Subject: Re: NetBSD 1.6.1, FreeBSD 5 and OpenBSD and Linux 2.4/6 scalability
To: Dan Melomedman <>
From: Ted Unangst <>
List: current-users
Date: 10/19/2003 16:30:11
On Sun, 19 Oct 2003, Dan Melomedman wrote:

> Basically NetBSD looks very good, but still behind FreeBSD and Linux in some
> cases. OpenBSD trades a lot for security, such as in randomized mmap,
> but oddly scales well in one of the mmap benchmarks.

just fyi, the burn on mmap is because it's going to disk.  without ubc, if 
you unmap the page it disappears.  so the next mmap has to go disk again.
problematic, but most webservers don't engage in such mindless behavior.
it's unclear what current he tried, and if it had random mmap in it, 
but the cost of randomization is not nearly so bad. :)

let's stop saying "don't quote me"
because if no one quotes you
you probably haven't said a thing worth saying