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Date:      Wed, 7 Apr 2004 05:43:59 +1000
From:      Peter Jeremy <PeterJeremy@optushome.com.au>
To:        Tim Kientzle <tim@kientzle.com>
Cc:        current@freebsd.org
Subject:   Re: cvs commit: src/usr.bin/tar Makefile bsdtar.1 bsdtar.c bsdtar.h bsdtar_platform.h matching.c read.c util.c write.c
Message-ID:  <20040406194359.GB53327@cirb503493.alcatel.com.au>
In-Reply-To: <4072F398.5040709@kientzle.com>
References:  <200404052132.i35LWIgJ009519@repoman.freebsd.org> <20040406082945.GD397@ip.net.ua> <4072F398.5040709@kientzle.com>

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On Tue, Apr 06, 2004 at 11:14:48AM -0700, Tim Kientzle wrote:
>improve some as I continue to work on it.  However, in general,
>I expect it to be a little bit slower because the compression
>isn't handled in a separate process (thus there's less overlapping
>of I/O and computation).

On the flip side, having everything in one process means there's less
context switching and no copying data between processes.  On a UP
system there's relatively little scope for overlap because pipes
don't buffer much.

Peter



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