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| author | James Carr <carrja@google.com> | 2016-07-29 19:02:16 -0700 |
|---|---|---|
| committer | Amit Pundir <amit.pundir@linaro.org> | 2016-08-18 18:56:03 +0530 |
| commit | 96cb71b8c592d760ad2e22432052510615987c41 (patch) | |
| tree | c74710cf47496311a12534241ad66898fde12a50 /tools/perf/scripts/python | |
| parent | ee665a37d5251d8af6e2904f08f7cfd6fd35ca72 (diff) | |
Implement memory_state_time, used by qcom,cpubw
New driver memory_state_time tracks time spent in different DDR
frequency and bandwidth states.
Memory drivers such as qcom,cpubw can post updated state to the driver
after registering a callback. Processed by a workqueue
Bandwidth buckets are read in from device tree in the relevant qualcomm
section, can be defined in any quantity and spacing.
The data is exposed at /sys/kernel/memory_state_time, able to be read by
the Android framework.
Functionality is behind a config option CONFIG_MEMORY_STATE_TIME
Change-Id: I4fee165571cb975fb9eacbc9aada5e6d7dd748f0
Signed-off-by: James Carr <carrja@google.com>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions