On 2022-03-02 6:40 p.m., Guoqing Jiang wrote: > > > On 3/3/22 7:24 AM, Logan Gunthorpe wrote: >> So I'm back to square one trying to find some performance improvements >> on the write path. > > Did you try with group_thread_cnt? > > /sys/block/md0/md/group_thread_cnt Yes, I've tried group_thread_cnt and raised stripe_cache_size and a few other parameters. Still get limited write performance. Thanks, Logan