From: "Allen Curtis" <acurtis@onz.com>
To: "Mark Wisner" <markwiz@us.ibm.com>
Cc: <linuxppc-dev@lists.linuxppc.org>
Subject: RE: Debugging Network Performance
Date: Tue, 4 Jun 2002 07:46:39 -0700 [thread overview]
Message-ID: <NCBBIINEHIPFGJPLBEIFOEBLDIAA.acurtis@onz.com> (raw)
In-Reply-To: <OF93B8F461.B08FA3A3-ON85256BCE.004FA168@raleigh.ibm.com>
> KGDB may be a good start. netif_rx() is where the packet gets
> passed to the
> stack. It basically throws the packet on a linklist for ip_rcv() in
> ip_input.c to pick up and start processing it through the stack until it
> passes the results to the application. This is tough stuff. Let
> me know how
> you make out.
Any idea who the network stack maintainer is? Perhaps they have something
that timestamps a packets progress through the pipeline.
> I would guess the IP stack has not changed much between kernels.
> I would be
> more concerned about how the scheduler is working and other kernel tasks.
The system is basically idle except for the NFS/FTP traffic.
** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2002-06-04 14:46 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-06-04 14:35 Debugging Network Performance Mark Wisner
2002-06-04 14:46 ` Allen Curtis [this message]
2002-06-04 15:05 ` Michael Fischer
-- strict thread matches above, loose matches on Subject: below --
2002-06-05 12:18 Jean-Denis Boyer
2002-06-05 13:35 ` Allen Curtis
2002-06-05 5:18 Bill Fink
2002-06-05 13:16 ` Allen Curtis
2002-06-05 13:56 ` Bill Fink
2002-06-04 11:12 Mark Wisner
2002-06-04 13:30 ` Allen Curtis
2002-06-04 4:34 Allen Curtis
2002-06-04 9:50 ` Kenneth Johansson
2002-06-04 3:27 Allen Curtis
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