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Re: Threads

From: Alan Grover
Subject: Re: Threads
Date: Tue, 20 Sep 2005 08:12:36 -0400
User-agent: Mozilla Thunderbird 1.0.2 (X11/20050317)

Tomas Zerolo wrote:
> On Mon, Sep 19, 2005 at 11:24:34PM -0400, Alan Grover wrote:
>>Though I read something recently that claimed some thread
>>(mis-)implementations are more costly than a fork, and often more costly
>>than you'd hope. Apparently, the Linux 2.6 thread implementation is in
>>user-space, which means it isn't very thrifty (and causes some other
>>interesting issues).
> On Linux 2.6 and with glibc 2.0 you have native Posix threads, and a
> quite spiffy implementation at that. See e.g.
>   <>
> Newer Guiles try to take advantage of that.

Thanks for the clarification. I should have been more careful and said
that Guile 1.6 apparently uses the (use space) pthreads library. Of
course, it is not clear to me how you figure out what is in your kernel
and/or glibc, nor what Guile might be using.

-- Alan Grover

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