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On Sep 24, 2014 2:34 AM, "James" <wireless@×××××××××××.com> wrote: |
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> Hello |
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> PyTimeChart is another wonderful tool that complements |
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> Ftrace/trace-cmd/KernelShark. [1] The systemd supporters would be keenly |
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> wise if they added pytimechart to Gentoo, so those (systemd) reticent to |
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> change, can actually see just how wonderful systemd is Here in |
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> slide (26) we see "intel" extolling systemd. If Intel thinks systemd |
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> is wonderful, then it must be wonderful. (?) [2] as shown in the paper |
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> "Elcell_tardy.pdf". |
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> PyTimeChart is also wonderful in that it provides a graphical way to |
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> spot problems quickly. Most major (linux) distros have both PyTimeChart |
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> and Ftrace/trace-cmd/KernelShark. Together folks use PyTimeChart to |
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> monitor and identify low-level or low-level-application-interaction |
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> problems, and then use Ftrace/trace-cmd/KernelShark for fine grain |
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> filtering, collection and analysis of those |
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low-level-application-interaction |
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> issues. |
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Im just going to go out on a limb here, but is it possible that you dont |
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understand what either systemd or pytimechart do? |
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both your description of pytimechart and the rejection of intel's claim... |
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seem to point to a lack of understanding. |
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Intel isnt saying systemd is amazing only that it doesnt operate by |
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spawning many short-lived processes in the same way as upstart or sysvinit |
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(which start shell scripts which start programs). systemd starts the |
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services directly based on the contents of the units. |
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pytimechart cannot be used to monitor events - its just a visualizer for |
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existing trace mechanisms. |
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> I have not opened a bug requesting PyTimeChart. |
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perhaps you should. |
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> hth, |
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> James |
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> [1] https://pythonhosted.org/pytimechart/index.html |
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> [2] elinux.org/images/6/63/Elce11_tardy.pdf |
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