Re: [9fans] GCC3.0 [Was; Webbrowser]

[David Presotto <presotto@closedmind.org>]

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I didn't use iostats to speed things up because we don't need it
now that the bug is fixed.  Here's a bunch of runs with the bug
fixed (actually there were a few bugs, one with acks and one
with coalescing writes before sends).  I could have sworn I'ld
mailed you guys but I'ld just come back to lucent so maybe I
was in daze...

presotto@lauro% for(i in 8000 16000 32000 64000 128000 150000 200000 250000)
	netpipe -l $i prestotest
    8000 Bpp    54352 kbps
   16000 Bpp    66144 kbps
   32000 Bpp    78064 kbps
   64000 Bpp    82992 kbps
  128000 Bpp    86720 kbps
  150000 Bpp    87952 kbps
  200000 Bpp    87760 kbps
  250000 Bpp    90816 kbps

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I'll try to reproduce it but I believe that's the bug we fixed.  I'll let you know after
I try.

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From: andrey mirtchovski <mirtchov@cpsc.ucalgary.ca>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] GCC3.0 [Was; Webbrowser]
Date: Thu, 6 Feb 2003 11:35:16 -0700 (MST)
Message-ID: <20030206113325.O535@fbsd.cpsc.ucalgary.ca>

this is the last message on this subject:

https://lists.cse.psu.edu/archives/9fans/2002-May/017658.html

(it doesn't appear on groups.google.com though, I don't know why -- maybe
the pics attached are to blame?)

indeed we were able to measure improvement in speed, but the behaviour was
still strange, yet even stranger when iostats was involved.

andrey

On Thu, 6 Feb 2003, David Presotto wrote:

> I was under the impression that Dong and I had fixed the TCP problems LANL was
> having.  Is this incorrect?  Could you tell me what's still slow?  I really
> do want our IP stack to stay competative.  Our next move is to take advantage
> of the hardware checksuming on the gigabit boards since, in our most recent
> testing, we seem to differ from BSD speeds most because of that.