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From: Valdis.Kletnieks@vt.edu (Valdis.Kletnieks at vt.edu)
To: kernelnewbies@lists.kernelnewbies.org
Subject: New member
Date: Sun, 25 Jan 2015 22:45:50 -0500	[thread overview]
Message-ID: <9380.1422243950@turing-police.cc.vt.edu> (raw)
In-Reply-To: Your message of "Sun, 25 Jan 2015 16:29:00 -0800." <alpine.LFD.2.11.1501251620060.6942@localhost>

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?"...)

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  parent reply	other threads:[~2015-01-26  3:45 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-01-25 18:07 New member Satwantjit Kaur
2015-01-25 18:31 ` Valdis.Kletnieks at vt.edu
2015-01-25 19:16   ` Surendra Patil
     [not found]     ` <CAHzVKCBVrPfWG4oOW4M0zpc3r48SgraxgdfzNCZtZUJPeW1UZQ@mail.gmail.com>
2015-01-25 19:38       ` Fwd: " srinivas bakki
2015-01-25 20:10         ` Anuz Pratap Singh Tomar
2015-01-25 20:16           ` srinivas bakki
2015-01-25 20:31             ` Anuz Pratap Singh Tomar
2015-01-25 20:38               ` srinivas bakki
2015-01-25 20:42                 ` Anuz Pratap Singh Tomar
2015-01-25 21:29               ` Robert P. J. Day
2015-01-25 21:43                 ` Jonathan Jin
2015-01-25 21:47                   ` Robert P. J. Day
2015-01-26  0:18                     ` Jeshwanth Kumar N K
2015-01-26  0:29                       ` Robert P. J. Day
2015-01-26  1:28                         ` Jeshwanth Kumar N K
2015-01-26  3:45                         ` Valdis.Kletnieks at vt.edu [this message]
2015-01-26  6:56                           ` Anand Moon
2015-01-26 10:11                           ` Silvan Jegen
2015-01-26 22:20             ` John de la Garza
2015-01-26 22:13           ` John de la Garza
2015-01-27  9:13             ` Bjørn Mork
2015-01-25 19:48   ` Robert P. J. Day
2015-01-25 20:01     ` srinivas bakki
2015-01-26 11:53 ` Mulyadi Santosa
2015-01-27 17:32 ` Albert Coder
2015-01-27 17:52   ` Satwantjit Kaur

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