Date: Fri, 01 Mar 2002 21:48:23 +0100 From: Poul-Henning Kamp <phk@critter.freebsd.dk> To: Matthew Dillon <dillon@apollo.backplane.com> Cc: Julian Elischer <julian@elischer.org>, Jeff Roberson <jroberson@chesapeake.net>, arch@FreeBSD.ORG Subject: Re: Slab allocator update Message-ID: <16960.1015015703@critter.freebsd.dk> In-Reply-To: Your message of "Fri, 01 Mar 2002 12:36:18 PST." <200203012036.g21KaIs46295@apollo.backplane.com>
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In message <200203012036.g21KaIs46295@apollo.backplane.com>, Matthew Dillon wri tes: > >:On Wed, 27 Feb 2002, Jeff Roberson wrote: >: >:> >:> 1) Fix the last lock order reversal. >:> 2) Fixup the statistics for uma and malloc. >:> 3) Convince people to test it. >:> 4) Commit. >: >:Please try integrate it in such a form that both new and old can be >:compiled in with a config option. >:(for a while) >: >:> 5) Work on converting everything to uma_* interfaces, and adding >:> initializers. >: >:Do lots of testingto prove that it's an improvement. > > I think it only needs to have 'similar' performance to be an > improvement, since the eventual goal is to collapse the > kernel malloc and zalloc subsytems into one. I ran an earlier version of JeffR's patches on my testbox for a couple of weeks and saw a pretty consistent speedup in the order of single digit percentages on most of what I timed. I don't know if the current patch set is significantly changed in any important aspect since then. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message
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