By "stackless features" do you mean just Stackless Python? Or does this
limitation apply to any non-blocking system like gevent?
________________________________
From: Maciej Fijalkowski <[email protected]>
To: holger krekel <[email protected]>
Cc: PyPy Developer Mailing List <[email protected]>
Sent: Tuesday, November 22, 2011 3:47 AM
Subject: Re: [pypy-dev] PyPy 1.7 - widening the sweet spot
On Tue, Nov 22, 2011 at 1:23 AM, holger krekel <[email protected]> wrote:
> On Mon, Nov 21, 2011 at 12:35 +0200, Maciej Fijalkowski wrote:
>> * PyPy now comes with stackless features enabled by default. However,
>> any loop using stackless features will interrupt the JIT for now, so no
>> real
>> performance improvement for stackless-based programs. Contact pypy-dev for
>> info how to help on removing this restriction.
>
> Yes, please, could you talk a bit more explicitely about what is involved
> and what works/integrated and what doesn't?
>
> best,
> holger
>
Everything works, but every instruction that can cause a switch (so
pretty much using *any* of stackless features) will disable jitting
for this loop. this is unideal, and I don't quite recall the exact
reasons why, other than "more work is needed". Armin, can you
elaborate?
Cheers,
fijal
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