[Opensim-dev] [opensim-dev] LLVM with mono

Fly Man fly.man.opensim at gmail.com
Mon Oct 12 13:58:45 UTC 2009


Yes, I have tested this out. It seems that memory management is better
in the LLVM but a region server doesn't go any faster with or without
it

2009/10/11 Christophe, Jean-Charles Narbonne <christophe31 at gmail.com>:
> Quote from mono 2.6 changelog:
>
> LLVM backend
>
> This is a new and experimental feature in Mono. It is now possible to
> compile Mono to use the LLVM code generation engine as an optimizing
> compiler for Mono.
>
> When enabled, LLVM will be used for most code instead of Mono's Just in Time
> compiler (there are a few pieces that are not yet supported by LLVM and in
> those cases Mono will fallback to its internal engine).
>
> Keep in mind that using LLVM has an impact on JIT performance, so this is
> not recommended for desktop scenarios where startup speed is important. LLVM
> should be used only for long-running applications or applications where
> long-term computational speed is more important than startup speed.
>
> The SciMark score on Mono goes from 482 to 610.
>
> Due to problems with autotools on windows, the llvm support is currently
> commented out. It can be enabled by applying this patch, and passing
> --enable-llvm=yes to configure.
>
> Does anybody tryed it?
>
> --
> Best regards,
> Christophe Narbonne
>
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