| Message ID | 1589869525-29893-1-git-send-email-guohanjun@huawei.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | cpuidle: Make cpuidle governor switchable to be the default behaviour | expand |
On 2020/5/19 14:25, Hanjun Guo wrote: > This is the formal patch set after the RFC v2 [0]. > > For now cpuidle governor can be switched via sysfs only when the > boot option "cpuidle_sysfs_switch" is passed, but it's useful > to switch the governor to adapt to different workloads, especially > after TEO and haltpoll governors were introduced. > > Make cpuidle governor switchable to be the default behaviour by > removing the sysfs_switch and switch attributes, also update the > document as well. > > Patch 1/6 and 2/6 are bugfix patch which can be triggered if the > governor name is 15 characters, it is not a 'real' bug for now as we > don't have such usecases, so we can merge them together via this > patchset. > > Patch 3/6 and 4/6 are the functional update to make cpuidle governor > switchable to be the default behaviour. > > Patch 5/6 and 6/6 are the document update. > > Changes since RFC v2: > - Remove sizeof(char) in patch 1/6; > - Fix some minor typos; > - Adding Review/Test/ACK tags. Forgot to mention that this patch set is rebased on linux-next branch of linux-pm.git Thanks Hanjun
This is the formal patch set after the RFC v2 [0]. For now cpuidle governor can be switched via sysfs only when the boot option "cpuidle_sysfs_switch" is passed, but it's useful to switch the governor to adapt to different workloads, especially after TEO and haltpoll governors were introduced. Make cpuidle governor switchable to be the default behaviour by removing the sysfs_switch and switch attributes, also update the document as well. Patch 1/6 and 2/6 are bugfix patch which can be triggered if the governor name is 15 characters, it is not a 'real' bug for now as we don't have such usecases, so we can merge them together via this patchset. Patch 3/6 and 4/6 are the functional update to make cpuidle governor switchable to be the default behaviour. Patch 5/6 and 6/6 are the document update. Changes since RFC v2: - Remove sizeof(char) in patch 1/6; - Fix some minor typos; - Adding Review/Test/ACK tags. [0]:https://patchwork.kernel.org/cover/11519511/ Hanjun Guo (6): cpuidle: sysfs: Fix the overlap for showing available governors cpuidle: sysfs: Accept governor name with 15 characters cpuidle: Make cpuidle governor switchable to be the default behaviour cpuidle: sysfs: Remove sysfs_switch and switch attributes Documentation: cpuidle: update the document Documentation: ABI: make current_governer_ro as a candidate for removal Documentation/ABI/obsolete/sysfs-cpuidle | 9 ++++ Documentation/ABI/testing/sysfs-devices-system-cpu | 24 ++++----- Documentation/admin-guide/pm/cpuidle.rst | 20 ++++---- Documentation/driver-api/pm/cpuidle.rst | 5 +- drivers/cpuidle/sysfs.c | 58 ++++++---------------- 5 files changed, 45 insertions(+), 71 deletions(-) create mode 100644 Documentation/ABI/obsolete/sysfs-cpuidle