On Fri 24-05-24 19:08:51, Dan Shelton wrote: > On Thu, 23 May 2024 at 18:55, Jan Kara <jack@xxxxxxx> wrote: > > > > Hello! > > > > I've been debugging NFS performance regression with recent kernels. It > > seems to be at least partially related to the following behavior of NFS > > (which is there for a long time AFAICT). Suppose the following workload: > > > > fio --direct=0 --ioengine=sync --thread --directory=/test --invalidate=1 \ > > --group_reporting=1 --runtime=100 --fallocate=posix --ramp_time=10 \ > > --name=RandomWrites-async --new_group --rw=randwrite --size=32000m \ > > --numjobs=4 --bs=4k --fsync_on_close=1 --end_fsync=1 \ > > --filename_format='FioWorkloads.$jobnum' > > Where do you get the fio command from? Well, this is somewhat hand-edited fio command that our QA runs as part of performance testing of our kernels. Honza -- Jan Kara <jack@xxxxxxxx> SUSE Labs, CR
