Re: Freeing vnodes.

From: Poul-Henning Kamp (phk_at_phk.freebsd.dk)
Date: 03/16/05

  • Next message: Don Lewis: "Re: Freeing vnodes." 
    To: Peter Jeremy <PeterJeremy@optushome.com.au>
Date: Wed, 16 Mar 2005 09:50:22 +0100

    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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  • Next message: Don Lewis: "Re: Freeing vnodes."