From: Andrew Johnson <anj@aps.anl.gov>
To: LinuxPPC-Embedded <linuxppc-embedded@lists.linuxppc.org>
Subject: SSSSlllloooowwww MPC8240
Date: Mon, 09 Jul 2001 18:57:33 -0500 [thread overview]
Message-ID: <3B4A44ED.79D7D545@aps.anl.gov> (raw)
Can anybody suggest why I'm seeing the following:
Under Hard Hat Linux 2.0 (2.4.2 kernel) on my MVME2100 board (MPC8240 CPU
running at 200MHz), Linux startup reports a BogoMIPS rating of 9.59. I've
just built and run the exact same calibration code under vxWorks, and here
I get a rating of 133.73 BogoMIPS, which seems much more likely to be
correct. Linux does seem rather sluggish at running things, so I don't
think it's problem with the calibration. Any ideas what could be going on
behind the scenes to slow Linux down, and how I might track it down?
I wonder whether it's related to that openpic interrupt stuff in the other
thread...
TIA,
- Andrew
--
The world is such a cheerful place when viewed from upside-down
It makes a rise of every fall, a smile of every frown
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
next reply other threads:[~2001-07-09 23:57 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-07-09 23:57 Andrew Johnson [this message]
[not found] <002AB7E4.C21188@aps.anl.gov>
2001-07-10 1:37 ` SSSSlllloooowwww MPC8240 Jerry Van Baren
2001-07-10 20:47 ` Andrew Johnson
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