On Monday 08 December 2014 17:57:03 Zi Shen Lim wrote: > Hi Arnd, > > On Mon, Nov 24, 2014 at 3:53 AM, Arnd Bergmann <arnd@xxxxxxxx> wrote: > > > > On Saturday 22 November 2014 02:53:27 Ganapatrao Kulkarni wrote: > > > Raising the maximum limit to 128. This is needed for Cavium's > > > Thunder system that will have 96 cores on Multi-node system. > > > > > > Signed-off-by: Ganapatrao Kulkarni <ganapatrao.kulkarni@xxxxxxxxxxxxxxxxxx> > > > > > > > Could we please raise the compile-time limit to the highest number that > > you are able to boot successfully on some existing machine? > > > > There isn't much point in doubling this every few months. > > Agreed. If we look back at [1], Mark Rutland has actually compiled and > boot-tested NR_CPUS=4096 on Juno. > > [1] https://lkml.org/lkml/2014/9/8/537 Ok, 4096 sounds like a good NR_CPUS limit then, it should last for a while. For the defconfig, we probably want a much smaller value, either one that covers all known machines (96 at this time), or something that covers 95% of all users (maybe 32?) and does not have an serious impact on memory consumption or performance on small machines. Arnd -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
