Red Hat Bugzilla – Bug 195533
Enable CONFIG-NUMA in i386 PAE kernel
Last modified: 2007-11-30 17:11:35 EST
Description of problem:
Make CONFIG_NUMA part of the i386 build.
One config option needs to be set to take advantage of this:
Also for this to work on the IBM x460 two patches need to be applied (both being
pushed upstream right now).
The two patches are in BZ 184806.
The disadvantages (1% performance loss, no ISV requirements, no market for this)
are more numerous than the advantages (1-15% performance benefit for selective
IBM hardware, NUMA exists in 64-bit and customers need 64-bit to take advantage
of more memory), therefore setting bug as WONTFIX.