From mboxrd@z Thu Jan 1 00:00:00 1970 From: Valdis.Kletnieks@vt.edu (Valdis.Kletnieks at vt.edu) Date: Sun, 25 Jan 2015 22:45:50 -0500 Subject: New member In-Reply-To: Your message of "Sun, 25 Jan 2015 16:29:00 -0800." References: <100098.1422210715@turing-police.cc.vt.edu> <20150125214324.GA17688@ozymandias.uchicago.edu> Message-ID: <9380.1422243950@turing-police.cc.vt.edu> To: kernelnewbies@lists.kernelnewbies.org List-Id: kernelnewbies.lists.kernelnewbies.org On Sun, 25 Jan 2015 16:29:00 -0800, "Robert P. J. Day" said: > what's wrong with ftrace? but seriously, you know what newcomers > might get some value out of doing if they want to contribute? writing > some really, really good documentation or tutorials. If somebody were to do a really good "Top 25 perf/ftrace tricks/recipes" for the best incantations for common use cases, they'd have a hard time buying themselves a beer at a gathering of Linux geeks. ;) For example: "I don't care the exact function, but which .o or .so is my program spending its time in?" (And yes, this *does* come up a lot -for large programs, there's usually no one single function that burns enough CPU time to dominate - but if you look at the top 5 shared libraries, you can pretty much tell "Yeah, those 5 are where I expect it to be burning a lot of time" or "Wow, why is *that* library I've never heard of at number 2 on the list?"...) -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 848 bytes Desc: not available Url : http://lists.kernelnewbies.org/pipermail/kernelnewbies/attachments/20150125/5830ca0e/attachment.bin