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| author |   Joseph Qi <joseph.qi@linux.alibaba.com> | 2021-02-23 09:55:28 +0800 |
|---|---|---|
| committer |   Jens Axboe <axboe@kernel.dk> | 2021-03-02 11:25:38 -0700 |
| commit | 4168a8d27ed3a00f160e7f885c956f060d2a0741 (patch) | |
| tree | 8189c7bea8cf69b4f8d8c155cc446691e01bb84e /Documentation | |
| parent | rsxx: remove unused including <linux/version.h> (diff) | |
| download | linux-dev-4168a8d27ed3a00f160e7f885c956f060d2a0741.tar.xz linux-dev-4168a8d27ed3a00f160e7f885c956f060d2a0741.zip | |
block/bfq: update comments and default value in docs for fifo_expire
Correct the comments since bfq_fifo_expire[0] is for async request,
while bfq_fifo_expire[1] is for sync request.
Also update docs, according the source code, the default
fifo_expire_async is 250ms, and fifo_expire_sync is 125ms.
Signed-off-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Acked-by: Paolo Valente <paolo.valente@linaro.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/block/bfq-iosched.rst | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/Documentation/block/bfq-iosched.rst b/Documentation/block/bfq-iosched.rst index 19d4d1570cee..66c5a4e54130 100644 --- a/Documentation/block/bfq-iosched.rst +++ b/Documentation/block/bfq-iosched.rst @@ -430,13 +430,13 @@ fifo_expire_async ----------------- This parameter is used to set the timeout of asynchronous requests. Default -value of this is 248ms. +value of this is 250ms. fifo_expire_sync ---------------- This parameter is used to set the timeout of synchronous requests. Default -value of this is 124ms. In case to favor synchronous requests over asynchronous +value of this is 125ms. In case to favor synchronous requests over asynchronous one, this value should be decreased relative to fifo_expire_async. low_latency |