Section 8 · System administration
determine_maximum_mpps.8
Package: realtime-tests
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DETERMINE_MAXIMUM_MPPS
NAME
SYNOPSIS
DESCRIPTION
TERMINOLOGY
OPTIONS
AUTHOR
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>