From: Andrew Morton <akpm@linux-foundation.org>
To: netdev@vger.kernel.org
Cc: bugme-daemon@bugzilla.kernel.org, arno@heho.snv.jussieu.fr,
Ayaz Abdulla <aabdulla@nvidia.com>
Subject: Re: [Bugme-new] [Bug 11752] New: Extremely low netperf UDP_RR throughput for nvidia MCP65
Date: Thu, 16 Oct 2008 13:49:20 -0700 [thread overview]
Message-ID: <20081016134920.1492cdcc.akpm@linux-foundation.org> (raw)
In-Reply-To: <bug-11752-10286@http.bugzilla.kernel.org/>
(switched to email. Please respond via emailed reply-to-all, not via the
bugzilla web interface).
On Mon, 13 Oct 2008 13:41:19 -0700 (PDT)
bugme-daemon@bugzilla.kernel.org wrote:
> http://bugzilla.kernel.org/show_bug.cgi?id=11752
>
> Summary: Extremely low netperf UDP_RR throughput for nvidia MCP65
> Product: Drivers
> Version: 2.5
> KernelVersion: from F10-Beta-x86_64-Live-KDE.iso
> Platform: All
> OS/Version: Linux
> Tree: Mainline
> Status: NEW
> Severity: normal
> Priority: P1
> Component: Network
> AssignedTo: jgarzik@pobox.com
> ReportedBy: arno@heho.snv.jussieu.fr
>
>
> Latest working kernel version: -
> Earliest failing kernel version:
> Distribution: F10-Beta-x86_64
> Hardware Environment: HP Pavillon dv6820ef
> Software Environment:
> Problem Description: when running at 1Gbps netperf shows good performance for
> TCP_STREAM and UDP_STREAM tests, but extremely bad performance for UDP_RR test
> (less then 1 ping-pong a second whereas at 100Mbps performance easily reaches
> 10-20K a second)
>
> A friend figured out that it looks like small packets at 1Gbps are dropped
> as being falsely considered crc-errored.
>
>
>
> Steps to reproduce:
Which driver is this using? forcedeth?
next parent reply other threads:[~2008-10-16 20:50 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <bug-11752-10286@http.bugzilla.kernel.org/>
2008-10-16 20:49 ` Andrew Morton [this message]
2008-10-16 21:07 ` [Bugme-new] [Bug 11752] New: Extremely low netperf UDP_RR throughput for nvidia MCP65 Rick Jones
2008-10-17 14:28 ` Arno J. Klaassen
2008-10-17 20:49 ` Arno J. Klaassen
2008-10-17 21:05 ` Rick Jones
2008-10-18 11:36 ` Arno J. Klaassen
2008-10-20 17:41 ` Rick Jones
2008-10-31 13:07 ` Arno J. Klaassen
2008-12-11 20:53 ` Arno J. Klaassen
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