Reading debug/tracing info

Prateek Sharma prateek3.14 at gmail.com
Sat Aug 20 06:10:55 EDT 2011


On Sat, Aug 20, 2011 at 3:20 PM, Prateek Sharma <prateek3.14 at gmail.com>wrote:

> Hello all,
>     I am learning how to add static trace points via trace_events.
> I am seeing the trace using 'cat /sys/kernel/debug/tracing/trace' .
> Naturally the tracing buffer size is limited. My question is, what is the
> recommended way of reading trace data?
> Ive looked at perf record/report, but so far, i have only managed to get
> aggregated statistics, or complete dumps.
> What i need is just  a way to collect all the trace output to one file.
> Basically i am using the trace events as  a souped up printk (since i need
> to collect large amounts of traces).
> Do i need to use LTTng/viewer or something for this task?
>
> Thanks!
>

I've already found the solution to this, turns out there is trace_pipe as
well.

Sorry!
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