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(parent: c03f09c) | patch
iocost: better trace vrate changes
authorTejun Heo <tj@kernel.org>
Wed, 25 Sep 2019 23:02:07 +0000 (16:02 -0700)
committerJens Axboe <axboe@kernel.dk>
Thu, 26 Sep 2019 07:11:58 +0000 (01:11 -0600)
commit647b7513259dde9f30495d18cd33f8eadb532d47
treec6bf9df51f0bb42339a3c2c929b990b2c485fc48tree | snapshot
parentc03f09c9d4eec808c4b1f5111187dc076084b1bccommit | diff
iocost: better trace vrate changes

vrate_adj tracepoint traces vrate changes; however, it does so only
when busy_level is non-zero.  busy_level turning to zero can sometimes
be as interesting an event.  This patch also enables vrate_adj
tracepoint on other vrate related events - busy_level changes and
non-zero nr_lagging.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
block/blk-iocost.c diff | blob | history
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