pcp-numastat - report on NUMA memory allocation
pcp [
pcp options]
numastat [
-Vw?]
pcp-numastat displays NUMA allocation statistics from the kernel memory
allocator. Each process has NUMA policies that specify on which node pages are
allocated. The performance counters in the kernel track on which nodes memory
is allocated and these values are sampled and reported by
pcp-numastat.
Counters are maintained individually for each NUMA node. Details of the
semantics of each reported metric can be retrieved using the following
command:
# pminfo ‐dt mem.numa.alloc
When invoked via the
pcp(1) command, the
-h/
--host,
-a/
--archive,
-O/
--origin,
-Z/
--timezone and several other
pcp options become
indirectly available; refer to
PCPIntro(1) for a complete description
of these options.
The additional command line options available for
pcp-numastat are:
-
-V, --version
- Display the current version of the command.
-
-w width, --width=width
- Limit display to width.
-
-?, --help
- Display usage message and exit.
pcp-numastat is inspired by the
numastat(1) command and produces
exactly the same output.
Environment variables with the prefix
PCP_ are used to parameterize the
file and directory names used by PCP. On each installation, the file
/etc/pcp.conf contains the local values for these variables. The
$PCP_CONF variable may be used to specify an alternative configuration
file, as described in
pcp.conf(5).
For environment variables affecting PCP tools, see
pmGetOptions(3).
PCPIntro(1),
pcp(1) and
numastat(1).