Date: Wed, 16 Mar 2005 09:50:22 +0100 From: "Poul-Henning Kamp" <phk@phk.freebsd.dk> To: Peter Jeremy <PeterJeremy@optushome.com.au> Cc: arch@freebsd.org Subject: Re: Freeing vnodes. Message-ID: <17570.1110963022@critter.freebsd.dk> In-Reply-To: Your message of "Wed, 16 Mar 2005 19:41:06 %2B1100." <20050316084106.GC28328@cirb503493.alcatel.com.au>
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In message <20050316084106.GC28328@cirb503493.alcatel.com.au>, Peter Jeremy wri tes: >On Tue, 2005-Mar-15 11:11:32 -0800, Matthew Dillon wrote: >> syncer: I've always wanted to rewrite the syncer to be per-mount >> or per-physical-device so it could sync out to multiple >> physical devices simultaniously. > >My current bitch with syncer is that it can run for up to around 8msec >(on an AMD XP-1800). This screws up interrupt latency. And throw thousands of I/O requests on the queue at once, which screws up I/O performance. -- 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.
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