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From: Peter Zijlstra <peterz@infradead.org>
To: Fangrui Song <maskray@google.com>
Cc: Bill Wendling <morbo@google.com>, "Jose E. Marchesi" <jemarch@gnu.org>,
	Ruud van der Pas <ruud.vanderpas@oracle.com>,
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Subject: Re: plumbers session on profiling?
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On Fri, Jul 01, 2022 at 12:34:09PM -0700, Fangrui Song wrote:

> Instrumentation based PGO has the nice property that it works with all
> architectures (the compiler supports) and does not rely on hardware
> support. In addition, it collects indirect call targets and string
> operation sizes which are very difficult/impossible for sample based
> PGO.

LBR samples should provide the indirect call targets just fine.