bsdtar eats CPU when extracting POSIX tar archive
kuriyama at imgsrc.co.jp
Sun Aug 29 20:29:12 PDT 2004
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
> > 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 at imgsrc.co.jp> // IMG SRC, Inc.
<kuriyama at FreeBSD.org> // FreeBSD Project
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