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SubjectRe: [PATCH v3 0/3] Implement BFQ per-device weight interface
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Hi Jens,
is this patch series fine now?

Thanks,
Paolo

> Il giorno 28 ago 2019, alle ore 05:54, Fam Zheng <zhengfeiran@bytedance.com> ha scritto:
>
> v3: Pick up rev-by and ack-by from Paolo and Tejun.
> Add commit message to patch 3.
>
> (Revision starting from v2 since v1 was used off-list)
>
> Hi Paolo and others,
>
> This adds to BFQ the missing per-device weight interfaces:
> blkio.bfq.weight_device on legacy and io.bfq.weight on unified. The
> implementation pretty closely resembles what we had in CFQ and the parsing code
> is basically reused.
>
> Tests
> =====
>
> Using two cgroups and three block devices, having weights setup as:
>
> Cgroup test1 test2
> ============================================
> default 100 500
> sda 500 100
> sdb default default
> sdc 200 200
>
> cgroup v1 runs
> --------------
>
> sda.test1.out: READ: bw=913MiB/s
> sda.test2.out: READ: bw=183MiB/s
>
> sdb.test1.out: READ: bw=213MiB/s
> sdb.test2.out: READ: bw=1054MiB/s
>
> sdc.test1.out: READ: bw=650MiB/s
> sdc.test2.out: READ: bw=650MiB/s
>
> cgroup v2 runs
> --------------
>
> sda.test1.out: READ: bw=915MiB/s
> sda.test2.out: READ: bw=184MiB/s
>
> sdb.test1.out: READ: bw=216MiB/s
> sdb.test2.out: READ: bw=1069MiB/s
>
> sdc.test1.out: READ: bw=621MiB/s
> sdc.test2.out: READ: bw=622MiB/s
>
> Fam Zheng (3):
> bfq: Fix the missing barrier in __bfq_entity_update_weight_prio
> bfq: Extract bfq_group_set_weight from bfq_io_set_weight_legacy
> bfq: Add per-device weight
>
> block/bfq-cgroup.c | 151 +++++++++++++++++++++++++++++++++-----------
> block/bfq-iosched.h | 3 +
> block/bfq-wf2q.c | 2 +
> 3 files changed, 119 insertions(+), 37 deletions(-)
>
> --
> 2.22.1
>

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