To whom it may be interesting, this paper says that ~80K IOPS (4K random writes) is real: https://archive.fosdem.org/2018/schedule/event/optimizing_sds/attachments/slides/2300/export/events/attachments/optimizing_sds/slides/2300/GlusterOnNVMe_FOSDEM2018.pdf On the same-class server hardware, following their tuning recommendations, etc. I just run 8 times slower. So it seems that RH insiders are the only people knows how to setup real GlusterFS installation properly :(. Dmitry ________ Community Meeting Calendar: Schedule - Every 2nd and 4th Tuesday at 14:30 IST / 09:00 UTC Bridge: https://meet.google.com/cpu-eiue-hvk Gluster-users mailing list Gluster-users@xxxxxxxxxxx https://lists.gluster.org/mailman/listinfo/gluster-users