Re: [RFC PATCH 3/5] tracing/hwlat: Implement the per-cpu mode

2021-04-15 Thread Steven Rostedt
On Thu, 15 Apr 2021 15:22:52 +0200 Daniel Bristot de Oliveira wrote: > >> --- a/kernel/trace/trace_hwlat.c > >> +++ b/kernel/trace/trace_hwlat.c > >> @@ -34,7 +34,7 @@ > >> * Copyright (C) 2008-2009 Jon Masters, Red Hat, Inc. > >> * Copyright (C) 2013-2016 Steven Rostedt, Red Hat, Inc. > >>

Re: [RFC PATCH 3/5] tracing/hwlat: Implement the per-cpu mode

2021-04-15 Thread Daniel Bristot de Oliveira
On 4/14/21 4:41 PM, Steven Rostedt wrote: > On Thu, 8 Apr 2021 16:13:21 +0200 > Daniel Bristot de Oliveira wrote: > >> Implements the per-cpu mode in which a sampling thread is created for >> each cpu in the "cpus" (and tracing_mask). >> >> The per-cpu mode has the potention to speed up the hwla

Re: [RFC PATCH 3/5] tracing/hwlat: Implement the per-cpu mode

2021-04-14 Thread Steven Rostedt
On Thu, 8 Apr 2021 16:13:21 +0200 Daniel Bristot de Oliveira wrote: > Implements the per-cpu mode in which a sampling thread is created for > each cpu in the "cpus" (and tracing_mask). > > The per-cpu mode has the potention to speed up the hwlat detection by > running on multiple CPUs at the sa

[RFC PATCH 3/5] tracing/hwlat: Implement the per-cpu mode

2021-04-08 Thread Daniel Bristot de Oliveira
Implements the per-cpu mode in which a sampling thread is created for each cpu in the "cpus" (and tracing_mask). The per-cpu mode has the potention to speed up the hwlat detection by running on multiple CPUs at the same time. Cc: Jonathan Corbet Cc: Steven Rostedt Cc: Ingo Molnar Cc: Peter Zij