#config SGI_SN0_XXL # bool "IP27 XXL" # depends on SGI_IP27 # This options adds support for userspace processes upto 16TB size. # Normally the limit is just .5TB. config SGI_SN_N_MODE bool "IP27 N-Mode" depends on SGI_IP27 help The nodes of Origin 200, Origin 2000 and Onyx 2 systems can be configured in either N-Modes which allows for more nodes or M-Mode which allows for more memory. Your system is most probably running in M-Mode, so you should say N here. config MAPPED_KERNEL bool "Mapped kernel support" depends on SGI_IP27 help Change the way a Linux kernel is loaded into memory on a MIPS64 machine. This is required in order to support text replication and NUMA. If you need to understand it, read the source code. config REPLICATE_KTEXT bool "Kernel text replication support" depends on SGI_IP27 help Say Y here to enable replicating the kernel text across multiple nodes in a NUMA cluster. This trades memory for speed. config REPLICATE_EXHANDLERS bool "Exception handler replication support" depends on SGI_IP27 help Say Y here to enable replicating the kernel exception handlers across multiple nodes in a NUMA cluster. This trades memory for speed.