Hi, Jens! Hi, Ming! Hi, Christoph! Hi, Bart! Friendly ping ... The 'util' reported by iostat is very important for users, they don't have much choise to get disk status, while 'util' has been inaccurate for a long time unnecessarily. I really think patch 1 is meaningful. Patch 2 also tries to fix a problem by our customer that util can sometimes be huge. The root cause is that 'inflight' is account from blk_mq_start_request() while 'io_ticks' is account from blk_account_io_start(), there is a gap. I let 'inflight' to be account from blk_account_io_start() as well, please let me know if this is not good. Thanks! Kuai 在 2024/03/23 11:59, Yu Kuai 写道:
From: Yu Kuai <yukuai3@xxxxxxxxxx> Yu Kuai (2): block: support to account io_ticks precisely block: remove blk_mq_in_flight() and blk_mq_in_flight_rw() block/blk-core.c | 9 +++++---- block/blk-merge.c | 2 ++ block/blk-mq.c | 36 ++++-------------------------------- block/blk-mq.h | 5 ----- block/blk.h | 1 + block/genhd.c | 20 ++++---------------- 6 files changed, 16 insertions(+), 57 deletions(-)
