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Message from discussion some Enumerable methods slower in 1.9 on OS X after revision 15124
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Nobuyoshi Nakada  
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 More options Mar 31, 2:27 pm
From: Nobuyoshi Nakada <n...@ruby-lang.org>
Date: Tue, 1 Apr 2008 03:27:51 +0900
Local: Mon, Mar 31 2008 2:27 pm
Subject: Re: some Enumerable methods slower in 1.9 on OS X after revision 15124
Hi,

At Mon, 31 Mar 2008 22:07:03 +0900,
Paul Brannan wrote in [ruby-core:16086]:

> Also, I wonder if there is any benefit to __builtin_setjmp instead of
> _setjmp?

Unfortunately,

  error: '__builtin_longjmp' second argument must be 1

it seems not be able to pass a variable.  And combination with
_longjmp caused SEGV.

> Also, just thinking, I wonder how hard it would be to make use of dwarf2
> exceptions on gcc via unwind.h?

How faster is it?

> (I think the API is described here:
> http://www.ucw.cz/~hubicka/papers/abi/node25.html)

I wonder if it works systems other than ``provided by any AMD64
psABI-compliant system.''

--
Nobu Nakada


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