On Mon, 24 Jul 2017 21:40:24 +0000 "Brandt, Todd E" <[email protected]> wrote:
> Function graph tracing is indeed the target, as its the basis of the > bootgraph > tool. However, kprobes would work just as well. What's the difference in > effort > between enabling kprobes for early boot vs function graph trace? > Hmm, good question. But then again, if you are only worried about timings, tracing functions and looking at how long the next function happens after the one you are interested in, should give you a good idea of how long that function took. If there is more interest, I could spend some time seeing if I can get function graph tracing working early. -- Steve
