Subject: Re: Issue with large memory systems, revisited
To: Matt Thomas <matt@3am-software.com>
From: Chuck Silvers <chuq@chuq.com>
List: tech-kern
Date: 11/08/2002 06:48:23
I'm using -current, yea.

-Chuck


On Thu, Nov 07, 2002 at 11:27:36PM -0800, Matt Thomas wrote:
> At 10:05 PM 11/7/2002, Chuck Silvers wrote:
> >hi,
> >
> >how are you measuring "the number of simultaneous tasks"?
> >I tried running 5000 copies of "sleep 100" via
> >
> >10 dualg4:~ # unlimit maxproc; repeat 5000 sh -c 'sleep 100 &'
> >
> >(from tcsh), and that worked fine:
> >
> >18 dualg4:~ # top | head
> >load averages:  1.88,  0.90,  0.38    22:04:22
> >5025 processes:5024 sleeping, 1 on processor
> >
> >Memory: 72M Act, 79M Wired, 1217M Free
> 
> Was that on 1.6 or -current?  Current supports 512MB of KVA which
> makes that possible.  256MB under 1.6 along with the buffer cache
> autosized for 1.6GB greatly reduces the among of leftover KVA
> needed for the kernel stack of all those processes.
> 
> 
> -- 
> Matt Thomas               Internet:   matt@3am-software.com
> 3am Software Foundry      WWW URL:    http://www.3am-software.com/bio/matt/
> Cupertino, CA             Disclaimer: I avow all knowledge of this message