1PCP-PIDSTAT(1) General Commands Manual PCP-PIDSTAT(1)
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6 pcp-pidstat - Report statistics for Linux tasks.
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9 pcp [pcp options] pidstat [-I] [-l] [-R] [-r] [-k] [-U [username]] [-V]
10 [-G processname] [-p pid1,pid2..] [-t interval] [-s count] [-a ar‐
11 chive] [-B state] [-f format] [-Z timezone] [-z] [-?]
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14 The pcp-pidstat command is used for monitoring individual tasks running
15 on the system. Using various options it helps user to see useful
16 information related to the processes. This information includes CPU
17 percentage, memory and stack usage, scheduling and priority. By
18 default pcp-pidstat reports live data for the local host.
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21 When invoked via the pcp(1) command, the -h/--host, -a/--archive,
22 -O/--origin, -s/--samples, -t/--interval, -Z/--timezone and several
23 other and several other pcp options become indirectly available; refer
24 to PCPIntro(1) for a complete description of these options.
25 The additional command line options available for pcp-pidstat are:
27 -I In an SMP environment, indicates that tasks CPU usage should be
29 divided by the total number of processors.
30 -l Display the process command name and all its arguments.
32 -R Report realtime priority and scheduling policy information. The
34 following values may be displayed:
35 UID
37 The real user identification number of the task being moni‐
38 tored.
39 USER
41 The name of the real user owning the task being monitored.
42 PID
44 The identification number of the task being monitored.
45 prio
47 The realtime priority of the task being monitored.
48 policy
50 The scheduling policy of the task being monitored.
51 Command
53 The command name of the task.
54 -r Report page faults and memory utilization. The following values
56 may be displayed:
57 UID
59 The real user identification number of the task being moni‐
60 tored.
61 USER
63 The name of the real user owning the task being monitored.
64 PID
66 The identification number of the task being monitored.
67 minflt/s
69 Total number of minor faults the task has made per second,
70 those which have not required loading a memory page from disk.
71 majflt/s
73 Total number of major faults the task has made per second,
74 those which have required loading a memory page from disk.
75 VSZ
77 Virtual Size: The virtual memory usage of entire task in
78 kilobytes.
79 RSS
81 Resident Set Size: The non-swapped physical memory used by
82 the task in kilobytes.
83 %MEM
85 The tasks currently used share of available physical mem‐
86 ory.
87 Command
89 The command name of the task.
90 -k Report stack utilization. The following values may be displayed:
92 UID
94 The real user identification number of the task being moni‐
95 tored.
96 USER
98 The name of the real user owning the task being monitored.
99 PID
101 The identification number of the task being monitored.
102 StkSize
104 The amount of memory in kilobytes reserved for the task as
105 stack, but not necessarily used.
106 StkRef
108 The amount of memory in kilobytes used as stack, referenced
109 by the task.
110 Command
112 The command name of the task.
113 -U [username], --user-name[=username]
115 Display the real user name of the tasks being monitored instead of
116 the UID. If username is specified, then only tasks belonging to
117 the specified user are displayed.
118 -V Print version number then exit.
120 -G processname, --process-name=processname
122 Display only processes whose command name includes the string pro‐
123 cessname. This string can be a regular expression.
124 -p pid1,pid2.., --pid-list=pid1,pid2..
126 Display only processes with the listed PIDs.
127 -t interval, --interval=interval
129 Set the interval between two samples. The default is one second.
130 -s count, --samples=count
132 Set the number of samples to be displayed. Since the first sample
133 is used for the rate conversion of some of the metrics, the total
134 number of samples reported are one less than count. The default
135 is continous.
136 -a archive, --archive=archive
138 Causes pcp-pidstat to use the specified archive than connecting to
139 PMCD. The argument to -a is a comma-separated list of names, each
140 of which may be the base name of an archive or the name of a
141 directory containing one or more archives.
142 -B Report process states. The argument to -B is one of the follow‐
144 ing:
145 detail
147 Show total time processes have spent in each of the 5 dif‐
148 ferent states
149 all
151 Show total time processes spent in their current state
152 [R,S,T,D,Z]
154 A comma separated list of process states. For example, -B
155 R,S will report processes currently in either R or S states and
156 not report processes currently in any other states.
157 -f Use the format string for formatting the timestamp. The format
159 will be used with the python(1) datetime.strftime method which is
160 similar to that described in strftime(3). An empty format string
161 (i.e, "") will remove the timestamps from the output. The default
162 with stdout is %H:%M:%S.
163 -Z timezone, --timezone=timezone
165 By default, pcp-pidstat reports the time of day according to the
166 local timezone on the system where pcp-pidstat is run. The -Z
167 option changes the timezone to timezone in the format of the envi‐
168 ronment variable TZ as described in environ(7).
169 -z , --hostzone
171 Change the reporting timezone to the local timezone at the host
172 that is the source of the performance metrics. When replaying a
173 PCP archive that was captured in a foreign timezone, the -z option
174 would almost always be used (the default reporting timezone is the
175 local timezone, which may not be the same as the timezone of the
176 PCP archive).
177 -? , --help
179 Display usage message and exit.
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182 pcp-pidstat is inspired by the pidstat(1) command and aims to be com‐
183 mand line and output compatible with it.
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186 Environment variables with the prefix PCP_ are used to parameterize the
187 file and directory names used by PCP. On each installation, the file
188 /etc/pcp.conf contains the local values for these variables. The
189 $PCP_CONF variable may be used to specify an alternative configuration
190 file, as described in pcp.conf(5).
191 For environment variables affecting PCP tools, see pmGetOptions(3).
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195 PCPIntro(1), pcp(1), pidstat(1), python(1), pmParseInterval(3), strf‐
196 time(3) and environ(7).
197Performance Co-Pilot PCP PCP-PIDSTAT(1)