sure B<cpufreqd> (L<http://cpufreqd.sourceforge.net/>) or a similar tool is
installed and an "cpu governor" (that's a kernel module) is loaded.
+If the system has the I<cpufreq-stats> kernel module loaded, this plugin reports
+the rate of p-state (cpu frequency) transitions and the percentage of time spent
+in each p-state.
+
=head2 Plugin C<cpusleep>
This plugin doesn't have any options. It reads CLOCK_BOOTTIME and
B<ProcessMatch> blocks these options set the default value for subsequent
matches.
+=head2 Plugin C<procevent>
+
+The I<procevent> plugin monitors when processes start (EXEC) and stop (EXIT).
+
+B<Synopsis:>
+
+ <Plugin procevent>
+ BufferLength 10
+ Process "name"
+ ProcessRegex "regex"
+ </Plugin>
+
+B<Options:>
+
+=over 4
+
+=item B<BufferLength> I<length>
+
+Maximum number of process events that can be stored in plugin's ring buffer.
+By default, this is set to 10. Once an event has been read, its location
+becomes available for storing a new event.
+
+=item B<Process> I<name>
+
+Enumerate a process name to monitor. All processes that match this exact
+name will be monitored for EXECs and EXITs.
+
+=item B<ProcessRegex> I<regex>
+
+Enumerate a process pattern to monitor. All processes that match this
+regular expression will be monitored for EXECs and EXITs.
+
+=back
+
=head2 Plugin C<protocols>
Collects a lot of information about various network protocols, such as I<IP>,
Only I<Connection> is required.
+Consider the following example config:
+
+ <Plugin "virt">
+ Connection "qemu:///system"
+ HostnameFormat "hostname"
+ InterfaceFormat "address"
+ PluginInstanceFormat "name"
+ </Plugin>
+
+It will generate the following values:
+
+ node42.example.com/virt-instance-0006f26c/disk_octets-vda
+ node42.example.com/virt-instance-0006f26c/disk_ops-vda
+ node42.example.com/virt-instance-0006f26c/if_dropped-ca:fe:ca:fe:ca:fe
+ node42.example.com/virt-instance-0006f26c/if_errors-ca:fe:ca:fe:ca:fe
+ node42.example.com/virt-instance-0006f26c/if_octets-ca:fe:ca:fe:ca:fe
+ node42.example.com/virt-instance-0006f26c/if_packets-ca:fe:ca:fe:ca:fe
+ node42.example.com/virt-instance-0006f26c/memory-actual_balloon
+ node42.example.com/virt-instance-0006f26c/memory-available
+ node42.example.com/virt-instance-0006f26c/memory-last_update
+ node42.example.com/virt-instance-0006f26c/memory-major_fault
+ node42.example.com/virt-instance-0006f26c/memory-minor_fault
+ node42.example.com/virt-instance-0006f26c/memory-rss
+ node42.example.com/virt-instance-0006f26c/memory-swap_in
+ node42.example.com/virt-instance-0006f26c/memory-swap_out
+ node42.example.com/virt-instance-0006f26c/memory-total
+ node42.example.com/virt-instance-0006f26c/memory-unused
+ node42.example.com/virt-instance-0006f26c/memory-usable
+ node42.example.com/virt-instance-0006f26c/virt_cpu_total
+ node42.example.com/virt-instance-0006f26c/virt_vcpu-0
+
+You can get information on the metric's units from the online libvirt documentation.
+For instance, I<virt_cpu_total> is in nanoseconds.
+
=over 4
=item B<Connection> I<uri>
same guest across migrations.
B<hostname> means to use the global B<Hostname> setting, which is probably not
-useful on its own because all guests will appear to have the same name.
+useful on its own because all guests will appear to have the same name. This is
+useful in conjunction with B<PluginInstanceFormat> though.
You can also specify combinations of these fields. For example B<name uuid>
means to concatenate the guest name and UUID (with a literal colon character
<Plugin write_stackdriver>
CredentialFile "/path/to/service_account.json"
<Resource "global">
- project_id "monitored_project"
+ Label "project_id" "monitored_project"
</Resource>
</Plugin>
=item
-The patch C<${HOME}/.config/gcloud/application_default_credentials.json> is
+The path C<${HOME}/.config/gcloud/application_default_credentials.json> is
checked. This where credentials used by the I<gcloud> command line utility are
stored. You can use C<gcloud auth application-default login> to create these
credentials.
=item B<Resource> I<ResourceType>
-Configures the I<Monitored Resource> to use when storing metrics. This option
-takes a I<ResourceType> and arbitrary string options which are used as labels.
+Configures the I<Monitored Resource> to use when storing metrics.
+More information on I<Monitored Resources> and I<Monitored Resource Types> are
+available at L<https://cloud.google.com/monitoring/api/resources>.
-On GCE, defaults to the equivalent of this config:
+This block takes one string argument, the I<ResourceType>. Inside the block are
+one or more B<Label> options which configure the resource labels.
+
+This block is optional. The default value depends on the runtime environment:
+on GCE, the C<gce_instance> resource type is used, otherwise the C<global>
+resource type ist used:
+
+=over 4
+
+=item
+
+B<On GCE>, defaults to the equivalent of this config:
<Resource "gce_instance">
-
project_id "<project_id>"
- instance_id "<instance_id>"
- zone "<zone>"
+
Label "project_id" "<project_id>"
+ Label "instance_id" "<instance_id>"
+ Label "zone" "<zone>"
</Resource>
The values for I<project_id>, I<instance_id> and I<zone> are read from the GCE
metadata service.
-When not running on GCE, defaults to the equivalent of this config:
+=item
+
+B<Elsewhere>, i.e. not on GCE, defaults to the equivalent of this config:
<Resource "global">
+
Label "project_id" "<Project>"
</Resource>
-Where I<Project> refers to the value of the B<Project> option.
+Where I<Project> refers to the value of the B<Project> option or the project ID
+inferred from the B<CredentialFile>.
-See L<https://cloud.google.com/monitoring/api/resources> for more information
-on I<Monitored Resource Types>.
+=back
=item B<Url> I<Url>
projects / collectd.git / blobdiff