On Saturday 07 November 2009 11:28:12 pm Arjan van de Ven wrote: > Thomas Renninger wrote: > > > On Friday 06 November 2009 09:01:00 pm Luis R. Rodriguez wrote: > >> With cpu frequency scaling you may run into some system > >> performance issues when the FSB changes speed due to the > >> throughput constraints this brings on the system. > > > > Interesting. > > Could you be a bit more detailed how and what kind of perfomance issues > > are seen, please. > > I expect IO based issues like WLAN package throughput or even lost > > connections :) > > the bus doesn't get THAT slow..... I expected wireless problems because 5 people with @atheros.com are in CC. There is zero information about the problem itself and possibly affected devices/machines. > in addition, most FSB systems have the memory controller in the chipset, > next to the PCI logic... so that the FSB bus for DMA transactions only > carries the snoop traffic, not the whole data. So when should people look at this? Thomas -- To unsubscribe from this list: send the line "unsubscribe cpufreq" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html