diff --git a/[refs] b/[refs] index 9d1822602fb3..a8cff79cfa47 100644 --- a/[refs] +++ b/[refs] @@ -1,2 +1,2 @@ --- -refs/heads/master: f9a22239257561df80ef54fc8f31880e2fb2a27b +refs/heads/master: 9bb7bc942d3da606f184ac6a4dfc7e4d470c831b diff --git a/trunk/Documentation/cpu-freq/cpufreq-stats.txt b/trunk/Documentation/cpu-freq/cpufreq-stats.txt deleted file mode 100644 index e2d1e760b4ba..000000000000 --- a/trunk/Documentation/cpu-freq/cpufreq-stats.txt +++ /dev/null @@ -1,128 +0,0 @@ - - CPU frequency and voltage scaling statictics in the Linux(TM) kernel - - - L i n u x c p u f r e q - s t a t s d r i v e r - - - information for users - - - - Venkatesh Pallipadi - -Contents -1. Introduction -2. Statistics Provided (with example) -3. Configuring cpufreq-stats - - -1. Introduction - -cpufreq-stats is a driver that provices CPU frequency statistics for each CPU. -This statistics is provided in /sysfs as a bunch of read_only interfaces. This -interface (when configured) will appear in a seperate directory under cpufreq -in /sysfs (/devices/system/cpu/cpuX/cpufreq/stats/) for each CPU. -Various statistics will form read_only files under this directory. - -This driver is designed to be independent of any particular cpufreq_driver -that may be running on your CPU. So, it will work with any cpufreq_driver. - - -2. Statistics Provided (with example) - -cpufreq stats provides following statistics (explained in detail below). -- time_in_state -- total_trans -- trans_table - -All the statistics will be from the time the stats driver has been inserted -to the time when a read of a particular statistic is done. Obviously, stats -driver will not have any information about the the frequcny transitions before -the stats driver insertion. - --------------------------------------------------------------------------------- -:/sys/devices/system/cpu/cpu0/cpufreq/stats # ls -l -total 0 -drwxr-xr-x 2 root root 0 May 14 16:06 . -drwxr-xr-x 3 root root 0 May 14 15:58 .. --r--r--r-- 1 root root 4096 May 14 16:06 time_in_state --r--r--r-- 1 root root 4096 May 14 16:06 total_trans --r--r--r-- 1 root root 4096 May 14 16:06 trans_table --------------------------------------------------------------------------------- - -- time_in_state -This gives the amount of time spent in each of the frequencies supported by -this CPU. The cat output will have "