On Friday December 9, kylewong@xxxxxxxxxx wrote: > Hi, > > I found that there's a new sysfs "stripe_cache_size" variable. I want to > know how does it affect RAID5 read / write performance (if any) ? > Please cc to me if possible, thanks. Would you like to try it out and see? Any value from about 10 to a few thousand should be perfectly safe, though very large values may cause the system to run short of memory. The memory used is approximately stripe_cache_size * 4K * number-of-drives NeilBrown - 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