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Plugin: freebsd.plugin Module: net.isr


Collect information about system softnet stat.

The plugin calls sysctl function to collect necessary data.

This collector is supported on all platforms.

This collector supports collecting metrics from multiple instances of this integration, including remote instances.

Default Behavior


This integration doesn't support auto-detection.


The default configuration for this integration does not impose any limits on data collection.

Performance Impact

The default configuration for this integration is not expected to impose a significant performance impact on the system.


Metrics grouped by scope.

The scope defines the instance that the metric belongs to. An instance is uniquely identified by a set of labels.

Per net.isr instance

These metrics show statistics about softnet stats.

This scope has no labels.


system.softnet_statdispatched, hybrid_dispatched, qdrops, queuedevents/s

Per core

This scope has no labels.


cpu.softnet_statdispatched, hybrid_dispatched, qdrops, queuedevents/s


The following alerts are available:

Alert nameOn metricDescription
1min_netdev_backlog_exceeded system.softnet_stataverage number of dropped packets in the last minute due to exceeded net.core.netdev_max_backlog
1min_netdev_budget_ran_outs system.softnet_stataverage number of times ksoftirq ran out of sysctl net.core.netdev_budget or net.core.netdev_budget_usecs with work remaining over the last minute (this can be a cause for dropped packets)
10min_netisr_backlog_exceeded system.softnet_stataverage number of drops in the last minute due to exceeded sysctl net.route.netisr_maxqlen (this can be a cause for dropped packets)



No action required.



The configuration file name for this integration is netdata.conf. Configuration for this specific integration is located in the [plugin:freebsd:net.isr] section within that file.

The file format is a modified INI syntax. The general structure is:

option1 = some value
option2 = some other value

option3 = some third value

You can edit the configuration file using the edit-config script from the Netdata config directory.

cd /etc/netdata 2>/dev/null || cd /opt/netdata/etc/netdata
sudo ./edit-config netdata.conf


Config options
netisrEnable or disable general vision about softnet stat metrics.yesno
netisr per coreEnable or disable softnet stat metric per core.yesno


There are no configuration examples.

Do you have any feedback for this page? If so, you can open a new issue on our netdata/learn repository.