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- Subject: Re: [ANN] LuaJIT 1.0.3
- From: David Given <dg@...>
- Date: Thu, 8 Sep 2005 23:39:56 +0100
On Thursday 08 September 2005 21:36, William Trenker wrote:
> Great work, Mike! Do you have any plans for other targets? Are you
> open to suggestions? Can we take a poll? I vote for embedded targets,
> specifically Mipsel linux-based devices.
Mipsel? Pah --- you (or at least I) want ARM!
> On another note, you've worked a lot with Lua 5.1 which is now heading
> towards release. How comfortable do you feel commiting production
> code to 5.1 at this point? Just curious for an expert opinion.
Indeed. The version of Lua we use internally (for build scripts, mostly) is
5.0, and there are a number of incompatible 5.1 changes. Converting would be
a fair amount of work. I'd be interested to hear what you think of 5.1.
Incidentally, looking through the LuaJIT code I couldn't find the bit where
you're flushing the processor cache --- we have to do this a lot in our OS,
and was wondering how you did it. On some platforms this can be a major
performance hit; there are some processors that can't flush sections of the
cache, only all of it, and if you do this frequently it can have ghastly
performance issues. A JIT compiler could hit this a lot...
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