: Adding assembler code to Lua programs
- From: Konstantin Olkhovskiy <lupus@xxxxxxxxxx>
- To: luajit <luajit@xxxxxxxxxxxxx>
- Date: Sat, 8 Mar 2014 20:15:33 +0400
2014-03-08 16:26 GMT+04:00 Pierre Chapuis <catwell@xxxxxxxxxxxx>:
> Hello,
>
> this is interesting. Do you have a benchmark that shows that?
>
> I wrote that FFI-based implementation but as far as I know
> François Perrad's pure Lua implementation matches its speed
> most of the time.
>
Hey,
I even wanted to write you about my results so as to encourage you to keep
up the good job you've done :) But as I did not have a clear benchmark with
numbers, I hesitated to do that and later other things drew my attention...
Unfortunately I still do not have an isolated benchmark... But I've read
your
README and you suggested to use pure Lua implementation for new projects.
So we tried to go that route, but we got numerous trace aborts due to some
NYI (I do not remember which exactly, but there were two of them with v2.0).
Then we tried your implementation, and got everything JIT compiled, and it
was faster. May be with v2.1 that situation will change.
Our use case is a bit specialized, we have a known structure (defined in
another
messagepack objects elsewhere) and use only arrays. So in order to avoid
ipairs
we've supplied table classifier that says that any table is an array, not a
hash.
--
Regards,
Konstantin
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