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| author | Stephane Gasparini <stephane.gasparini@linux.intel.com> | 2016-02-09 17:07:38 +0100 |
|---|---|---|
| committer | Davide Garberi <dade.garberi@gmail.com> | 2022-07-27 18:58:40 +0200 |
| commit | a3338ffae56bad7e310b0110482ff237727472ee (patch) | |
| tree | a5cd9d4301c5450675bce073536b1caab50ff9a5 /tools/perf/scripts/python | |
| parent | 17d411ef9b3e02b37192c7ca2efb0026c5d5b0ad (diff) | |
kernel/fs: fix I/O wait not accounted for RW O_DSYNC
When a process is doing Random Write with O_DSYNC flag
the I/O wait are not accounted in the kernel (get_cpu_iowait_time_us).
This is preventing the governor or the cpufreq driver to account for
I/O wait and thus use the right pstate
Signed-off-by: Stephane Gasparini <stephane.gasparini@linux.intel.com>
Signed-off-by: Philippe Longepe <philippe.longepe@linux.intel.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions