Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
x86, numa: Reduce minimum fake node size to 32M
This patch changes the minimum fake node size from 64MB to 32MB so it is
possible to test NUMA code at a greater scale on smaller machines
(64 nodes on a 2G machine, 1024 nodes on 32G machine with
CONFIG_NODES_SHIFT=10).
Signed-off-by: David Rientjes <rientjes@google.com>
LKML-Reference: <alpine.DEB.2.00.1012221700590.3701@chino.kir.corp.google.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
authored by David Rientjes and committed by H. Peter Anvin 34dc9e74 f658bcfb
+1
-1
arch/x86/include/asm/numa_64.h
+1
-1
arch/x86/include/asm/numa_64.h
···
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extern void __cpuinit numa_remove_cpu(int cpu);
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#ifdef CONFIG_NUMA_EMU
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-
#define FAKE_NODE_MIN_SIZE ((u64)64 << 20)
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+
#define FAKE_NODE_MIN_SIZE ((u64)32 << 20)
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#define FAKE_NODE_MIN_HASH_MASK (~(FAKE_NODE_MIN_SIZE - 1UL))
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#endif /* CONFIG_NUMA_EMU */
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#else