On Mon, Oct 3, 2011 at 7:55 AM, satish kondapalli <[email protected]> wrote: > I am new to FreeBSD, I just want know whether FreeBSD supports NUMA. > If FreeBSD supports NUMA what are the kernel API to allocate memory? > is there any example driver or any driver which is using the NUMA API? > > please provide some inputs...
The kernel is NUMA-aware (at least for x86), and memory is allocated round-robin amongst the memory domains. There are not yet any KPIs for allocating memory in a specific NUMA domain, nor for binding specific threads / processes to get their memory local to a bound cpu instead of round robin. There have been several discussions but no one has taken the lead and proposed some KPIs yet. At $WORK the round-robin is sufficient to get consistent performance numbers and we have not yet started any experimentation with binding specific threads to either CPU or memory. Cheers, matthew _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[email protected]"
