DETERMINE_MAXIMUM_MPPS(8)   System Manager's Manual  DETERMINE_MAXIMUM_MPPS(8)

# SPDX-License-Identifier: GPL-2.0-or-later

NAME
       determine_maximum_mpps - Determine the maximum mpps the machine can
       handle

SYNOPSIS
       determine_maximum_mpps [-a cpulist] [-m maxlat] [-n cycles] [-f | -r]
       [-p priority] [-h]

DESCRIPTION
       determine_maximum_mpps will find the maximum mpps parameter which can
       sustain

              1. 10 consecutive 30 second runs.
              2. 1 run of 10 minutes.

       Without violating the latency specified with $MAXLAT (default 20000)

TERMINOLOGY
       mpps : million-packets-per-second

OPTIONS
       -a cpulist
              List of processors to run on. The default is processor 0
              Numbers are separated by commas and may include ranges. Eg.
              0,3,7-11

       -m maxlat
              Maximum latency in nanoseconds. The default is 20000. If the
              maximum is exceeded, that run of queuelat quits.

       -n cycles
              Extimated number of cycles it takes to process one packet. The
              default is 300

       -f     Set the scheduling policy to SCHED_FIFO. This is the default if
              not specified.

       -r     Set the scheduling policy to SCHED_RR.

       -p priority
              default priority = 1. Valid numbers are from 1 to 99

       -h     help

AUTHOR
       determine_maximum_mpps was written by
       Marcelo Tosatti <mtosatti@redhat.com>

       This man page was written by John Kacur <jkacur@redhat.com>

                               December 4, 2020      DETERMINE_MAXIMUM_MPPS(8)