From owner-freebsd-alpha@FreeBSD.ORG  Wed Nov 12 15:00:10 2003
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Date: Wed, 12 Nov 2003 18:00:08 -0500 (EST)
From: Jeff Roberson <jroberson@chesapeake.net>
To: "David O'Brien" <obrien@freebsd.org>
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cc: Kris Kennaway <kris@obsecurity.org>
cc: alpha@freebsd.org
cc: ticso@cicely.de
Subject: Re: New alpha 5.x bug
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On Wed, 12 Nov 2003, David O'Brien wrote:

> On Tue, Nov 11, 2003 at 07:42:19PM -0500, Jeff Roberson wrote:
> > I wrote some code last night to write a predictable pattern of bytes on
> > one side of a pipe and read it back in on another.  I ran several sets of
> > these programs over night, one doing 16byte transfers, another doing
> > 16384, and another doing 100,000,000 bytes in 2xPAGE_SIZE chunks.
>
> Can you post the test code?  Maybe Kris could run it on the Alpha custer
> during some builds also.
>

http://www.chesapeake.net/~jroberson/reader.c && writer.c

I use ./writer | ./reader

You can specify a size, such as: ./writer 16384 | ./reader 16384

The sizes must match.  They will read and write at most 32k at a time,
using multiple passes for larger sizes.

Cheers,
Jeff