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From: "mhiramat at redhat dot com" <sourceware-bugzilla@sourceware.org>
To: systemtap@sources.redhat.com
Subject: [Bug translator/4935] support on-the-fly probe enable/disable syntax
Date: Tue, 27 Nov 2007 23:10:00 -0000	[thread overview]
Message-ID: <20071127231037.25361.qmail@sourceware.org> (raw)
In-Reply-To: <20070817183537.4935.fche@redhat.com>


------- Additional Comments From mhiramat at redhat dot com  2007-11-27 23:10 -------
(In reply to comment #5)
> Please note that use of this capability would render the probe un-disableable,
> since kernel $context variables need to be evaluated from a single particular
> kprobe rather than anywhere in the script.
> 

Sure, I agree.
I think when we access only global variables in the condition and those 
variables are not changed in the probe point, the probe will be disabled
automagically from other probes where those global variables are changed.
And This optimization depends on where the global variables are changed.
Procfs probes and timer probe are good places to do that.


-- 


http://sourceware.org/bugzilla/show_bug.cgi?id=4935

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  parent reply	other threads:[~2007-11-27 23:10 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-08-17 21:37 [Bug translator/4935] New: " fche at redhat dot com
2007-08-24  1:46 ` [Bug translator/4935] " fche at redhat dot com
2007-10-08 16:49 ` mhiramat at redhat dot com
2007-10-08 17:10 ` fche at redhat dot com
2007-11-16 23:40 ` mhiramat at redhat dot com
2007-11-20 16:34   ` Frank Ch. Eigler
2007-11-20 18:57     ` Masami Hiramatsu
2007-11-27 16:02 ` mhiramat at redhat dot com
2007-11-27 16:15 ` fche at redhat dot com
2007-11-27 23:10 ` mhiramat at redhat dot com [this message]
2007-12-04 20:46 ` mhiramat at redhat dot com
2007-12-04 20:47 ` mhiramat at redhat dot com
2007-12-05 17:09 ` fche at redhat dot com
2007-12-05 19:21 ` mhiramat at redhat dot com
2008-01-14 17:13 ` fche at redhat dot com
2008-10-01 21:23 ` mhiramat at redhat dot com
2009-11-20 22:42 ` fche at redhat dot com

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