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2PCP-BUDDYINFO(1)            General Commands Manual           PCP-BUDDYINFO(1)
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NAME

7       pcp-buddyinfo  -  Report  statistics  for  buddy algorithm shown in cat
8       /proc/buddyinfo
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SYNOPSIS

12       pcp [pcp options] buddyinfo [-s samples] [-a archive]  [-Z  --timezone]
13       [-z --hostzone] [-V Version]
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DESCRIPTION

17       The  pcp-buddyinfo  command is used for viewing different stats related
18       to buddyinfo. It helps users analyze useful information related to  the
19       buddy  algorithm.  The  information  includes the total number of zones
20       that are currently active, order pages etc. By  default,  pcp-buddyinfo
21       reports live data for the local host.
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23       The statistics shown are as follows:
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26       HEADER          DESCRIPTION
27       _               _
28       Normal          zones available
29       Nodes           available nodes
30       Order0          available pages of order 0
31       Order1          available pages of order 1
32       Order2          available pages of order 2
33       Order3          available pages of order 3
34       Order4          available pages of order 4
35       Order5          available pages of order 5
36       Order6          available pages of order 6
37       Order7          available pages of order 7
38       Order8          available pages of order 8
39       Order9          available pages of order 9
40       Order10         available pages of order 10
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43       Each  column  represents the number of pages of a certain order (a cer‐
44       tain size) that are available at any given time. For example, for  zone
45       DMA  (direct  memory access), there are 90 of 2^(0*PAGE_SIZE) chunks of
46       memory. Similarly, there are 6 of  2^(1*PAGE_SIZE)  chunks,  and  2  of
47       2^(2*PAGE_SIZE) chunks of memory available.
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49       The  DMA  row  references  the first 16 MB on a system, the HighMem row
50       references all memory greater than 4 GB on a system, and the Normal row
51       references all memory in between.
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OPTIONS

55       -a, --archive
56              Fetch /proc/buddyinfo for a specified archive file
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59       -s, --samples
60              Get the buddyinfo for the specified number of samples count
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63       -z, --hostzone
64              Set the reporting timezone to the local time of metrics source
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67       -Z, --timezone
68              Set the reporting timezone
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71       -V, --version
72              Display the version number and exit.
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75       -?, --help
76              Display the usage message and exit.
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NOTES

80       pcp-buddyinfo  collects information from /proc/buddyinfo and aims to be
81       command-line and output compatible with it.
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PCP ENVIRONMENT

85       Environment variables with the prefix PCP_ are used to parameterize the
86       file  and  directory  names used by PCP. On each installation, the file
87       /etc/pcp.conf contains  the  local  values  for  these  variables.  The
88       $PCP_CONF  variable may be used to specify an alternative configuration
89       file, as described in pcp.conf(5).
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91       For environment variables affecting PCP tools, see pmGetOptions(3).
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SEE ALSO

95       PCPIntro(1), pcp(1), pmParseInterval(3), environ(7).
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99Performance Co-Pilot                  PCP                     PCP-BUDDYINFO(1)
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