Subject: Re: very slow performance on filesystem meta-data in 1.6 -current
To: =?iso-8859-1?Q?Erik_=C4ngg=E5rd?= <erik.anggard@packetfront.com>
From: Jason R Thorpe <thorpej@wasabisystems.com>
List: port-macppc
Date: 07/15/2002 14:16:52 
On Mon, Jul 15, 2002 at 10:58:29PM +0200, Erik Änggård wrote:

 > local disk                   0.7s           19s
 > local disk w soft updates    n/a            0.3s
 > nfs mounted directory        1s             29s

Matt Thomas noticed a problem like this on a new Xserve ... he determined
that the CPU power saving stuff was absolutely killing interrupt latency.

This might also be the case on your "newmac".  (I'll note that the "oldmac"
uses DOZE mode while the "newmac" uses NAP mode.)

-- 
        -- Jason R. Thorpe <thorpej@wasabisystems.com>