From: Peter Zijlstra <peterz@infradead.org>
To: ananth@in.ibm.com
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>,
Ingo Molnar <mingo@elte.hu>,
Andrew Morton <akpm@linux-foundation.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Masami Hiramatsu <mhiramat@redhat.com>,
Mel Gorman <mel@csn.ul.ie>,
Jim Keniston <jkenisto@linux.vnet.ibm.com>,
Frederic Weisbecker <fweisbec@gmail.com>,
"Frank Ch. Eigler" <fche@redhat.com>,
LKML <linux-kernel@vger.kernel.org>,
Roland McGrath <roland@redhat.com>,
Oleg Nesterov <oleg@redhat.com>,
Christoph Hellwig <hch@infradead.org>
Subject: Re: [PATCH v1 7/10] Uprobes Implementation
Date: Tue, 23 Mar 2010 16:15:54 +0100 [thread overview]
Message-ID: <1269357354.5109.83.camel@twins> (raw)
In-Reply-To: <20100323150544.GA18323@in.ibm.com>
On Tue, 2010-03-23 at 20:35 +0530, Ananth N Mavinakayanahalli wrote:
> Now the question is, where the complexity needs to be.
Both in-tree consumers of uprobes (ftrace and perf) are capable of task
filters.
But the thing is, dso:sym is very much not a task property, adding task
filters afterwards sure makes sense in some cases but it should not be
the primary mode.
If people really want to optimize this we can easily add a few bits of
task state which could tell the trap handler to not even bother looking
up things but restart as fast as possible.
next prev parent reply other threads:[~2010-03-23 15:17 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-20 14:24 [PATCH v1 0/10] Uprobes patches Srikar Dronamraju
2010-03-20 14:25 ` [PATCH v1 1/10] Move Macro W to insn.h Srikar Dronamraju
2010-03-20 15:50 ` Masami Hiramatsu
2010-03-22 6:24 ` Srikar Dronamraju
2010-03-22 14:11 ` Masami Hiramatsu
2010-03-20 14:25 ` [PATCH v1 2/10] Move replace_page() to mm/memory.c Srikar Dronamraju
2010-03-20 14:25 ` [PATCH v1 3/10] Enhance replace_page() to support pagecache Srikar Dronamraju
2010-03-20 14:25 ` [PATCH v1 4/10] User Space Breakpoint Assistance Layer Srikar Dronamraju
2010-03-23 1:40 ` Andrew Morton
2010-03-23 4:48 ` Randy Dunlap
2010-03-23 11:26 ` Srikar Dronamraju
2010-03-20 14:25 ` [PATCH v1 5/10] X86 details for user space breakpoint assistance Srikar Dronamraju
2010-03-20 14:26 ` [PATCH v1 6/10] Slot allocation for Execution out of line Srikar Dronamraju
2010-03-20 14:26 ` [PATCH v1 7/10] Uprobes Implementation Srikar Dronamraju
2010-03-23 11:01 ` Peter Zijlstra
2010-03-23 11:04 ` Peter Zijlstra
2010-03-23 12:23 ` Srikar Dronamraju
2010-03-23 13:46 ` Peter Zijlstra
2010-03-23 14:20 ` Masami Hiramatsu
2010-03-23 15:15 ` Peter Zijlstra
2010-03-23 17:36 ` Masami Hiramatsu
2010-03-24 10:22 ` Srikar Dronamraju
2010-03-23 15:05 ` Ananth N Mavinakayanahalli
2010-03-23 15:15 ` Peter Zijlstra [this message]
2010-03-23 15:26 ` Frank Ch. Eigler
2010-03-24 5:59 ` Ananth N Mavinakayanahalli
2010-03-24 7:58 ` Srikar Dronamraju
2010-03-24 13:00 ` Peter Zijlstra
2010-03-25 7:56 ` Srikar Dronamraju
2010-03-25 8:41 ` Srikar Dronamraju
2010-03-20 14:26 ` [PATCH v1 8/10] X86 details for uprobes Srikar Dronamraju
2010-03-20 14:26 ` [PATCH v1 9/10] Uprobes Documentation patch Srikar Dronamraju
2010-03-22 3:00 ` Randy Dunlap
2010-03-22 5:34 ` Srikar Dronamraju
2010-03-22 14:51 ` Randy Dunlap
2010-03-20 14:26 ` [PATCH v1 10/10] Uprobes samples Srikar Dronamraju
2010-03-23 1:38 ` [PATCH v1 0/10] Uprobes patches Andrew Morton
2010-03-23 10:55 ` Srikar Dronamraju
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