On Thu, 2011-06-23 at 22:54 -0500, Jon Mason wrote: > There is a sizable performance boost for having the largest possible > maximum payload size on each PCI-E device. However, the maximum payload > size must be uniform on a given PCI-E fabric, and each device, bridge, > and root port can have a different max size. To find and configure the > optimal MPS settings, one must walk the fabric and determine the largest > MPS available on all the devices on the given fabric. Sorry, I haven't had a chance to try it on my setup here, will do asap. Cheers, Ben. -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html