Using fio 3.36 and the latest fio from git I noticed high cpu usage when replaying iolog: fio --name=replay --ioengine=io_uring --direct=1 --iodepth=1 --read_iolog=test.iolog --replay_redirect=/dev/nvme0n1 cpu : usr=50.27%, sys=33.79%, ctx=45686, majf=0, minf=11 When I revert this commit the cpu usage goes back to normal: https://git.kernel.dk/cgit/fio/commit/?id=b85c01f7e9dfc468eb78faf86692433e6105178d cpu : usr=0.23%, sys=0.56%, ctx=219444, majf=0, minf=11 Is this a bug or expected?
