From: Peter Zijlstra <peterz@infradead.org>
To: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Stephane Eranian <eranian@google.com>,
LKML <linux-kernel@vger.kernel.org>, Ingo Molnar <mingo@elte.hu>,
Arnaldo Carvalho de Melo <acme@redhat.com>,
Paul Mackerras <paulus@samba.org>,
Cyrill Gorcunov <gorcunov@openvz.org>,
Tom Zanussi <tzanussi@gmail.com>,
Masami Hiramatsu <mhiramat@redhat.com>,
Steven Rostedt <rostedt@goodmis.org>,
Robert Richter <robert.richter@amd.com>,
David Miller <davem@davemloft.net>
Subject: Re: [RFC PATCH 2/9] perf: Add ability to dump user regs
Date: Sun, 17 Oct 2010 12:07:03 +0200 [thread overview]
Message-ID: <1287310023.1998.150.camel@laptop> (raw)
In-Reply-To: <20101015225722.GA5354@nowhere>
On Sat, 2010-10-16 at 00:58 +0200, Frederic Weisbecker wrote:
> > Yes, PEBS does not capture the entire state.
> >
> > Here is what you get on Intel Core:
> > u64 flags, ip;
> > u64 ax, bx, cx, dx;
> > u64 si, di, bp, sp;
> > u64 r8, r9, r10, r11;
> > u64 r12, r13, r14, r15;
> Ok, that seems to cover most of the state. I guess few people care
> about cs, ds, es, fs, gs, most of the time.
Yeah, except if you want to profile wine or something like that ;-)
next prev parent reply other threads:[~2010-10-17 10:07 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-13 5:06 [RFC] perf: Dwarf cfi based user callchains Frederic Weisbecker
2010-10-13 5:06 ` [RFC PATCH 1/9] uaccess: Make copy_from_user_nmi() globally available Frederic Weisbecker
2010-10-13 7:15 ` Peter Zijlstra
2010-10-13 14:47 ` Frederic Weisbecker
2010-10-13 20:43 ` Peter Zijlstra
2010-10-13 5:06 ` [RFC PATCH 2/9] perf: Add ability to dump user regs Frederic Weisbecker
2010-10-13 7:20 ` Peter Zijlstra
2010-10-13 14:56 ` Frederic Weisbecker
2010-10-13 14:58 ` Frederic Weisbecker
2010-10-14 11:06 ` Stephane Eranian
2010-10-14 11:20 ` Frederic Weisbecker
2010-10-15 8:39 ` Stephane Eranian
2010-10-15 22:58 ` Frederic Weisbecker
2010-10-17 10:07 ` Peter Zijlstra [this message]
2010-10-18 10:01 ` Stephane Eranian
2010-10-18 22:35 ` Frederic Weisbecker
2010-10-20 9:24 ` Stephane Eranian
2010-10-20 16:13 ` Frederic Weisbecker
2010-10-20 16:19 ` Peter Zijlstra
2010-10-13 5:06 ` [RFC PATCH 3/9] perf: Add ability to dump part of the user stack Frederic Weisbecker
2010-10-13 7:22 ` Peter Zijlstra
2010-10-13 15:01 ` Frederic Weisbecker
2010-10-13 5:06 ` [RFC PATCH 4/9] perf: Don't record frame pointer based user stacktraces if we dump stack and regs Frederic Weisbecker
2010-10-13 7:23 ` Peter Zijlstra
2010-10-13 15:02 ` Frederic Weisbecker
2010-10-16 0:19 ` Frederic Weisbecker
2010-10-13 5:06 ` [RFC PATCH 5/9] perf: Support for dwarf mode callchain on perf record Frederic Weisbecker
2010-10-13 5:06 ` [RFC PATCH 6/9] perf: Build with dwarf cfi Frederic Weisbecker
2010-10-13 5:06 ` [RFC PATCH 7/9] perf: Support for error passed over pointers Frederic Weisbecker
2010-10-13 5:07 ` [RFC PATCH 8/9] perf: Add libunwind dependency for dwarf cfi unwinding Frederic Weisbecker
2010-10-13 5:07 ` [RFC PATCH 9/9] perf: Support for dwarf cfi unwinding on post processing Frederic Weisbecker
2010-10-13 15:13 ` [RFC] perf: Dwarf cfi based user callchains Frank Ch. Eigler
2010-10-20 15:35 ` Frederic Weisbecker
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