| /Linux-v5.10/Documentation/vm/ |
| D | numa.rst | 6 What is NUMA?
12 From the hardware perspective, a NUMA system is a computer platform that
21 may not be populated on any given cell. The cells of the NUMA system are
23 point-to-point link are common types of NUMA system interconnects. Both of
24 these types of interconnects can be aggregated to create NUMA platforms with
27 For Linux, the NUMA platforms of interest are primarily what is known as Cache
28 Coherent NUMA or ccNUMA systems. With ccNUMA systems, all memory is visible
36 bandwidths than accesses to memory on other, remote cells. NUMA platforms
39 Platform vendors don't build NUMA systems just to make software developers'
46 This leads to the Linux software view of a NUMA system:
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| /Linux-v5.10/Documentation/devicetree/bindings/ |
| D | numa.txt | 2 NUMA binding description.
9 Systems employing a Non Uniform Memory Access (NUMA) architecture contain
11 that comprise what is commonly known as a NUMA node.
12 Processor accesses to memory within the local NUMA node is generally faster
13 than processor accesses to memory outside of the local NUMA node.
14 DT defines interfaces that allow the platform to convey NUMA node
21 For the purpose of identification, each NUMA node is associated with a unique
25 A device node is associated with a NUMA node by the presence of a
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| /Linux-v5.10/kernel/ |
| D | Kconfig.hz | 12 beneficial for servers and NUMA systems that do not need to have
23 100 Hz is a typical choice for servers, SMP and NUMA systems
32 on SMP and NUMA systems. If you are going to be using NTSC video
40 on SMP and NUMA systems and exactly dividing by both PAL and
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| /Linux-v5.10/drivers/acpi/numa/ |
| D | Kconfig | 3 bool "NUMA support"
4 depends on NUMA
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| /Linux-v5.10/Documentation/ABI/testing/ |
| D | ppc-memtrace | 14 you want removed from each NUMA node to this file - it must be
16 from each NUMA node in the kernel mappings and the following
27 from the specific NUMA node.
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| D | sysfs-bus-platform | 26 This file contains the NUMA node to which the platform device
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| D | sysfs-kernel-mm-ksm | 50 Description: Control merging pages across different NUMA nodes.
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| /Linux-v5.10/Documentation/x86/x86_64/ |
| D | fake-numa-for-cpusets.rst | 4 Fake NUMA For CPUSets
13 you can create fake NUMA nodes that represent contiguous chunks of memory and
23 For the purposes of this introduction, we'll assume a very primitive NUMA
65 case (i.e. running the same 'dd' command without assigning it to a fake NUMA
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| D | boot-options.rst | 167 NUMA chapter
171 Only set up a single NUMA node spanning all memory.
174 Don't parse the SRAT table for NUMA setup
177 Don't parse the HMAT table for NUMA setup, or soft-reserved memory
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| /Linux-v5.10/arch/ia64/ |
| D | Kconfig | 15 select ACPI_NUMA if NUMA
57 select NUMA if !FLATMEM
293 for architectures which are either NUMA (Non-Uniform Memory Access)
309 config NUMA config
310 bool "NUMA support"
314 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
346 def_bool NUMA && SPARSEMEM
350 depends on NUMA
354 depends on NUMA
357 def_bool NUMA
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| /Linux-v5.10/arch/mips/sgi-ip27/ |
| D | Kconfig | 31 NUMA. If you need to understand it, read the source code.
39 nodes in a NUMA cluster. This trades memory for speed.
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| /Linux-v5.10/Documentation/scheduler/ |
| D | sched-domains.rst | 63 node. Each group being a single physical CPU. Then with NUMA, the parent
65 cpumask of a node. Or, you could do multi-level NUMA or Opteron, for example,
66 might have just one domain covering its one NUMA level.
74 retain the traditional SMT->SMP->NUMA topology (or some subset of that). This
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| /Linux-v5.10/Documentation/features/sched/numa-balancing/ |
| D | arch-support.txt | 4 # description: arch supports NUMA balancing
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| /Linux-v5.10/kernel/irq/ |
| D | Kconfig | 124 ( Sparse irqs can also be beneficial on NUMA boxes, as they spread
125 out the interrupt descriptors in a more NUMA-friendly way. )
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| /Linux-v5.10/arch/x86/realmode/rm/ |
| D | trampoline_32.S | 33 wbinvd # Needed for NUMA-Q should be harmless for others
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| /Linux-v5.10/Documentation/admin-guide/mm/ |
| D | numaperf.rst | 4 NUMA Locality
65 NUMA Performance
100 NUMA Cache
133 the kernel will append these attributes to the NUMA node memory target.
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| D | numa_memory_policy.rst | 4 NUMA Memory Policy
7 What is NUMA Memory Policy?
11 allocate memory in a NUMA system or in an emulated NUMA system. Linux has
21 programming interface that a NUMA-aware application can take advantage of. When
108 are NOT inheritable across exec(). Thus, only NUMA-aware
165 A NUMA memory policy consists of a "mode", optional mode flags, and
175 NUMA memory policy supports the following 4 behavioral modes:
248 NUMA memory policy supports the following optional mode flags:
347 and NUMA nodes. "Usage" here means one of the following:
394 on different NUMA nodes. This extra overhead can be avoided by always
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| D | ksm.rst | 94 specifies if pages from different NUMA nodes can be merged.
96 in the memory area of same NUMA node. That brings lower
98 significant NUMA distances, are likely to benefit from the
145 swapping, compaction, NUMA balancing and page migration, in
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| D | hugetlbpage.rst | 159 On a NUMA platform, the kernel will attempt to distribute the huge page pool
160 over all the set of allowed nodes specified by the NUMA memory policy of the
172 some nodes in a NUMA system, it will attempt to make up the difference by
181 distribution of huge pages in a NUMA system, use::
244 NUMA nodes from which huge pages are allocated or freed are controlled by the
245 NUMA memory policy of the task that modifies the ``nr_hugepages_mempolicy``
310 NUMA node with memory in::
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| /Linux-v5.10/Documentation/filesystems/ |
| D | tmpfs.rst | 89 tmpfs has a mount option to set the NUMA memory allocation policy for
115 NUMA memory allocation policies have optional flags that can be used in
131 running kernel does not support NUMA; and will fail if its nodelist
134 NUMA capability (perhaps a safe recovery kernel), or with fewer nodes
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| /Linux-v5.10/arch/sh/mm/ |
| D | Kconfig | 107 config NUMA config
108 bool "Non Uniform Memory Access (NUMA) Support"
127 depends on !NUMA
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| /Linux-v5.10/tools/perf/Documentation/ |
| D | perf-bench.txt | 59 NUMA scheduling and MM benchmarks.
204 Suite for evaluating NUMA workloads.
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| /Linux-v5.10/mm/ |
| D | Kconfig | 25 This option is best suited for non-NUMA systems with
31 spaces and for features like NUMA and memory hotplug,
83 # Both the NUMA code and DISCONTIGMEM use arrays of pg_data_t's
89 depends on DISCONTIGMEM || NUMA
138 # Keep arch NUMA mapping infrastructure post-init.
159 select NUMA_KEEP_MEMINFO if NUMA
262 depends on (NUMA || ARCH_ENABLE_MEMORY_HOTREMOVE || COMPACTION || CMA) && MMU
266 two situations. The first is on NUMA systems to put pages nearer
519 default 19 if NUMA
526 If unsure, leave the default value "7" in UMA and "19" in NUMA.
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| /Linux-v5.10/Documentation/core-api/ |
| D | boot-time-mm.rst | 18 particular node in a NUMA system. There are API variants that panic
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| /Linux-v5.10/kernel/dma/ |
| D | Kconfig | 127 bool "Enable separate DMA Contiguous Memory Area for each NUMA Node"
128 default NUMA && ARM64
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