Re: [PATCH v3 00/14] perf, x86: Haswell LBR call stack support

[Andy Lutomirski]

On Wed, Feb 26, 2014 at 11:19 AM, David Ahern <dsahern@xxxxxxxxx> 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

>



-- 
Andy Lutomirski
AMA Capital Management, LLC
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