Il giorno 6 ago 2021, alle ore 04:08, Yu Kuai [off-list ref] ha scritto:

Chagnes in V2:
- as suggested by Paolo, add support to track if root_group have any
pending requests, and use that to handle the situation when only one
group is activated while root group doesn't have any pending requests.
- modify commit message in patch 2

Hi,
sorry for my delay.  I've just finished reviewing your new patches.
As I already said, I like the improvement you are making.  Now the way
you make it also seems effective to me.  I still have a design
concern.  You will find it in my detailed comments on your patches.

Thanks
Paolo

Yu Kuai (4):
 block, bfq: add support to track if root_group have any pending
   requests
 block, bfq: do not idle if only one cgroup is activated
 block, bfq: add support to record request size information
 block, bfq: consider request size in bfq_asymmetric_scenario()

block/bfq-iosched.c | 69 ++++++++++++++++++++++++++++++++++++++-------
block/bfq-iosched.h | 29 +++++++++++++++++--
block/bfq-wf2q.c    | 37 +++++++++++++++---------
3 files changed, 110 insertions(+), 25 deletions(-)

-- 
2.31.1