From: Christoph Hellwig <hch@lst.de>
To: "K.Prasad" <prasad@linux.vnet.ibm.com>
Cc: Christoph Hellwig <hch@lst.de>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Theodore Tso <tytso@mit.edu>,
ksummit-2008-discuss@lists.linux-foundation.org,
Roland McGrath <roland@redhat.com>,
systemtap@sources.redhat.com
Subject: Re: [Ksummit-2008-discuss] DTrace
Date: Mon, 07 Jul 2008 14:36:00 -0000 [thread overview]
Message-ID: <20080706123647.GB9265@lst.de> (raw)
In-Reply-To: <20080705180432.GA6077@in.ibm.com>
On Sat, Jul 05, 2008 at 11:34:32PM +0530, K.Prasad wrote:
> > You can write probes in plain C, in fact I do this all the time. what's
> > missing is a nice and easy to use channel to get the traces to userspace
> > and interpret them, and helper for poking at kernel data structures.
> >
> As you might be aware the "trace" interface which is part of the -mm
> tree was meant to satisfy such needs.
From the interface POV it's a step in the right direction. But to make
adhoc kprobe tracing viable for anyone but hardcore kernel hackers we
basically want a /debug/trace always availble so that the traces just
need to relay_printk() on it. We also want some helpers to encode
complex strucures. See the current printk on steroids discussion on
lkml which would be pretty helpful for it.
next prev parent reply other threads:[~2008-07-07 14:36 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-06-30 13:57 DTrace Frank Ch. Eigler
2008-06-30 19:00 ` [Ksummit-2008-discuss] DTrace Grant Grundler
2008-06-30 19:40 ` Theodore Tso
2008-06-30 20:00 ` Frank Ch. Eigler
2008-06-30 20:19 ` Theodore Tso
2008-06-30 21:12 ` Arnaldo Carvalho de Melo
2008-06-30 23:02 ` David Miller
2008-06-30 21:13 ` James Bottomley
2008-06-30 22:10 ` Frank Ch. Eigler
2008-07-01 2:42 ` Theodore Tso
2008-07-01 7:08 ` Roland McGrath
2008-07-01 10:15 ` Theodore Tso
2008-07-01 11:04 ` Sam Ravnborg
2008-07-01 12:13 ` Theodore Tso
2008-07-02 20:27 ` Sam Ravnborg
2008-07-01 20:06 ` Roland McGrath
2008-07-01 23:13 ` Theodore Tso
2008-07-02 2:23 ` Frank Ch. Eigler
2008-07-02 19:27 ` Frank Ch. Eigler
2008-07-02 21:40 ` Potential Systemtap topics for the Kernel Summit Theodore Tso
2008-07-02 21:51 ` [Ksummit-2008-discuss] " Jonathan Corbet
2008-07-02 23:41 ` Arnaldo Carvalho de Melo
2008-07-02 22:38 ` Masami Hiramatsu
2008-07-02 22:54 ` [Ksummit-2008-discuss] " Stephen Hemminger
2008-07-03 0:44 ` Ulrich Drepper
2008-07-03 1:02 ` H. Peter Anvin
2008-07-03 1:50 ` Theodore Tso
2008-07-03 1:51 ` Ulrich Drepper
2008-07-02 20:08 ` [Ksummit-2008-discuss] DTrace Joel Becker
2008-07-02 20:17 ` J. Bruce Fields
2008-07-02 20:41 ` Frank Ch. Eigler
2008-07-02 21:19 ` H. Peter Anvin
2008-07-02 21:30 ` Theodore Tso
2008-07-02 21:46 ` J. Bruce Fields
2008-07-05 9:46 ` Peter Zijlstra
2008-07-05 10:07 ` Christoph Hellwig
2008-07-05 12:12 ` Frank Ch. Eigler
2008-07-05 18:08 ` Christoph Hellwig
2008-07-05 13:50 ` James Bottomley
2008-07-05 18:08 ` Christoph Hellwig
2008-07-05 18:05 ` K.Prasad
2008-07-07 14:36 ` Christoph Hellwig [this message]
2008-07-07 17:44 ` K.Prasad
2008-07-05 12:34 ` Theodore Tso
2008-07-01 5:29 ` Ananth N Mavinakayanahalli
2008-06-30 19:59 ` James Bottomley
2008-06-30 23:52 ` Masami Hiramatsu
2008-07-08 23:32 ` Eric W. Biederman
[not found] <20080627150424.GB14894@parisc-linux.org>
[not found] ` <1214580213.3394.40.camel@localhost.localdomain>
[not found] ` <20080627155018.GC14894@parisc-linux.org>
[not found] ` <1214583502.7698.15.camel@weaponx>
[not found] ` <20080627163056.GB1416@lst.de>
[not found] ` <20080628072605.GA505@in.ibm.com>
[not found] ` <20080629084002.GA24131@lst.de>
[not found] ` <20080630051034.GA4970@in.ibm.com>
[not found] ` <20080630112913.GA18817@lst.de>
2008-06-30 19:27 ` Frank Ch. Eigler
2008-07-01 1:21 ` Jim Keniston
[not found] ` <20080706123414.GA9265@lst.de>
2008-07-06 15:47 ` Frank Ch. Eigler
2008-07-06 16:36 ` Evgeniy Polyakov
2008-07-06 18:05 ` Frank Ch. Eigler
2008-07-06 18:24 ` Evgeniy Polyakov
2008-07-06 21:46 ` Frank Ch. Eigler
2008-07-06 22:47 ` Karen Shaeffer
2008-07-06 23:15 ` Frank Ch. Eigler
2008-07-07 5:59 ` Evgeniy Polyakov
2008-07-07 11:19 ` Frank Ch. Eigler
[not found] ` <20080627182754.GB7549@mit.edu>
[not found] ` <1214597135.3394.82.camel@localhost.localdomain>
[not found] ` <aday74qlh08.fsf@cisco.com>
[not found] ` <4865B111.2040307@redhat.com>
[not found] ` <adavdzujh2u.fsf@cisco.com>
[not found] ` <20080704200055.GA11232@synapse.neuralscape.com>
[not found] ` <20080704224424.GA12454@synapse.neuralscape.com>
[not found] ` <1215273663.3439.34.camel@localhost.localdomain>
2008-07-06 23:33 ` Frank Ch. Eigler
2008-07-07 14:35 ` James Bottomley
2008-07-07 15:02 ` James Bottomley
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=20080706123647.GB9265@lst.de \
--to=hch@lst.de \
--cc=a.p.zijlstra@chello.nl \
--cc=ksummit-2008-discuss@lists.linux-foundation.org \
--cc=prasad@linux.vnet.ibm.com \
--cc=roland@redhat.com \
--cc=systemtap@sources.redhat.com \
--cc=tytso@mit.edu \
/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;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).