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Date:      Thu, 6 Oct 2005 07:15:52 -0500 (CDT)
From:      Mike Silbersack <silby@silby.com>
To:        Robert Watson <rwatson@FreeBSD.org>
Cc:        cvs-src@FreeBSD.org, src-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject:   Re: cvs commit: src/tools/tools/netrate/httpd httpd.c
Message-ID:  <20051006071440.F40058@odysseus.silby.com>
In-Reply-To: <20051006124123.Y87201@fledge.watson.org>
References:  <200510061028.j96ASVoL031977@repoman.freebsd.org> <20051006063636.S29769@odysseus.silby.com> <20051006124123.Y87201@fledge.watson.org>

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On Thu, 6 Oct 2005, Robert Watson wrote:

>> You can't use this to compare to 4.x then, FWIW.  4.x's sendfile always 
>> puts the headers in a separate packet, so in a large percentage of cases 
>> it's noticeably less efficient, network-traffic wise.
>
> It depends what you're trying to benchmark.  If the goal is to illustrate the 
> performance changes as a result of on-going development, it's legitimate to 
> say that the changes in sendfile() are simply part of that process.  I.e., 
> it's not cheating to have sendfile() improvements count towards overall 
> performance when evaluating overall performance.
>
> Robert N M Watson

True, just don't start thinking that locking improvements are why you're 
seeing differences here. :)

Mike "Silby" Silbersack



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