1PCP-NUMASTAT(1) General Commands Manual PCP-NUMASTAT(1)
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6 pcp-numastat - report on NUMA memory allocation
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9 pcp [pcp options] numastat [-Vw?]
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12 pcp-numastat displays NUMA allocation statistics from the kernel memory
13 allocator. Each process has NUMA policies that specify on which node
14 pages are allocated. The performance counters in the kernel track on
15 which nodes memory is allocated and these values are sampled and
16 reported by pcp-numastat.
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18 Counters are maintained individually for each NUMA node. Details of
19 the semantics of each reported metric can be retrieved using the fol‐
20 lowing command:
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22 # pminfo ‐dt mem.numa.alloc
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25 When invoked via the pcp(1) command, the -h/--host, -a/--archive,
26 -O/--origin, -Z/--timezone and several other pcp options become indi‐
27 rectly available; refer to PCPIntro(1) for a complete description of
28 these options.
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30 The additional command line options available for pcp-numastat are:
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32 -V, --version
33 Display the current version of the command.
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35 -w width, --width=width
36 Limit display to width.
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38 -?, --help
39 Display usage message and exit.
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42 pcp-numastat is inspired by the numastat(1) command and produces
43 exactly the same output.
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46 Environment variables with the prefix PCP_ are used to parameterize the
47 file and directory names used by PCP. On each installation, the file
48 /etc/pcp.conf contains the local values for these variables. The
49 $PCP_CONF variable may be used to specify an alternative configuration
50 file, as described in pcp.conf(5).
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52 For environment variables affecting PCP tools, see pmGetOptions(3).
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55 PCPIntro(1), pcp(1) and numastat(1).
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59Performance Co-Pilot PCP PCP-NUMASTAT(1)