Re: [ANNOUNCE] New utility: 'trace'

[Darren Hart]

On 11/16/2010 02:09 PM, Darren Hart wrote:
> On 11/16/2010 02:03 PM, Peter Zijlstra wrote:
> > On Tue, 2010-11-16 at 22:59 +0100, Ingo Molnar wrote:
> > > Would you be interested in helping out with (and testing) such a more
> > > generic
> > > approach?
> >
> > how about having perf-record open a named pipe and rewriting everything
> > that comes in through that as an event and storing it in the buffer?
>
> When I'm tracing an app or test-case, I want to be able to quickly add
> and change strings. I like the trace_printk sort of access as it avoids
> having to do a bunch of string formatting (sprintf()) calls in the test
> app.

Sorry - fprintf would work for Peter's suggestion. I had the PR_SET_NAME 
with a short string or another call with jsut a plain C string - those 
would require the user doing the string formatting first.

--
Darren Hart
Yocto Linux Kernel
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