Re: [PATCH] perf: Ignore stripped vmlinux and fallback to kallsyms

Hi Anton, On Tue, 9 Sep 2014 08:59:29 +1000, Anton Blanchard wrote: > If a vmlinux is stripped, perf will use it and ignore kallsyms. We > end up with useless profiles where everything maps to a few > runtime symbols: > > 63.39% swapper [kernel.kallsyms] [k] hcall_real_table > 4.

[PATCH] perf: Ignore stripped vmlinux and fallback to kallsyms

If a vmlinux is stripped, perf will use it and ignore kallsyms. We end up with useless profiles where everything maps to a few runtime symbols: 63.39% swapper [kernel.kallsyms] [k] hcall_real_table 4.90% beam.smp [kernel.kallsyms] [k] hcall_real_table 4.44% beam