Greg KH wrote: > On Tue, Nov 16, 2010 at 05:29:15PM +0100, Clemens Ladisch wrote: > > Greg KH wrote: > > > What benifits will MSI for usb controllers accomplish? > > > > On many chipsets, the onboard USB controllers all share the same > > interrupt, or share their interrupts with lots of other devices. > > Using MSI allows the handlers to run concurrently on different CPU > > cores, and might protect other devices against interrupt storms if > > a device or driver fails. > > But is that a failure that anyone has ever reported? No. Actual reports of problems with interrupt sharing were always about the latency of Nvidia's closed-source driver. Regards, Clemens -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
