Messages in this thread Patch in this message | | | Date | Fri, 1 Nov 2013 10:11:49 -0400 | From | Josh Boyer <> | Subject | [PATCH] x86: Allow NR_CPUS=1024 |
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The current range for SMP configs is 2 - 512, or a full 4096 in the case of MAXSMP. There are machines that have 1024 CPUs in them today and configuring a kernel for that means you are forced to set MAXSMP. This adds additional unnecessary overhead. While that overhead might be considered tiny for large machines, it isn't necessarily so if you are building a kernel that runs across a wide variety of machines. We increase the range to 1024 to help with this.
Signed-off-by: Josh Boyer <jwboyer@fedoraproject.org> --- arch/x86/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index f67e839..d726b2d 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -825,7 +825,7 @@ config MAXSMP config NR_CPUS int "Maximum number of CPUs" if SMP && !MAXSMP range 2 8 if SMP && X86_32 && !X86_BIGSMP - range 2 512 if SMP && !MAXSMP + range 2 1024 if SMP && !MAXSMP default "1" if !SMP default "4096" if MAXSMP default "32" if SMP && (X86_NUMAQ || X86_SUMMIT || X86_BIGSMP || X86_ES7000) -- 1.8.3.1
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