Messages in this thread | | | Date | Wed, 21 Apr 2021 11:00:06 -0400 | From | Steven Rostedt <> | Subject | Re: [PATCH][RFC] tracing: Enable tracepoints via module parameters |
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On Wed, 21 Apr 2021 16:50:30 +0200 Rasmus Villemoes <linux@rasmusvillemoes.dk> wrote:
> I don't "want" anything. I just fail to see what advantage that proof of > concept would bring over the current dev_dbg implementation.
That you don't need to go through the console. The trace ring buffer is much faster than printk (you can record millions of traces a second, and barely notice the overhead, which is why you can trace scheduling and high frequency interrupts), and if you want, you get your very own buffer to record to, without any noise from anything else, with features like filtering, histograms, stack traces, etc.
The tracing infrastructure has a lot more to offer than printk does.
-- Steve
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