1QUEUELAT(8)                 System Manager's Manual                QUEUELAT(8)
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5# SPDX-License-Identifier: GPL-2.0-or-later
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NAME

8       queuelat - Queue latency test program
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SYNOPSIS

11       queuelat  [-c|--cycles  N] [-f|--freq F] [-h|--help] [-m|--max-len LEN]
12       [-p|--packets F] [-q|--queue-len N] [-t|--timeout TIME]
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DESCRIPTION

15       queuelat simulates a network queue checking for latency  violations  in
16       packet processing.
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OPTIONS

20       A summary of options is included below.
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22       -c, --cycles=N
23              Estimated  number of cycles it takes to process one packet. This
24              value should come from the envisioned packet forwarding applica‐
25              tion being simulated.
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27       -f, --freq=F
28              TSC frequency in MHz.
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30       -h, --help
31              Show help
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33       -m, --max-len=N
34              Maximum  allowed  latency, in nanoseconds. If latency to process
35              any packet exceeds this value, the program quits, writing a mes‐
36              sage to the trace buffer.
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38       -p, --packets=F
39              Million packets per second that arrive for processing.
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41       -q, --queue-len=N
42              Minimum queue length to print in the trace
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44       -t, --timeout=TIME
45              Timeout in seconds to quit the program.
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AUTHOR

49       queuelat was written by Marcelo Tosatti <mtosatti@redhat.com>
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53                                 Sept 3, 2018                      QUEUELAT(8)