linux-kernel - Re: [RFC PATCH 00/10] x86: undwarf unwinder

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Message-ID: <3da34815-7a4e-9f6c-ec9f-ed7bd05d8e51@suse.cz>
Date:   Thu, 1 Jun 2017 15:58:27 +0200
From:   Jiri Slaby <jslaby@...e.cz>
To:     Ingo Molnar <mingo@...nel.org>,
        Josh Poimboeuf <jpoimboe@...hat.com>
Cc:     x86@...nel.org, linux-kernel@...r.kernel.org,
        live-patching@...r.kernel.org,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Andy Lutomirski <luto@...nel.org>,
        "H. Peter Anvin" <hpa@...or.com>,
        Peter Zijlstra <peterz@...radead.org>
Subject: Re: [RFC PATCH 00/10] x86: undwarf unwinder

On 06/01/2017, 03:50 PM, Ingo Molnar wrote:
> That's not what I meant! The speedup comes from (hopefully) being able to disable 
> CONFIG_FRAME_POINTER, which:

BTW when you are mentioning this -- my measurements were with FP disabled.

Is there any reasonably simple-to-use benchmark I could run with FP=y
and FP=n quickly?

thanks,
-- 
js
suse labs