Re: [PATCH v2 0/4] thermal: re-calculate k_po/k_pu when update sustainable power
From: Leo Yan
Date: Wed Jan 06 2016 - 03:48:36 EST
Hi all,
On Wed, Jan 06, 2016 at 04:30:19PM +0800, Leo Yan wrote:
> k_po/k_pu are two proportional term constants and essentially they have
> fixed ratio compared with sustainable power. In current implementation,
> k_po and k_pu are absolute value after calculation and cannot represent
> the ratio relationship with sustainable power; as a result, when change
> sustainable power we cannot smoothly change proportional term constant.
>
> So this patch series introduces k_po_ratio and k_pu_ratio, which
> represent the ratio value compared against sustainable power. Also add
> sys file system nodes for them for easily update them from userspace and
> update a bit in documentation.
>
> Changes from v1:
> * According to Eduardo' comments, move code from thermal_core to
> power_allocator file
> * According to Daniel's review, v1 will introduce accumulated rounding
> errors; v2 patches can dismiss this issue
>
> Leo Yan (4):
> thermal: power_allocator: rework proportional parameter
> thermal: power_allocator: change k_pu_ratio/k_po_ratio as percentage
> thermal: add sys node for k_pu_ratio/k_po_ratio
> thermal: power_allocator: document k_pu_ratio/k_po_ratio
>
> Documentation/thermal/power_allocator.txt | 15 +++++++++++----
> drivers/thermal/power_allocator.c | 18 ++++++++++++------
> drivers/thermal/thermal_core.c | 23 +++++++++++++++++++++--
> include/linux/thermal.h | 4 ++--
> 4 files changed, 46 insertions(+), 14 deletions(-)
Sorry for confusion.
I recognized I used duplicated version number, please drop this series;
I will send a new v3 series.
Thanks,
Leo Yan
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