From: joakim@verona.se
To: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: emacs-devel@gnu.org
Subject: Re: Speeding up parallel compilation
Date: Thu, 06 Sep 2012 14:32:08 +0200 [thread overview]
Message-ID: <m3d31zfi2f.fsf@chopper.vpn.verona.se> (raw)
In-Reply-To: <jwv4nnbluiu.fsf-monnier+emacs@gnu.org> (Stefan Monnier's message of "Wed, 05 Sep 2012 23:13:03 -0400")
Stefan Monnier <monnier@iro.umontreal.ca> writes:
> The recent change I installed which macro-expands Elisp code eagerly
> upon load does not speed up sequential compilation very much, but it
> seems to help parallel compilation significantly: on a 12-core
> 24-threads machine, "make -j24 bootstrap" went down from 2:20 to 1:50,
> and the CPU utilization went up (from 800% to 1000%).
>
> In other words, this mostly sped up a part of the compilation which does
> not parallelize well. I guess that would be either the construction of
> loaddefs, or the compilation of the compiler.
>
> So, lucky those with manycore systems.
Yay, thus I must get one! BTW was that a dual AMD or Intel btw?
>
>
> Stefan
--
Joakim Verona
next prev parent reply other threads:[~2012-09-06 12:32 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-06 3:13 Speeding up parallel compilation Stefan Monnier
2012-09-06 12:32 ` joakim [this message]
2012-09-06 14:30 ` Stefan Monnier
2012-09-06 16:19 ` parallel compilation --with-ns (was: re: Speeding up parallel compilation) chad
2012-09-06 16:21 ` parallel compilation --with-ns Paul Eggert
2012-09-10 18:25 ` Sudish Joseph
2012-09-10 20:41 ` chad
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