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| author | Paolo Valente <paolo.valente@linaro.org> | 2017-04-12 18:23:19 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2017-04-19 08:30:26 -0600 |
| commit | e01eff01d5c81f4dbba186299b16b08aa7316d5b (patch) | |
| tree | 9a6cd957d0ca463247d3e57438cfec5e2702a661 /scripts/objdiff | |
| parent | bf2b79e7c4b312aa6e1c661fb27e0dc4dd42f2c2 (diff) | |
| download | cachepc-linux-e01eff01d5c81f4dbba186299b16b08aa7316d5b.tar.gz cachepc-linux-e01eff01d5c81f4dbba186299b16b08aa7316d5b.zip | |
block, bfq: boost the throughput with random I/O on NCQ-capable HDDs
This patch is basically the counterpart, for NCQ-capable rotational
devices, of the previous patch. Exactly as the previous patch does on
flash-based devices and for any workload, this patch disables device
idling on rotational devices, but only for random I/O. In fact, only
with these queues disabling idling boosts the throughput on
NCQ-capable rotational devices. To not break service guarantees,
idling is disabled for NCQ-enabled rotational devices only when the
same symmetry conditions considered in the previous patches hold.
Signed-off-by: Paolo Valente <paolo.valente@linaro.org>
Signed-off-by: Arianna Avanzini <avanzini.arianna@gmail.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'scripts/objdiff')
0 files changed, 0 insertions, 0 deletions