Messages in this thread | | | From | Stratos Karafotis <> | Subject | [PATCH 0/2] cpufreq: ondemand: Eliminate the deadband effect | Date | Mon, 30 Jun 2014 19:59:32 +0300 |
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Hi all,
This patchset changes slightly the calculation of target frequency to eliminate the deadband effect (explained in patch 2 changelog) that it seems to slow down the CPU in low and medium loads.
Patch 1 introduces a new relation (RELATION_C) for the next frequency selection, which chooses the closest frequency to target.
Patch 2 is the actual change to ondemand governor.
You may find graphs with the 'deadband' effect and benchmark results: https://docs.google.com/spreadsheets/d/16kDBh5lyc6YvBnoS1hUa1t2O38z0xrWvaEj5XtJ8auw/edit#gid=2072493052
Thanks
Stratos Karafotis (2): cpufreq: Introduce new relation for freq selection cpufreq: ondemand: Eliminate the deadband effect in low loads
drivers/cpufreq/cpufreq_ondemand.c | 11 +++++++---- drivers/cpufreq/freq_table.c | 12 +++++++++++- include/linux/cpufreq.h | 1 + 3 files changed, 19 insertions(+), 5 deletions(-)
-- 1.9.3
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