On 2/4/2013 6:01 PM, Roy Sigurd Karlsbakk wrote: >> Third, use XFS, and format with alignment to the md device: >> ~$ mkfs.xfs -d su=512k,sw=4 > > Why? ext4 should be just as good for that, XFS generally yields better performance with concurrency, and is simply a better filesystem across the board WRT performance, features, and tools. And XFS has been designed and optimized since 1994 specifically for storing and streaming large files, making it a perfect fit for the OP's 4GB files. Why use "just as good" when one can use the best? > and better for metadata XFS metadata performance has exceeded that of EXT4 since mainline kernel 2.6.39 (May 2011) for workloads with medium to large concurrency (2-4 threads or more). It's single thread metadata performance is now not far behind EXT4. Thus journal metadata performance is no longer a reason to avoid XFS. Regardless, metadata performance is irrelevant to the OP's stated workload. -- 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
