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| Filename | Latest commit message | Latest commit date |
|---|---|---|
795fe54c2a
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
Signed-off-by: Fam Zheng <zhengfeiran@bytedance.com>
Acked-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Paolo Valente <paolo.valente@linaro.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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| COPYING | ||
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| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.