Nikolai Joukov wrote: > We have designed a new stackable file system that we called RAIF: > Redundant Array of Independent Filesystems.
Great! > We have performed some benchmarking on a 3GHz PC with 2GB of RAM and U320 > SCSI disks. Compared to the Linux RAID driver, RAIF has overheads of > about 20-25% under the Postmark v1.5 benchmark in case of striping and > replication. In case of RAID4 and RAID5-like configurations, RAIF > performed about two times *better* than software RAID and even better than > an Adaptec 2120S RAID5 controller. I am not surprised. RAID 4/5/6 performance is highly sensitive to the underlying hw, and thus needs a fair amount of fine tuning. > This is because RAIF is located above > file system caches and can cache parity as normal data when needed. We > have more performance details in a technical report, if anyone is > interested. Definitely interested. Can you give a link? Thanks! -- Al _______________________________________________ unionfs mailing list [email protected] http://www.fsl.cs.sunysb.edu/mailman/listinfo/unionfs
