lkml.org 
[lkml]   [2009]   [Dec]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 2/4] ftrace - add function_duration tracer
Steven Rostedt wrote:
> On Thu, 2009-12-10 at 13:13 -0800, Tim Bird wrote:
>> I have some patches ...
>> to make it possible to use arbitrary ftrace plugins
>> at boot time. (There are issues with the current code for
>> anything other than the bootgraph plugin).
>
> We already have a way to enable arbitrary ftrace plugins at boot time:
>
> Try ftrace=function on the command line.

That's what I'm using, but my function_duration tracer didn't
work, because of an issue initializing the trace-option files.
The problem was that the debugfs wasn't initialized yet.
I worked up a simple fix to defer initializing the
trace-option files in debugfs until later in the boot
sequence.

Maybe you've already fixed this. I'll check out the
latest code and see if I still have problems with it.
If so, I'll send the patches (which are quite small)
for consideration.
-- Tim

=============================
Tim Bird
Architecture Group Chair, CE Linux Forum
Senior Staff Engineer, Sony Corporation of America
=============================



\
 
 \ /
  Last update: 2009-12-10 23:29    [W:0.076 / U:0.028 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site