On Wed, 2010-05-12 at 16:48 +0200, Frederic Weisbecker wrote:
quoted text
> On Wed, May 12, 2010 at 03:37:27PM +0200, Pierre Tardy wrote:

quoted text
> But we don't yet support trace_printk in perf. May be we could wrap
> them in trace events.

Hmm, do we really want to do that?

We really need to get the perf and ftrace trace buffers combined. I
understand why perf chose to do the mmap buffers for the counting, but
for live streaming, it is very inefficient compared to splice.

I would hate to add more duplicate code to have perf support
trace_printk().

-- Steve



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