Section 8 · System administration
queuelat.8
Package: realtime-tests
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QUEUELAT
NAME
SYNOPSIS
DESCRIPTION
OPTIONS
AUTHOR
SPDX-License-Identifier: GPL-2.0-or-later
NAME
queuelat − Queue latency test program
SYNOPSIS
queuelat [-c|—cycles N] [-f|—freq F] [-h|—help] [-m|—max-len LEN] [-p|—packets F] [-q|—queue-len N] [-t|—timeout TIME]
DESCRIPTION
queuelat simulates a network queue checking for latency violations in packet processing.
OPTIONS
A summary of options is included below. **
−c, −−cycles=N**
Estimated number of cycles it takes to process one packet. This value should come from the envisioned packet forwarding application being simulated.
−f, −−freq=F
TSC frequency in MHz.
−h, −−help
Show help
−m, −−max-len=N
Maximum allowed latency, in nanoseconds. If latency to process any packet exceeds this value, the program quits, writing a message to the trace buffer.
−p, −−packets=F
Million packets per second that arrive for processing.
−q, −−queue-len=N
Minimum queue length to print in the trace
−t, −−timeout=TIME
Timeout in seconds to quit the program.
AUTHOR
queuelat was written by Marcelo Tosatti <mtosatti@redhat.com>