1QUEUELAT(8) System Manager's Manual QUEUELAT(8)
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6 queuelat - Queue latency test program
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9 queuelat [-c|--cycles N] [-f|--freq F] [-h|--help] [-m|--max-len LEN]
10 [-p|--packets F] [-q|--queue-len N] [-t|--timeout TIME]
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13 queuelat simulates a network queue checking for latency violations in
14 packet processing.
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18 A summary of options is included below.
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20 -c, --cycles=N
21 Estimated number of cycles it takes to process one packet. This
22 value should come from the envisioned packet forwarding applica‐
23 tion being simulated.
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25 -f, --freq=F
26 TSC frequency in MHz.
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28 -h, --help
29 Show help
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31 -m, --max-len=N
32 Maximum allowed latency, in nanoseconds. If latency to process
33 any packet exceeds this value, the program quits, writing a mes‐
34 sage to the trace buffer.
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36 -p, --packets=F
37 Million packets per second that arrive for processing.
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39 -q, --queue-len=N
40 Minimum queue length to print in the trace
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42 -t, --timeout=TIME
43 Timeout in seconds to quit the program.
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47 queuelat was written by Marcelo Tosatti <mtosatti@redhat.com>
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51 Sept 3, 2018 QUEUELAT(8)