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From: Tim Kientzle <kientzle@freebsd.org>
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To: Kris Kennaway <kris@obsecurity.org>
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Cc: Ruslan Ermilov <ru@freebsd.org>, src-committers@freebsd.org,
	Andre Oppermann <andre@freebsd.org>, cvs-all@freebsd.org,
	cvs-src@freebsd.org
Subject: Re: cvs commit: src/contrib/tar ABOUT-NLS AUTHORS COPYING ChangeLog
 ChangeLog.1 FREEBSD-Xlist FREEBSD-upgrade INSTALL NEWS PORTS README
 README-alpha
 THANKS TODO src/contrib/tar/doc fdl.texi freemanuals.texi getdate.texi
 header.texi tar.texi version.texi ...
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>>>> Remove vestiges of GNU tar.
>>>
>>>:(
>>>
>>>gtar is still much faster than bsdtar...oh well.
>>
>>What makes gtar so much faster than bsdtar?
> 
> I don't know, tkientzle told me once he'd try to look at it, but I
> don't think anything came of it.

bsdtar doesn't overlap I/O and (de)compression.
In some cases, this makes gtar faster.
I still intend to experiment with async I/O and/or
mmap to see if that addresses the difference.

Tim