On 07/23/2014 02:50 AM, Rafael J. Wysocki wrote:
On Monday, June 30, 2014 07:59:32 PM Stratos Karafotis wrote:
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(-)
OK, I've queued up these two patches for 3.17. We'll see if anyone sees
any problems related to them. Thanks!
Thank you!
Stratos
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