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| author | Paolo Valente <paolo.valente@linaro.org> | 2021-01-25 22:02:43 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2021-01-26 00:18:29 +0300 |
| commit | eb2fd80f9d2c515a901599362e83bc3356fc5e97 (patch) | |
| tree | dffa32379b2d24d28f0ba317b69cb8fbbfe3282d /Documentation/ia64 | |
| parent | 3a905c37c3510ea6d7cfcdfd0f272ba731286560 (diff) | |
| download | linux-eb2fd80f9d2c515a901599362e83bc3356fc5e97.tar.xz | |
block, bfq: replace mechanism for evaluating I/O intensity
Some BFQ mechanisms make their decisions on a bfq_queue basing also on
whether the bfq_queue is I/O bound. In this respect, the current logic
for evaluating whether a bfq_queue is I/O bound is rather rough. This
commits replaces this logic with a more effective one.
The new logic measures the percentage of time during which a bfq_queue
is active, and marks the bfq_queue as I/O bound if the latter if this
percentage is above a fixed threshold.
Tested-by: Jan Kara <jack@suse.cz>
Signed-off-by: Paolo Valente <paolo.valente@linaro.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'Documentation/ia64')
0 files changed, 0 insertions, 0 deletions