From: Mark Shinwell <mshinwell@janestreet.com>
To: "Maxime Dénès" <Maxime.Denes@inria.fr>
Cc: caml-list@inria.fr
Subject: Re: [Caml-list] enhancements for "perf" on OCaml code
Date: Fri, 12 Jul 2013 16:41:00 +0100 [thread overview]
Message-ID: <CAM3Ki77VtR4owr0LOH7HoSiB73mApiSQhxOSDAywhjvo2mC+cw@mail.gmail.com> (raw)
In-Reply-To: <51E01448.1000801@inria.fr>
On 12 July 2013 15:35, Maxime Dénès <Maxime.Denes@inria.fr> wrote:
> Is it related to the recently introduced "-with-frame-pointers" configure
> flag http://caml.inria.fr/mantis/view.php?id=5721 ?
>
> The purpose of this flag seemed to be the use of the same perf tool.
Compilation with a frame pointer enables the display of callgraph
information in perf. It is effectively a workaround for the fact that the
in-kernel stack unwinder used by perf does not use the debugging
information in the executable.
The perf-annotate compiler is designed specifically to make the
"perf annotate" feature of the perf tools work in a satisfactory way
for OCaml code. It's roughly speaking orthogonal, but you probably
want to use both.
Mark
prev parent reply other threads:[~2013-07-12 15:41 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-12 13:46 Mark Shinwell
2013-07-12 14:35 ` Maxime Dénès
2013-07-12 15:41 ` Mark Shinwell [this message]
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