On Mon, Feb 26, 2024 at 1:16 PM John Groves <John@xxxxxxxxxx> wrote: > > On 24/02/26 07:53AM, Luis Chamberlain wrote: > > On Mon, Feb 26, 2024 at 07:27:18AM -0600, John Groves wrote: > > > Run status group 0 (all jobs): > > > WRITE: bw=29.6GiB/s (31.8GB/s), 29.6GiB/s-29.6GiB/s (31.8GB/s-31.8GB/s), io=44.7GiB (48.0GB), run=1511-1511msec > > > > > This is run on an xfs file system on a SATA ssd. > > > > To compare more closer apples to apples, wouldn't it make more sense > > to try this with XFS on pmem (with fio -direct=1)? > > > > Luis > > Makes sense. Here is the same command line I used with xfs before, but > now it's on /dev/pmem0 (the same 128G, but converted from devdax to pmem > because xfs requires that. > > fio -name=ten-256m-per-thread --nrfiles=10 -bs=2M --group_reporting=1 --alloc-size=1048576 --filesize=256MiB --readwrite=write --fallocate=none --numjobs=48 --create_on_open=0 --ioengine=io_uring --direct=1 --directory=/mnt/xfs Could you try with mkfs.xfs -d agcount=1024 Luis
