Subject: Re: hyperthreading and MP
To: None <mlh@goathill.org>
From: Matt Thomas <matt@3am-software.com>
List: current-users
Date: 06/28/2004 13:57:43
At 01:16 PM 6/28/2004, MLH wrote:
>A few things I checked measure very slightly faster than with a
>GENERIC kernel.

It depends on what you are doing.  I did a make -j 4 (right after
a boot) of the kernel that runs on my 2.8GHz P4 HT system, one
with a normal  uniprocessor kernel and once with a multiprocessor
kernel.  Here are the results:

203.7u 20.2s 3:45.57  99.3% 0+0k 226+26077io 62963pf+0w
340.2u 34.5s 3:13.20 193.9% 0+0k 230+26024io 62973pf+0w

A 14% improvement in speed is significant.

-- 
Matt Thomas                     email: matt@3am-software.com
3am Software Foundry              www: http://3am-software.com/bio/matt/
Cupertino, CA              disclaimer: I avow all knowledge of this message.