Re: [PATCH V4 00/16] Introduce the BFQ I/O scheduler

From: Paolo Valente
Date: Wed Apr 19 2017 - 05:24:22 EST



> Il giorno 12 apr 2017, alle ore 18:23, Paolo Valente <paolo.valente@xxxxxxxxxx> ha scritto:
>
> Hi,
> new patch series, addressing (both) issues raised by Bart [1], and
> with block/Makefile fixed as suggested by Bart [2].
>

Hi Jens,
apparently no complain of any sort on this last series. Do you think
we could make it for 4.12, or shall we aim at 4.13?

Thanks,
Paolo

> Thanks,
> Paolo
>
> [1] https://lkml.org/lkml/2017/3/31/393
> [2] https://lkml.org/lkml/2017/4/12/502
>
> Arianna Avanzini (4):
> block, bfq: add full hierarchical scheduling and cgroups support
> block, bfq: add Early Queue Merge (EQM)
> block, bfq: reduce idling only in symmetric scenarios
> block, bfq: handle bursts of queue activations
>
> Paolo Valente (12):
> block, bfq: introduce the BFQ-v0 I/O scheduler as an extra scheduler
> block, bfq: improve throughput boosting
> block, bfq: modify the peak-rate estimator
> block, bfq: add more fairness with writes and slow processes
> block, bfq: improve responsiveness
> block, bfq: reduce I/O latency for soft real-time applications
> block, bfq: preserve a low latency also with NCQ-capable drives
> block, bfq: reduce latency during request-pool saturation
> block, bfq: boost the throughput on NCQ-capable flash-based devices
> block, bfq: boost the throughput with random I/O on NCQ-capable HDDs
> block, bfq: remove all get and put of I/O contexts
> block, bfq: split bfq-iosched.c into multiple source files
>
> Documentation/block/00-INDEX | 2 +
> Documentation/block/bfq-iosched.txt | 531 ++++
> block/Kconfig.iosched | 21 +
> block/Makefile | 2 +
> block/bfq-cgroup.c | 1139 ++++++++
> block/bfq-iosched.c | 5047 +++++++++++++++++++++++++++++++++++
> block/bfq-iosched.h | 942 +++++++
> block/bfq-wf2q.c | 1616 +++++++++++
> include/linux/blkdev.h | 2 +-
> 9 files changed, 9301 insertions(+), 1 deletion(-)
> create mode 100644 Documentation/block/bfq-iosched.txt
> create mode 100644 block/bfq-cgroup.c
> create mode 100644 block/bfq-iosched.c
> create mode 100644 block/bfq-iosched.h
> create mode 100644 block/bfq-wf2q.c
>
> --
> 2.10.0