From: Matt Chapman <matthewc@cse.unsw.edu.au>
To: linux-ia64@vger.kernel.org
Subject: [Linux-ia64] Strange performance monitoring results
Date: Fri, 10 May 2002 09:20:06 +0000 [thread overview]
Message-ID: <marc-linux-ia64-105590701905566@msgid-missing> (raw)
* Linux 2.4.18-ia64-020508 (CONFIG_PERFMON, !CONFIG_DISABLE_VHPT)
* pfmon 1.0
* Uniprocessor Itanium C1-step
* lat_ctx from LMbench 2.0p2 (ftp://ftp.bitmover.com/lmbench/)
(Though I get the same results with 2.4.16 and pfmon 0.06a.)
% pfmon -e ITLB_MISSES_FETCH,ITLB_INSERTS_HPW ./lat_ctx 5
"size=0k ovr=2.65
5 2.52
221400 ITLB_MISSES_FETCH
133 ITLB_INSERTS_HPW
The ITLB misses figure seems much too big, especially given the number
of hardware pagetable walker inserts is low. Every few times I also get
very big figures for DTLB_MISSES, although not DTC_MISSES (I would have
thought DTLB_MISSES should be less than DTC_MISSES?).
Am I doing something wrong?
Matt
next reply other threads:[~2002-05-10 9:20 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-05-10 9:20 Matt Chapman [this message]
2002-05-16 16:31 ` [Linux-ia64] Strange performance monitoring results Stephane Eranian
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=marc-linux-ia64-105590701905566@msgid-missing \
--to=matthewc@cse.unsw.edu.au \
--cc=linux-ia64@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox