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Message-ID: <AANLkTilJLcdfK-vgqGdXyaZ_bQ1BDFmQl619egtGAA4i@mail.gmail.com> Date: Tue, 11 May 2010 23:10:36 +0200 From: Pierre Tardy <tardyp@...il.com> To: linux-kernel@...r.kernel.org, rostedt@...dmis.org, mathieu.desnoyers@...icios.com, arjan@...radead.org, ziga.mahkovec@...il.com Subject: [RFC] PyTimechart Hello, PyTimechart is another implementation of two very useful tools available for the linux community: perf-timechart ( http://blog.fenrus.org/?p=5 ) and bootchart ( http://www.bootchart.org/ ) The two tools share a common idea of making their output to SVG files. While it is a very good idea for small traces, the generated SVG can be very heavy, and turns out to be good stress tests for inkscape developers... PyTimechart is a tool that parses ftrace text traces, and display them with the help of a very powerful dynamic plot framework, Chaco ( http://code.enthought.com/chaco/ ) The GUI makes the best it can to ease the browsing of huge traces. The best is to look at those two 30s screencasts, to figure out how that work. a look at mplayer startup: http://tardyp.free.fr/pytimechart/mplayer_start.mp4 a look at ubuntu boot: http://tardyp.free.fr/pytimechart/boot.mp4 This tool still is in the state of a prototype, I dont know if it worth to continue to improve it or to implement it ideas in LTTV or Kernel Shark. It is actually very useful in its current form ( http://elinux.org/images/0/07/Effect_of_wakeups_on_Moorestown_power.pdf ), and will work without recompiling the kernel of recent distros. the source code with build instruction is located here http://gitorious.org/pytimechart What do you think? Regards, -- Pierre -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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