Subject: Re: Othersrc grep versus GNU grep
To: None <email@example.com>
From: Chris Pinnock <firstname.lastname@example.org>
Date: 11/09/2003 12:31:01
On Sun, Nov 09, 2003 at 11:06:07AM +0100, Jaromir Dolecek wrote:
> I note this there is huge difference in number of page reclaims
> and page faults (other resource usage ~same). Perhaps that
> affects the performace most?
> Could this be mmap() vs. read() ? I don't know what GNU grep
> and othersrc grep uses for I/O.
Off the top of my head, othersrc grep uses always tries to use mmap.
GNU grep will always use read unless you give it --mmap.