Re: kern/39298: dd brings system to knees

["Jared D. McNeill" <jmcneill%invisible.ca@localhost>]

The following reply was made to PR kern/39298; it has been noted by GNATS.

From: "Jared D. McNeill" <jmcneill%invisible.ca@localhost>
To: David Holland <dholland-bugs%netbsd.org@localhost>
Cc: jakllsch%siwenna.kollasch.net@localhost, gnats-bugs%netbsd.org@localhost, 
 kern-bug-people%netbsd.org@localhost, gnats-admin%netbsd.org@localhost, 
 netbsd-bugs%netbsd.org@localhost
Subject: Re: kern/39298: dd brings system to knees
Date: Mon, 11 Aug 2008 06:58:28 -0400

 David Holland wrote:
 > On Wed, Aug 06, 2008 at 01:35:01PM +0000, 
 > jakllsch%siwenna.kollasch.net@localhost wrote:
 >  > >How-To-Repeat:
 >  > dd if=/dev/zero of=/dev/null bs=100m count=1000
 >                                    ^^^^
 > 
 > How much is that relative to your RAM size? You're probably just
 > flushing memory.
 
 I was able to reproduce with bs=100m on a machine with 1GB of RAM, 
 didn't try any lower values.
 
 Cheers,
 Jared