On Tue, Jan 03, 2017 at 06:10:26PM +0000, Will Deacon wrote: > The ARMv8.2 architecture introduces the Statistical Profiling Extension > (SPE). SPE provides a way to configure and collect profiling samples > from the CPU in the form of a trace buffer, which can be mapped directly > into userspace using the perf AUX buffer infrastructure. > > This patch adds support for SPE in the form of a new perf driver. >
Can you give a little high level overview of what exactly SPE is?
