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Message-ID: <20200401101331.GZ20713@hirez.programming.kicks-ass.net>
Date: Wed, 1 Apr 2020 12:13:31 +0200
From: Peter Zijlstra <peterz@...radead.org>
To: Adrian Hunter <adrian.hunter@...el.com>
Cc: Masami Hiramatsu <mhiramat@...nel.org>,
Ingo Molnar <mingo@...hat.com>,
Steven Rostedt <rostedt@...dmis.org>,
Borislav Petkov <bp@...en8.de>,
"H . Peter Anvin" <hpa@...or.com>, x86@...nel.org,
Mark Rutland <mark.rutland@....com>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Mathieu Poirier <mathieu.poirier@...aro.org>,
Leo Yan <leo.yan@...aro.org>,
Arnaldo Carvalho de Melo <acme@...nel.org>,
Jiri Olsa <jolsa@...hat.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH V5 05/13] perf/x86: Add perf text poke events for kprobes
On Fri, Mar 27, 2020 at 10:36:09AM +0200, Adrian Hunter wrote:
> Add perf text poke events for kprobes. That includes:
>
> - the replaced instruction(s) which are executed out-of-line
> i.e. arch_copy_kprobe() and arch_remove_kprobe()
>
> - optimised kprobe function
> i.e. arch_prepare_optimized_kprobe() and
> __arch_remove_optimized_kprobe()
>
> - optimised kprobe
> i.e. arch_optimize_kprobes() and arch_unoptimize_kprobe()
>
> Signed-off-by: Adrian Hunter <adrian.hunter@...el.com>
Looks good, but we had these nice graphs illustrating how the various
events connect, I'm thinking that would be nice to have in the
Changelog, perhaps even in a document somewhere.
These are after all 8 events here that all interplay.
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