From: "Frank Ch. Eigler" <fche@redhat.com>
To: Masami Hiramatsu <mhiramat@redhat.com>
Cc: Theodore Tso <tytso@mit.edu>, systemtap@sources.redhat.com
Subject: Re: Discussion at Linux Foundation Japan Symposium
Date: Mon, 12 Jan 2009 18:53:00 -0000 [thread overview]
Message-ID: <20090112185217.GE18407@redhat.com> (raw)
In-Reply-To: <496B894D.7000708@redhat.com>
Hi -
On Mon, Jan 12, 2009 at 01:17:49PM -0500, Masami Hiramatsu wrote:
> [...]
> Frank Ch. Eigler wrote:
> > That is one possible solution for this specific problem -- rawhide
> > systemtap users who're unable/unwilling to build systemtap out of git
> > occasoinally. (Remember that the recent 2.6.28 breakage took a few
> > hours to fix.)
> >
> > Another solution would be for rawhide-style distributions to
> > aggressively package systemtap snapshots into their development
> > streams [...]
>
> Even if we do that, we have to clarify which package can be applied
> to which kernel version.
In what way? There would be one package in rawhide, which should work
on every kernel version that we've ever worked with. It would be
replaced frequently - perhaps every few days.
> I'm still not sure when some bugs reported on this ml are fixed -
> e.g. http://sources.redhat.com/ml/systemtap/2009-q1/msg00029.html
There was no bugzilla report associated with it, but it was fixed the
same day.
> BTW, more those kind of bugfix are committed, more autoconfs are
> introduced. We already has 15(!) autoconfs,
Yes, but as you know, their cost has a benefit: they enable our
operation with a whole spectrum of kernel versions.
> and these autoconfs increase compilation time (this will be avoided
> by caching the result per kernel...).[...]
FWIW, on my workstation, they seem to add about a second.
> >> and eventually I suspect markers infrastructure will probably
> >> disappear entirely since tracepoints are perceived as better and
> >> as their replacement.
> >
> > (That would probably hurt lttng more than it would systemtap.)
>
> (Now, lttng is working with kernel community, I think this doesn't hurt
> lttng so much.)
I'm simply saying that currently lttng thoroughly depends on markers,
which systemtap does not.
- FChE
next prev parent reply other threads:[~2009-01-12 18:53 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-22 18:22 Frank Ch. Eigler
2008-12-22 20:38 ` Theodore Tso
2008-12-22 22:41 ` Frank Ch. Eigler
2008-12-23 0:33 ` Theodore Tso
2008-12-23 0:34 ` Masami Hiramatsu
2008-12-23 0:44 ` Theodore Tso
2008-12-23 21:13 ` Roland McGrath
2008-12-23 22:13 ` Masami Hiramatsu
2008-12-23 14:28 ` Frank Ch. Eigler
2008-12-23 22:21 ` Roland McGrath
2008-12-23 22:33 ` Masami Hiramatsu
2008-12-23 22:44 ` Roland McGrath
2008-12-24 3:40 ` Masami Hiramatsu
2008-12-24 8:48 ` Roland McGrath
2008-12-24 18:14 ` Masami Hiramatsu
2008-12-24 19:26 ` Roland McGrath
2008-12-24 21:02 ` Theodore Tso
2008-12-26 18:17 ` Roland McGrath
2008-12-23 23:27 ` Theodore Tso
2008-12-24 6:11 ` Masami Hiramatsu
2009-01-10 2:48 ` Theodore Tso
2009-01-11 16:29 ` Frank Ch. Eigler
2009-01-12 18:18 ` Masami Hiramatsu
2009-01-12 18:53 ` Frank Ch. Eigler [this message]
2009-01-12 19:29 ` Masami Hiramatsu
2009-01-12 19:26 ` Theodore Tso
2009-01-12 20:01 ` Frank Ch. Eigler
2009-01-12 19:05 ` Jason Baron
2009-01-12 19:52 ` Theodore Tso
2009-01-12 20:32 ` Frank Ch. Eigler
2009-01-08 9:22 ` Roland McGrath
2009-01-10 1:33 ` Theodore Tso
2008-12-22 23:34 ` Masami Hiramatsu
-- strict thread matches above, loose matches on Subject: below --
2008-12-18 8:33 Satoshi OSHIMA
2008-12-18 8:59 ` KOSAKI Motohiro
2008-12-18 9:07 ` Jun Koi
2008-12-18 9:21 ` jidong xiao
2008-12-18 9:28 ` Jun Koi
2008-12-18 9:35 ` KOSAKI Motohiro
2008-12-18 9:37 ` Jun Koi
2008-12-18 9:42 ` Jun Koi
2008-12-18 9:46 ` KOSAKI Motohiro
2008-12-18 9:58 ` K.Prasad
2008-12-18 10:02 ` KOSAKI Motohiro
2008-12-18 10:21 ` K.Prasad
2008-12-18 15:52 ` Masami Hiramatsu
2008-12-18 15:41 ` Masami Hiramatsu
2008-12-18 17:11 ` Frank Ch. Eigler
2008-12-19 0:08 ` KOSAKI Motohiro
2008-12-19 0:58 ` Frank Ch. Eigler
2008-12-19 1:39 ` KOSAKI Motohiro
2008-12-19 23:51 ` William Cohen
2008-12-20 1:51 ` Richard J Moore
2008-12-20 14:27 ` Masami Hiramatsu
2008-12-19 0:45 ` Masami Hiramatsu
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