From: "Frank Ch. Eigler" <fche@redhat.com>
To: "Jose R. Santos" <jrsantos@austin.ibm.com>
Cc: systemtap@sources.redhat.com
Subject: Re: next steps
Date: Mon, 26 Sep 2005 22:13:00 -0000 [thread overview]
Message-ID: <20050926221239.GG27733@redhat.com> (raw)
In-Reply-To: <20050926213411.GA9468@rx8.austin.ibm.com>
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Hi -
On Mon, Sep 26, 2005 at 04:34:11PM -0500, Jose R. Santos wrote:
> [...]
> > ln ("cpu", cpu()) # cpu() to go into context tapset
> This would need to look something like this:
>
> function cpu:long () %{
> [...]
> THIS->__retvalue = task_cpu(current);
> %}
> right? Seems to be working on my 4-way system.
Yes, or perhaps just smp_processor_id() if that were more general and
still safe.
> [...]
> > ln ("jiffies", jiffies())) # jiffies() to go into in timestamp tapset
>
> Just notice the availability of gettimeofday_(us/ms/s) on the
> timestamp tapset so I don't think jiffies are needed. Either
> way, it should be quick and painless to implement.
Exactly. Feel free to submit a patch for one or both of these
additions to the appropriate .stp files, and brief documentation in
src/stapfuncs.5. I can commit them for you, or if you forsee becoming
a frequent contributor, you may request cvs write access.
That reminds me. Time to add a GPL header to the tapset files.
- FChE
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next prev parent reply other threads:[~2005-09-26 22:13 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-09-20 15:50 Frank Ch. Eigler
2005-09-21 15:46 ` Richard J Moore
2005-09-21 20:56 ` Frank Ch. Eigler
2005-09-21 23:33 ` Richard J Moore
2005-09-29 13:00 ` Masami Hiramatsu
2005-09-21 21:24 ` Martin Hunt
2005-09-21 23:58 ` Frank Ch. Eigler
2005-09-26 15:12 ` Jose R. Santos
2005-09-26 15:36 ` Frank Ch. Eigler
2005-09-26 16:26 ` Jose R. Santos
2005-09-26 16:56 ` Frank Ch. Eigler
2005-09-26 21:34 ` Jose R. Santos
2005-09-26 22:13 ` Frank Ch. Eigler [this message]
2005-09-27 15:30 ` Jose R. Santos
2005-09-26 17:44 ` thoughts Mathieu Desnoyers
2005-09-26 18:19 ` thoughts [re LTT] Frank Ch. Eigler
2005-09-26 18:30 ` Mathieu Desnoyers
2005-09-26 19:45 ` Karim Yaghmour
2005-09-29 16:44 ` thoughts Jose R. Santos
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