| Message ID | 20201029203752.1114948-1-vanshikonda@os.amperecomputing.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [v2] arm64: NUMA: Kconfig: Increase NODES_SHIFT to 4 | expand |
On Thu, Oct 29, 2020 at 01:37:52PM -0700, Vanshidhar Konda wrote: > The current arm64 default config limits max NUMA nodes available on > system to 4 (NODES_SHIFT = 2). Today's arm64 systems can reach or > exceed 16 NUMA nodes. To accomodate current hardware and to fit > NODES_SHIFT within page flags on arm64, increase NODES_SHIFT to 4. > > Discussion on v1 of the patch: > https://lkml.org/lkml/2020/10/20/767 Better use a stable link to refer to the past discussion: Link: https://lore.kernel.org/r/20201020173409.1266576-1-vanshikonda@os.amperecomputing.com > Signed-off-by: Vanshidhar Konda <vanshikonda@os.amperecomputing.com> > --- > arch/arm64/Kconfig | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig > index f858c352f72a..cffcc677011f 100644 > --- a/arch/arm64/Kconfig > +++ b/arch/arm64/Kconfig > @@ -982,7 +982,7 @@ config NUMA > config NODES_SHIFT > int "Maximum NUMA Nodes (as a power of 2)" > range 1 10 > - default "2" > + default "4" > depends on NEED_MULTIPLE_NODES > help > Specify the maximum number of NUMA Nodes available on the target Acked-by: Catalin Marinas <catalin.marinas@arm.com>
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index f858c352f72a..cffcc677011f 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -982,7 +982,7 @@ config NUMA config NODES_SHIFT int "Maximum NUMA Nodes (as a power of 2)" range 1 10 - default "2" + default "4" depends on NEED_MULTIPLE_NODES help Specify the maximum number of NUMA Nodes available on the target
The current arm64 default config limits max NUMA nodes available on system to 4 (NODES_SHIFT = 2). Today's arm64 systems can reach or exceed 16 NUMA nodes. To accomodate current hardware and to fit NODES_SHIFT within page flags on arm64, increase NODES_SHIFT to 4. Discussion on v1 of the patch: https://lkml.org/lkml/2020/10/20/767 Signed-off-by: Vanshidhar Konda <vanshikonda@os.amperecomputing.com> --- arch/arm64/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)