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Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf)

From Mike Galbraith <efault@gmx.de>
Newsgroups linux.kernel
Subject Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf)
Date 2017-07-13 05:10 +0200
Message-ID <u2CFP-5N-1@gated-at.bofh.it> (permalink)
References <u25qx-454-3@gated-at.bofh.it> <u2ysy-5Ke-1@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Wed, 2017-07-12 at 15:30 -0700, Andi Kleen wrote:
> Josh Poimboeuf <jpoimboe@redhat.com> writes:
> >
> > The ORC data format does have a few downsides compared to DWARF.  The
> > ORC unwind tables take up ~1MB more memory than DWARF eh_frame tables.
> >
> Can we have an option to just use dwarf instead? For people
> who don't want to waste a MB+ to solve a problem that doesn't
> exist (as proven by many years of opensuse kernel experience)

Sure the dwarf unwinder works well for crashes, but at the price of
demolishing ftrace/perf utility.

	-Mike

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Thread

[PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Josh Poimboeuf <jpoimboe@redhat.com> - 2017-07-11 17:40 +0200
  Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Ingo Molnar <mingo@kernel.org> - 2017-07-12 10:30 +0200
    Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Josh Poimboeuf <jpoimboe@redhat.com> - 2017-07-12 16:50 +0200
      Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Ingo Molnar <mingo@kernel.org> - 2017-07-12 21:30 +0200
        Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Josh Poimboeuf <jpoimboe@redhat.com> - 2017-07-14 19:20 +0200
  Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Andres Freund <andres@anarazel.de> - 2017-07-12 23:50 +0200
    Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Josh Poimboeuf <jpoimboe@redhat.com> - 2017-07-13 00:40 +0200
      Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Andres Freund <andres@anarazel.de> - 2017-07-13 00:40 +0200
        Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Josh Poimboeuf <jpoimboe@redhat.com> - 2017-07-13 00:50 +0200
          Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Andres Freund <andres@anarazel.de> - 2017-07-13 01:00 +0200
      Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Peter Zijlstra <peterz@infradead.org> - 2017-07-13 09:20 +0200
        Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Peter Zijlstra <peterz@infradead.org> - 2017-07-13 11:00 +0200
          Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Ingo Molnar <mingo@kernel.org> - 2017-07-13 11:20 +0200
            Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Josh Poimboeuf <jpoimboe@redhat.com> - 2017-07-13 14:20 +0200
              Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Josh Poimboeuf <jpoimboe@redhat.com> - 2017-07-13 14:30 +0200
                Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Josh Poimboeuf <jpoimboe@redhat.com> - 2017-07-13 14:40 +0200
                Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Ingo Molnar <mingo@kernel.org> - 2017-07-14 10:40 +0200
              Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Ingo Molnar <mingo@kernel.org> - 2017-07-14 10:30 +0200
        Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Peter Zijlstra <peterz@infradead.org> - 2017-07-13 11:00 +0200
  Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Andi Kleen <andi@firstfloor.org> - 2017-07-13 00:40 +0200
    Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Josh Poimboeuf <jpoimboe@redhat.com> - 2017-07-13 00:50 +0200
      Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Andi Kleen <andi@firstfloor.org> - 2017-07-13 06:30 +0200
        Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Josh Poimboeuf <jpoimboe@redhat.com> - 2017-07-13 15:20 +0200
      Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Ingo Molnar <mingo@kernel.org> - 2017-07-13 11:30 +0200
    Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Andy Lutomirski <luto@kernel.org> - 2017-07-13 01:30 +0200
    Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Mike Galbraith <efault@gmx.de> - 2017-07-13 05:10 +0200
      Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Andi Kleen <andi@firstfloor.org> - 2017-07-13 06:20 +0200
        Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Mike Galbraith <efault@gmx.de> - 2017-07-13 06:40 +0200
          Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Andi Kleen <andi@firstfloor.org> - 2017-07-13 06:50 +0200
            Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Mike Galbraith <efault@gmx.de> - 2017-07-13 07:30 +0200
            Re: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf) Jiri Kosina <jikos@kernel.org> - 2017-07-13 14:10 +0200

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