> Hello Jack Wang and Lindar Liu, > > > I am running the pm8001 driver (on applicable hardware including a > several core SMP server). > > When I run on an older kernel -- e.g. 2.6.34.7 -- I get about 73Kiops > via an fio test. > > When I run a current kernel -- e.g. 2.6.39.2 -- on the same system and > same storage I get about 15Kiops running the same fio test. > > Perhaps something has changes in the kernel that is not being accounted for? > Are you two still maintaining this driver? > > > Regards, > David [Jack Wang] Could you give your detailed topology, I will later try to investigate the performance issue, but as I remember an Intel developer reports in mailist some changes in block layer lead to JBOD performance degradation. -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
