Subject: Re: 4.99.36 instability on amd64
To: Martin Husemann <>
From: Paul Goyette <>
List: current-users
Date: 11/16/2007 04:37:08
On Fri, 16 Nov 2007, Martin Husemann wrote:

> On Thu, Nov 15, 2007 at 07:33:31PM -0800, Paul Goyette wrote:
>> With some helpful clues from Quentin Gardner, I got a core dump file.
>> It sure takes a long time to dump 4GB of memory!
> Out of curiosity, and completely unrelated: how long are we talking about?
> My machine needs a few minutes (I think < 5, but never timed it exactly),
> so I decided it might not be worth to bring in the same optimization I
> used for sparc64 to speed this up.
> If others see slower dumps on amd64, I should reconsider that.

Yeah, 4 or 5 minutes is in the right ball-park.  I think that much of 
the time is actually spent updating the count-down;  it might go a bit 
faster if we didn't print out each and every 1MB step.  At the least, 
watching the countdown makes it _feel_ like it takes longer!

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