From: Steven Rostedt <rostedt@goodmis.org>
To: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Matt Helsley <mhelsley@vmware.com>,
LKML <linux-kernel@vger.kernel.org>,
Ingo Molnar <mingo@kernel.org>,
Peter Zijlstra <peterz@infradead.org>
Subject: Re: [RFC][PATCH 00/13] Cleanup recordmcount and begin objtool conversion
Date: Tue, 28 May 2019 10:50:02 -0400 [thread overview]
Message-ID: <20190528105002.5951dbbd@gandalf.local.home> (raw)
In-Reply-To: <20190528144328.6wygc2ofk5oaggaf@treble>
On Tue, 28 May 2019 09:43:28 -0500
Josh Poimboeuf <jpoimboe@redhat.com> wrote:
> Thanks for the patches. This looks like a good step in the right
> direction.
Good to hear.
>
> What's the performance difference between the old recordmcount and the
> new version which relies on elf_open()? It would be useful to compare
> kernel build times, before and after.
I'll let Matt answer these.
>
> Would it be feasible to eventually combine subcommands so that objtool
> could do both ORC and mcount generation in a single invocation? I
> wonder what what the interface would look like.
That is actually the goal of this work. To eventually be able to do
single passes to accomplish multiple tasks.
-- Steve
next prev parent reply other threads:[~2019-05-28 14:50 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-23 0:03 Matt Helsley
2019-05-23 0:03 ` [RFC][PATCH 01/13] recordmcount: Remove redundant strcmp Matt Helsley
2019-05-23 0:03 ` [RFC][PATCH 02/13] recordmcount: Remove uread() Matt Helsley
2019-05-23 0:03 ` [RFC][PATCH 03/13] recordmcount: Remove unused fd from uwrite() and ulseek() Matt Helsley
2019-05-23 0:03 ` [RFC][PATCH 04/13] recordmcount: Rewrite error/success handling Matt Helsley
2019-05-23 0:03 ` [RFC][PATCH 05/13] recordmcount: Kernel style function signature formatting Matt Helsley
2019-05-23 0:03 ` [RFC][PATCH 06/13] recordmcount: Kernel style formatting Matt Helsley
2019-05-23 0:03 ` [RFC][PATCH 07/13] recordmcount: Remove redundant cleanup() calls Matt Helsley
2019-05-23 0:03 ` [RFC][PATCH 08/13] recordmcount: Clarify what cleanup() does Matt Helsley
2019-05-23 0:03 ` [RFC][PATCH 09/13] objtool: Prepare to merge recordmcount Matt Helsley
2019-05-23 0:03 ` [RFC][PATCH 10/13] objtool: Make recordmcount into an objtool subcmd Matt Helsley
2019-05-28 14:54 ` Josh Poimboeuf
2019-05-23 0:03 ` [RFC][PATCH 11/13] objtool: recordmcount: Start using objtool's elf wrapper Matt Helsley
2019-05-23 0:03 ` [RFC][PATCH 12/13] objtool: recordmcount: Search for __mcount_loc before walking the sections Matt Helsley
2019-05-23 0:03 ` [RFC][PATCH 13/13] objtool: recordmcount: Convert do_func() relhdrs Matt Helsley
2019-05-28 14:43 ` [RFC][PATCH 00/13] Cleanup recordmcount and begin objtool conversion Josh Poimboeuf
2019-05-28 14:50 ` Steven Rostedt [this message]
2019-05-29 13:41 ` Peter Zijlstra
2019-05-29 14:11 ` Josh Poimboeuf
2019-05-30 23:52 ` Matt Helsley
2019-05-31 18:34 ` Josh Poimboeuf
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