On Thursday 12 February 2009 3:07:30 am James Chang wrote: > Dear all, > > Does any ever try FreeBSD on box that has more than 16 CPU? > > I got an HP ProLiant DL 785 G5 with 32 core (Quad-Core AMD Opteron(tm) > Processor 8356 (2300.10-MHz K8-class CPU) and 256G memory. > When I boot this machine, it could detect 32 core, but only use 16 core!? > > What should do to get FreeBSD 7.1 work with 32 core? > Or, FreeBSD 7.1 only 16 Core Max ?
Out of the box FreeBSD only supports 16 CPUs. You can increase that to 32 by changing MAX_CPU in sys/(amd64|i386)/include/param.h and rebuilding. On amd64 you can actually bump it up to 64 if desired. I don't make any promises as to how well the system will perform with that many CPUs enabled though. -- John Baldwin _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-smp To unsubscribe, send any mail to "[email protected]"
