Re: [RFC PATCH 00/17] perf: Detached events

2017-09-13 Thread Alexander Shishkin
Borislav Petkov writes: > On Tue, Sep 05, 2017 at 04:30:09PM +0300, Alexander Shishkin wrote: >> Detached events: a new flag to the perf syscall makes a 'detached' event, >> which exists after its file descriptor is released. Not all detached events >> are per-thread AUX events: this tries to tak

Re: [RFC PATCH 00/17] perf: Detached events

2017-09-06 Thread Borislav Petkov
On Tue, Sep 05, 2017 at 04:30:09PM +0300, Alexander Shishkin wrote: > Detached events: a new flag to the perf syscall makes a 'detached' event, > which exists after its file descriptor is released. Not all detached events > are per-thread AUX events: this tries to take into account the need for > s

[RFC PATCH 00/17] perf: Detached events

2017-09-05 Thread Alexander Shishkin
Hi, I'm going to keep this short. Objective: include perf data (specifically, AUX/Intel PT) in process core dumps. Obstacles and how this patchset deals with them: (1) Need to be able to have perf events running without consumer (perf record) running in the background. Detached events: a new fla