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Date:      Wed, 7 Jul 1999 20:52:14 -0700 (PDT)
From:      Julian Elischer <julian@whistle.com>
To:        Mohit Aron <aron@cs.rice.edu>
Cc:        Jonathan Lemon <jlemon@americantv.com>, freebsd-net@FreeBSD.ORG
Subject:   Re: paper on improving webserver performance
Message-ID:  <Pine.BSF.3.95.990707205032.23943m-100000@current1.whistle.com>
In-Reply-To: <199907080346.WAA27087@cs.rice.edu>

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On Wed, 7 Jul 1999, Mohit Aron wrote:

> 
> > 
> > This seems to indicate that you still have the overhead where the timer
> > fires, but no events are actually pending.
> 
> True, but it avoids any pointer manipulations when timers are set and cancelled
> by TCP (which happens much more). Only if a timer is set by TCP that needs to
> fire earlier than the time that the timing wheel event handler needs to fire
> would you need to move around the timing wheel event.
> 
> In any case, I'm very interested in your implementation since you appear to 
> have seen faster performance results with it.

I might add that both have seen faster when compared with the existing,
and both seem quite clever.

I like the memory saving scheme too.. basically a "zombie tcp session" :-)

> 
> 
> 
> - Mohit
> 
> 
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