Messages in this thread | | | From | Andy Lutomirski <> | Date | Wed, 26 Feb 2014 11:25:41 -0800 | Subject | Re: [PATCH v3 00/14] perf, x86: Haswell LBR call stack support |
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On Wed, Feb 26, 2014 at 11:19 AM, David Ahern <dsahern@gmail.com> wrote: > On 2/26/14, 11:59 AM, Andy Lutomirski wrote: > >> I wonder if anyone who uses perf for userspace profiling *ever* uses >> FP and gets away with it. There's precious little userspace software >> compiled with frame pointers these days on most architectures. > > > yes and yes. With control over the entire stack we are making sure > frame-pointers are enabled as much as possible. >
I'm curious why.
Maybe this should be a config option. Anyone using a standard distro is running a nearly completely frame-pointer-omitted userspace these days.
--Andy
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-- Andy Lutomirski AMA Capital Management, LLC
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