Re: [PATCH 0/2] perf, intel: Add support for PEBS output to Intel PT

2019-05-08 Thread Peter Zijlstra
On Thu, May 02, 2019 at 01:50:20PM +0300, Alexander Shishkin wrote: > Hi Peter, > > New PEBS feature: output to Intel PT stream instead of the DS area. It's > theoretically useful in virtualized environments, where DS area can't be > used. It's also good for those who are interested in instruction

Re: [PATCH 0/2] perf, intel: Add support for PEBS output to Intel PT

2019-05-03 Thread Alexander Shishkin
Alexander Shishkin writes: > Hi Peter, > > New PEBS feature: output to Intel PT stream instead of the DS area. It's > theoretically useful in virtualized environments, where DS area can't be > used. It's also good for those who are interested in instruction trace for > context of the PEBS events.

[PATCH 0/2] perf, intel: Add support for PEBS output to Intel PT

2019-05-02 Thread Alexander Shishkin
Hi Peter, New PEBS feature: output to Intel PT stream instead of the DS area. It's theoretically useful in virtualized environments, where DS area can't be used. It's also good for those who are interested in instruction trace for context of the PEBS events. As PEBS goes, it can provide LBR contex