On 10/31/2013 10:27 PM, lilofile wrote: > now in MD raid5,stripe is hande in one thread, and I found the CPU occupation is very high, why stripe is not handled in multi-thread ? is any different to implement? and what consideration in original design? Shaohua Li has been working on a threaded RAID5 implementation for many months now. AFAIK it is not yet ready for inclusion nor widespread testing by others. See: https://lkml.org/lkml/2013/7/30/29 -- Stan -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html