| commit | 09f6acf2eacad3a0f9a4b9f77e0b021f0cb45780 | [log] [tgz] |
|---|---|---|
| author | Arnaldo Carvalho de Melo <[email protected]> | Thu Sep 10 12:20:14 2015 -0300 |
| committer | Arnaldo Carvalho de Melo <[email protected]> | Mon Sep 14 12:50:26 2015 -0300 |
| tree | 20a9c7c055687daac544429dffb932629609dfcb | |
| parent | 2d729f6a8ac3edbf68de7239fab96c9736946af5 [diff] |
tools lib api cpu: Introduce cpu.[ch] to obtain cpu related information E.g.: $ ./cpu__get_max_freq 3200000 It does that, as Kan's patch does, by looking at these files: $ cat /sys/devices/system/cpu/online 0-3 $ ./sysfs__read_ull devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq=3200000 $ I.e. find out the first online CPU, then read its cpufreq info. But do it in tools/lib/api/, so that other tools/ living code can use it, not just perf. Based-on-a-patch-by: Kan Liang <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Kan Liang <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>