From: Mathieu Desnoyers <compudj@krystal.dyndns.org>
To: ltt-dev@lists.casi.polymtl.ca, linux-kernel@vger.kernel.org
Subject: LTTng 0.87 improved page fault tracing
Date: Tue, 27 Jan 2009 16:02:03 -0500 [thread overview]
Message-ID: <20090127210203.GA13478@Krystal> (raw)
Hi,
I just combined the 4 page fault handler events that were in the tracing
hot path of LTTng into 2 :
kernel page_fault_entry
kernel page_fault_exit
They take as parameter the combination of what was available in the
trap_entry/exit events and handle_mm_fault entry/exit events. This
should lessen the performance impact of the tracer when it's active.
I did the related modifications in LTTV 0.12.8.
Mathieu
--
Mathieu Desnoyers
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
next reply other threads:[~2009-01-27 21:02 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-01-27 21:02 Mathieu Desnoyers [this message]
2009-01-29 3:42 ` [ltt-dev] LTTng 0.87 improved page fault tracing KOSAKI Motohiro
2009-01-29 4:43 ` Mathieu Desnoyers
2009-01-29 4:47 ` KOSAKI Motohiro
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=20090127210203.GA13478@Krystal \
--to=compudj@krystal.dyndns.org \
--cc=linux-kernel@vger.kernel.org \
--cc=ltt-dev@lists.casi.polymtl.ca \
/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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.