Hello, On Mon, Jun 13, 2011 at 11:34 PM, Jon Mason <jon.mason@xxxxxxxx> 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. > Wow, Linux not did this already? I'll see if I can find a system where all systems have 256+ bytes payload capability across the system to test this one. Regards, -- Leon -- 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