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Date: Mon, 19 Feb 2007 13:50:58 -0800
From: Christopher Layne <clayne AT anodized DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: xargs problem
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On Mon, Feb 19, 2007 at 01:28:17PM -0800, Christopher Layne wrote:
> Absolutely. I don't disagree with this. The issue is the magnitude.
> The opteron box has 4gigs of ram, scsi 320 disks, and is running water cooled
> at 2.8 ghz. Nothing *normal* can explain such a reason why a Celeron-D can
> fork the same /bin/echo's 15 times faster than that box, except for the OS
> difference. Even then, the difference is insane.
> 
>    70     288 [main] xargs 5956 child_copy: dll data - hp 0x6C8 low 0x61118000, high 0x6111D040, res 1
> 75657   75945 [main] xargs 5956 child_copy: dll bss - hp 0x6C8 low 0x61175000, high 0x6117EC30, res 1
> ^ 903   76848 [main] xargs 5956 child_copy: user heap - hp 0x6C8 low 0xA20000, high 0xA40000, res 1
> |  44   76892 [main] xargs 5956 child_copy: done
> |  44   76936 [main] xargs 5956 child_copy: data - hp 0x6C8 low 0x406000, high 0x406050, res 1
> |  29   76965 [main] xargs 5956 child_copy: bss - hp 0x6C8 low 0x409000, high 0x4093A0, res 1
> |  21   76986 [main] xargs 5956 child_copy: done
> |
> |__ not normal

And the plot thickens.

http://www.sourceware.org/ml/cygwin/2006-12/msg00494.html
http://www.sourceware.org/ml/cygwin/2006-12/msg00711.html

-cl


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