Lines Matching +full:cpu +full:- +full:read
29 .Nd description of the FreeBSD Symmetric Multi-Processor kernel
35 kernel implements symmetric multi-processor support.
43 the read-only sysctl variable
46 The number of online threads per CPU core is available in the read-only sysctl
49 The number of physical CPU cores detected by the system is available in the
50 read-only sysctl variable
54 allows specific CPUs on a multi-processor system to be disabled.
57 tunable, where X is the APIC ID of a CPU.
58 Setting this tunable to 1 will result in the corresponding CPU being
69 scheduler implements CPU topology detection and adjusts the scheduling
70 algorithms to make better use of modern multi-core CPUs.
73 reflects the detected CPU hardware in a parsable XML format.
75 containing data about individual CPU groups.
76 A CPU group contains CPUs that are detected to be "close" together, usually
77 by being cores in a single multi-core processor.
79 nesting level of the CPU group and "cache-level", corresponding to the
80 level of CPU caches shared by the CPUs in the group.
81 The <group> tag contains the <cpu> and <flags> tags.
82 The <cpu> tag describes CPUs in the group.
85 each bit position set to 1 signifies a CPU belonging to the group.
86 The contents (CDATA) of the <cpu> tag is the comma-delimited list
87 of CPU indexes (derived from the "mask" attribute).
93 two quad-core processors is:
94 .Bd -literal
96 <group level="1" cache-level="0">
97 <cpu count="8" mask="0xff">0, 1, 2, 3, 4, 5, 6, 7</cpu>
100 <group level="2" cache-level="0">
101 <cpu count="4" mask="0xf">0, 1, 2, 3</cpu>
104 <group level="2" cache-level="0">
105 <cpu count="4" mask="0xf0">4, 5, 6, 7</cpu>
116 Support for multi-processor systems is present for all Tier-1 and Tier-2
122 It is permissible to use the SMP kernel configuration on non-SMP hardware.
134 command may be used to view the status of multi-processor support.
155 merged into 3.0-current.
156 By this date 3.0-current had already been
161 a move towards fine-grained kernel locking rather than reliance on
164 reference source code from the fine-grained SMP implementation found
177 sysctl variables are provided as a best-effort guess.