On Wednesday March 22, pahilwan.yogesh@xxxxxxxxxxxxxxx wrote: > Hello, > > I want to know where I can get various MD RAID5/RAID6 bitmap patches for > linux kernel 2.6.15. 2.6.15 already includes support for bitmaps for MD raid5 and raid6 (And raid1). No patches needed. > I want to know what kind of performance optimization possible on bitmap > patches. I also want to know are > there any patches available which provides performance optimizations using > bitmaps. Bitmaps optimise rebuild time after a crash, or after removing and re-adding a device. They do not improve normal read/write performance, and may well cause a small degradation in performance. 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