From: Allan Schrum <aschrum@ecdeliverysystems.com>
To: "cygwin@cygwin.com" <cygwin@cygwin.com>
Date: Mon, 22 Dec 2008 22:02:20 -0500
Subject: RE: [1.7] Pipes intermittently lose data on Cygwin 1.7
Message-ID: <9BE596E8BDDC3443BF23B9678D03CC2928DF6EA0@ECDS-CLT-MX1.ecdeliverysystems.com>
References: <494CB77F.4040403@i12.com> <494D561E.9060607@i12.com>   <20081222173111.GD27364@ednor.casa.cgf.cx> <494FDD16.4030903@i12.com>   <20081222184701.GB23447@ednor.casa.cgf.cx> <494FF338.4020900@i12.com>  <9BE596E8BDDC3443BF23B9678D03CC2928DF6E97@ECDS-CLT-MX1.ecdeliverysystems.com>  <49504CA2.5040200@i12.com>
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> -----Original Message-----
> From: cygwin-owner@cygwin.com [mailto:cygwin-owner@cygwin.com] On
> Behalf Of Lawrence Mayer
> Sent: Monday, December 22, 2008 9:28 PM
> To: cygwin@cygwin.com
> Subject: Re: [1.7] Pipes intermittently lose data on Cygwin 1.7
> 
> On 081222 16:48, Allan Schrum wrote:
> > The numbers 5,132,288 and 5,138,895 are multiples of 4096.
> 
> Thanks for writing Allan. I think you mean 5,132,288 and 5,136,384 (the
> two output sizes) are multiples of 4096.
> 
Yes - thanks - copying too many numbers can result in silly errors.

> > Lawrence: what is the hardware that your are running this test upon?
> What other processes are running at the same time (e.g. CPU usage, I/O
> usage, etc.)?
> 
> Please see my previous post, where I found the same bug on different
> hardware running a different OS. Here are more details:
> 
> Computer 1 (from my original post):
> Motherboard: Shuttle AK31 v3.1
> Chipset: Via KT266 northbridge, VT8233 southbridge
> CPU: Athlon XP 2000+ @ 2 GHz
> Memory: 512 MB DDR
> OS: Windows Server 2003 sp2 32 bit on NTFS
> CPU usage: 0-1% normally, 22-23% max during Cygwin tests
> Handles 3907 Threads 192 Processes 23
> Commit Charge (K): Total 294448 Limit 533992 Peak 426364
> Physical Memory (K): Total 523752 Available 180124 System Cache 235732
> Kernel Memory (K): Total 53912 Paged 34284 Nonpaged 19628
> 
> 
> Computer 2 (from my previous post):
> Motherboard: MSI K7N2 Delta
> Chipset: Nvidia Nforce2
> CPU: Athlon XP 3200+ @ 2.13 GHz
> Memory: 2 GB DDR
> OS: Windows XP Home sp2 32 bit on NTFS
> CPU usage: 0-1% normally, 21-22% max during Cygwin tests
> Handles 3904 Threads 193 Processes 23
> Commit Charge (K): Total 717884 Limit 1964364 Peak 841376
> Physical Memory (K): Total 2096624 Available 1161980 System Cache
> 1298916
> Kernel Memory (K): Total 104788 Paged 76104 Nonpaged 28696
> 

Would it be worth trying to heavily load one of your computers to see if the problem presents itself differently? It is obvious that your systems are fast!

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