On 1/31/24 07:42, kernel test robot wrote:
kernel test robot noticed a -72.9% regression of fio.write_iops on:
commit: 574e7779cf583171acb5bf6365047bb0941b387c ("block/mq-deadline: use separate insertion lists")
https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master
testcase: fio-basic
test machine: 64 threads 2 sockets Intel(R) Xeon(R) Gold 6346 CPU @ 3.10GHz (Ice Lake) with 256G memory
parameters:
runtime: 300s
disk: 1HDD
fs: xfs
nr_task: 100%
test_size: 128G
rw: write
bs: 4k
ioengine: io_uring
direct: direct
cpufreq_governor: performance
The actual test is available in this file:
https://download.01.org/0day-ci/archive/20240131/202401312320.a335db14-oliver.sang@xxxxxxxxx/repro-script
I haven't found anything in that file for disabling merging. Merging
requests decreases IOPS. Does this perhaps mean that this test is
broken?
Thanks,
Bart.
