Messages in this thread | | | Date | Thu, 26 Feb 2009 14:22:27 +0100 | From | Ingo Molnar <> | Subject | Re: [PATCH 1/2] tracing/core: make the per cpu trace files in per cpu directories |
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* Ingo Molnar <mingo@elte.hu> wrote:
> * Frederic Weisbecker <fweisbec@gmail.com> wrote: > > > Impact: scale per cpu tracing > > > > The per cpu trace files are all in a single directory: > > /debug/tracing/per_cpu. In case of a large number of cpu, the > > content of this directory becomes messy so we create now one > > directory per cpu inside /debug/tracing/per_cpu which contain > > each their own trace_pipe and trace files. > > Applied to tip:tracing/ftrace, thanks Frederic!
The layout looks much more structured on a 16-way box now:
phoenix:/debug/tracing/per_cpu> ll total 0 drwxr-xr-x 2 root root 0 2009-02-26 14:19 cpu0 drwxr-xr-x 2 root root 0 2009-02-26 14:19 cpu1 drwxr-xr-x 2 root root 0 2009-02-26 14:19 cpu10 drwxr-xr-x 2 root root 0 2009-02-26 14:19 cpu11 drwxr-xr-x 2 root root 0 2009-02-26 14:19 cpu12 drwxr-xr-x 2 root root 0 2009-02-26 14:19 cpu13 drwxr-xr-x 2 root root 0 2009-02-26 14:19 cpu14 drwxr-xr-x 2 root root 0 2009-02-26 14:19 cpu15 drwxr-xr-x 2 root root 0 2009-02-26 14:19 cpu2 drwxr-xr-x 2 root root 0 2009-02-26 14:19 cpu3 drwxr-xr-x 2 root root 0 2009-02-26 14:19 cpu4 drwxr-xr-x 2 root root 0 2009-02-26 14:19 cpu5 drwxr-xr-x 2 root root 0 2009-02-26 14:19 cpu6 drwxr-xr-x 2 root root 0 2009-02-26 14:19 cpu7 drwxr-xr-x 2 root root 0 2009-02-26 14:19 cpu8 drwxr-xr-x 2 root root 0 2009-02-26 14:19 cpu9 phoenix:/debug/tracing/per_cpu> cd cpu0 phoenix:/debug/tracing/per_cpu/cpu0> ll total 0 -r--r--r-- 1 root root 0 2009-02-26 14:19 trace -r--r--r-- 1 root root 0 2009-02-26 14:19 trace_pipe phoenix:/debug/tracing/per_cpu/cpu0>
Ingo
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