83 lines
2.6 KiB
Markdown
83 lines
2.6 KiB
Markdown
# Telegraf plugin: procstat
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#### Description
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The procstat plugin can be used to monitor system resource usage by an
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individual process using their /proc data.
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Processes can be specified either by pid file, by executable name, by command
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line pattern matching, or by username (in this order or priority. Procstat
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plugin will use `pgrep` when executable name is provided to obtain the pid.
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Procstat plugin will transmit IO, memory, cpu, file descriptor related
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measurements for every process specified. A prefix can be set to isolate
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individual process specific measurements.
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The plugin will tag processes according to how they are specified in the configuration. If a pid file is used, a "pidfile" tag will be generated.
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On the other hand, if an executable is used an "exe" tag will be generated. Possible tag names:
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* pidfile
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* exe
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* pattern
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* user
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Additionally the plugin will tag processes by their PID (pid_tag = true in the config) and their process name:
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* pid
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* process_name
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Example:
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```
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[[inputs.procstat]]
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exe = "influxd"
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prefix = "influxd"
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[[inputs.procstat]]
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pid_file = "/var/run/lxc/dnsmasq.pid"
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```
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The above configuration would result in output like:
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```
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> procstat,pidfile=/var/run/lxc/dnsmasq.pid,process_name=dnsmasq,pid=44979 cpu_user=0.14,cpu_system=0.07
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> procstat,exe=influxd,process_name=influxd,pid=34337 influxd_cpu_user=25.43,influxd_cpu_system=21.82
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```
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# Measurements
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Note: prefix can be set by the user, per process.
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Threads related measurement names:
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- procstat_[prefix_]num_threads value=5
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File descriptor related measurement names:
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- procstat_[prefix_]num_fds value=4
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Context switch related measurement names:
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- procstat_[prefix_]voluntary_context_switches value=250
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- procstat_[prefix_]involuntary_context_switches value=0
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I/O related measurement names:
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- procstat_[prefix_]read_count value=396
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- procstat_[prefix_]write_count value=1
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- procstat_[prefix_]read_bytes value=1019904
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- procstat_[prefix_]write_bytes value=1
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CPU related measurement names:
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- procstat_[prefix_]cpu_user value=0
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- procstat_[prefix_]cpu_system value=0.01
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- procstat_[prefix_]cpu_idle value=0
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- procstat_[prefix_]cpu_nice value=0
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- procstat_[prefix_]cpu_iowait value=0
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- procstat_[prefix_]cpu_irq value=0
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- procstat_[prefix_]cpu_soft_irq value=0
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- procstat_[prefix_]cpu_soft_steal value=0
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- procstat_[prefix_]cpu_soft_stolen value=0
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- procstat_[prefix_]cpu_soft_guest value=0
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- procstat_[prefix_]cpu_soft_guest_nice value=0
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Memory related measurement names:
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- procstat_[prefix_]memory_rss value=1777664
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- procstat_[prefix_]memory_vms value=24227840
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- procstat_[prefix_]memory_swap value=282624
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