[lkml]   [2010]   [Mar]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [RFC][PATCH 2/3] perf: Take a hot regs snapshot for trace events
On Wed, 2010-03-03 at 18:16 +0100, Peter Zijlstra wrote:

> > This is what I actually was wondering about. Why is it a "perf only"
> > trace point instead of a TRACE_EVENT()?
> Because I wanted to make perf usable without having to rely on funny
> tracepoints. That is, I am less worried about committing software
> counters to ABI than I am about TRACE_EVENT(), which still gives me a
> terribly uncomfortable feeling.
> Also, building with all CONFIG_TRACE_*=n will still yield a usable perf,
> which is something the embedded people might fancy, all that TRACE stuff
> adds lots of code.

We could make TRACE_EVENT() into a perf only trace point with

Just saying that it would be nice if ftrace could also see page faults
and such.

-- Steve

 \ /
  Last update: 2010-03-03 18:49    [W:0.071 / U:36.524 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site