Christoph Hellwig <hch@xxxxxxxxxxxxx> writes: > All three filesystems use the generic mpages code for reads, so they > all get the same (bad) I/O patterns. Looks like we need to fix this up > ASAP. Actually, in discussing this with Vivek, he mentioned that read ahead might be involved. Sure enough, after bumping read_ahead_kb, 1MB I/Os are sent down to the storage (for xfs anyway). Cheers, Jeff -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
