Date: Mon, 30 Aug 2004 12:29:08 +0900 From: Jun Kuriyama <kuriyama@imgsrc.co.jp> To: Tim Kientzle <kientzle@freebsd.org> Cc: Current <freebsd-current@freebsd.org> Subject: Re: bsdtar eats CPU when extracting POSIX tar archive Message-ID: <7m4qml483f.wl@black.imgsrc.co.jp> In-Reply-To: <412EAE44.9010500@freebsd.org> References: <7m3c2e88xk.wl@black.imgsrc.co.jp> <412D6534.9030503@freebsd.org> <412D68AD.7050906@freebsd.org> <7moeky5wyg.wl@black.imgsrc.co.jp> <412D8958.7050707@freebsd.org> <7mllg25qma.wl@black.imgsrc.co.jp> <412EAE44.9010500@freebsd.org>
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At Thu, 26 Aug 2004 20:45:08 -0700,
Tim Kientzle wrote:
> >>Looks like it could be network related. I see almost
> >>5,000 calls to recvfrom. ..... Is it uid/gid lookups,
> >>perhaps? bsdtar does not (yet) do any caching of uid/gid
> >>lookups...
> >
> > Hmm, yes, this box uses NIS as client. I confirmed a lot of NIS
> > packets during extraction.
>
> I just added basic uid/gid caching in libarchive's extract
> routines. This should provide a big performance boost
> to bsdtar in situations like yours.
>
> Please try the libarchive/bsdtar that's in HEAD right
> now and let me know how that works for you.
I confirmed it in my environment and it works great! Thanks!
--
Jun Kuriyama <kuriyama@imgsrc.co.jp> // IMG SRC, Inc.
<kuriyama@FreeBSD.org> // FreeBSD Project
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