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Re: [PATCH][RFC 2] cleaning up struct sock

To: "David S. Miller" <davem@xxxxxxxxxx>
Subject: Re: [PATCH][RFC 2] cleaning up struct sock
From: Arnaldo Carvalho de Melo <acme@xxxxxxxxxxxxxxxx>
Date: Tue, 18 Dec 2001 18:52:00 -0200
Cc: SteveW@xxxxxxx, jschlst@xxxxxxxxx, ncorbic@xxxxxxxxxxx, eis@xxxxxxxxxxxxx, dag@xxxxxxxxxxx, torvalds@xxxxxxxxxxxxx, marcelo@xxxxxxxxxxxxxxxx, netdev@xxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx
In-reply-to: <20011217.225134.91313099.davem@xxxxxxxxxx>
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References: <20011210230810.C896@xxxxxxxxxxxxxxxx> <20011210.231826.55509210.davem@xxxxxxxxxx> <20011218033552.B910@xxxxxxxxxxxxxxxx> <20011217.225134.91313099.davem@xxxxxxxxxx>
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Em Mon, Dec 17, 2001 at 10:51:34PM -0800, David S. Miller escreveu:
> Which brings me to...
>    
>    Please let me know if this is something acceptable for 2.5.
> 
> What kind of before/after effect do you see in lat_tcp/lat_connect
> (from lmbench) runs?

Improvements on the lat_connect case? :)

2.4.16
TCP latency using 127.0.0.1: 119.3369 microseconds
TCP latency using 127.0.0.1: 118.9847 microseconds
TCP latency using 127.0.0.1: 118.5139 microseconds
TCP latency using 127.0.0.1: 119.1301 microseconds
TCP latency using 127.0.0.1: 118.6322 microseconds

TCP/IP connection cost to 127.0.0.1: 429.6667 microseconds
TCP/IP connection cost to 127.0.0.1: 430.7692 microseconds
TCP/IP connection cost to 127.0.0.1: 431.4615 microseconds
TCP/IP connection cost to 127.0.0.1: 430.3846 microseconds
TCP/IP connection cost to 127.0.0.1: 435.4615 microseconds

2.4.16-acme5
TCP latency using 127.0.0.1: 119.2639 microseconds
TCP latency using 127.0.0.1: 118.6068 microseconds
TCP latency using 127.0.0.1: 119.0443 microseconds
TCP latency using 127.0.0.1: 119.5683 microseconds
TCP latency using 127.0.0.1: 118.9556 microseconds

TCP/IP connection cost to 127.0.0.1: 408.3571 microseconds
TCP/IP connection cost to 127.0.0.1: 409.6429 microseconds
TCP/IP connection cost to 127.0.0.1: 410.6429 microseconds
TCP/IP connection cost to 127.0.0.1: 409.2143 microseconds
TCP/IP connection cost to 127.0.0.1: 414.8333 microseconds

More results are coming, this time for local connections on a 8-way box

- Arnaldo

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