rv-mon-sched¶

Scheduler monitors collection¶

Manual section:: 1

SYNOPSIS¶

rv mon sched [OPTIONS]

rv mon <NESTED_MONITOR> [OPTIONS]

rv mon sched:<NESTED_MONITOR> [OPTIONS]

DESCRIPTION¶

The scheduler monitor collection is a container for several monitors to model the behaviour of the scheduler. Each monitor describes a specification that the scheduler should follow.

As a monitor container, it will enable all nested monitors and set them according to OPTIONS. Nevertheless nested monitors can also be activated independently both by name and by specifying sched: , e.g. to enable only monitor tss you can do any of:

# rv mon sched:tss

# rv mon tss

See kernel documentation for further information about this monitor: <https://docs.kernel.org/trace/rv/monitor_sched.html>

OPTIONS¶

-h, --help

Print the monitor’s options and the available reactors list.

-r, --reactor reactor

Enables the reactor. See -h for a list of available reactors.

-s, --self

When tracing (-t), also print the events that happened during the rv command itself. If the rv command itself generates too many events, the tool might get busy processing its own events only.

-t, --trace

Trace monitor’s events and error.

-v, --verbose

Print debug messages.

NESTED MONITOR¶

The available nested monitors are:

scpd: schedule called with preemption disabled
snep: schedule does not enable preempt
sncid: schedule not called with interrupt disabled
snroc: set non runnable on its own context
sco: scheduling context operations
tss: task switch while scheduling

AUTHOR¶

Written by Gabriele Monaco <gmonaco@redhat.com>

REPORTING BUGS¶

Report bugs to <linux-kernel@vger.kernel.org> and <linux-trace-devel@vger.kernel.org>

LICENSE¶

rv is Free Software licensed under the GNU GPLv2