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authorVratko Polak <vrpolak@cisco.com>2020-02-03 18:51:14 +0100
committerPeter Mikus <pmikus@cisco.com>2020-02-22 11:47:04 +0000
commit3c23979e8770e5d5e6dc104d36f20ea5697f3fcc (patch)
tree04ea5139ad3eccba15b12b513a6767a1d4748672 /docs/report/introduction/methodology_terminology.rst
parent815cbb45dff3fd759f2bd4608bb45ee7949dfc55 (diff)
Report: Edit minor details in methodology docs
Change-Id: I9bbb97e635b6ef438dcb8bed3f69617bb98e9779 Signed-off-by: Vratko Polak <vrpolak@cisco.com>
Diffstat (limited to 'docs/report/introduction/methodology_terminology.rst')
-rw-r--r--docs/report/introduction/methodology_terminology.rst10
1 files changed, 5 insertions, 5 deletions
diff --git a/docs/report/introduction/methodology_terminology.rst b/docs/report/introduction/methodology_terminology.rst
index db76827a5a..33ab116491 100644
--- a/docs/report/introduction/methodology_terminology.rst
+++ b/docs/report/introduction/methodology_terminology.rst
@@ -27,13 +27,13 @@ Terminology
methodology contains other parts, whose performance is either already
established, or not affecting the benchmarking result.
- **Bi-directional throughput tests**: involve packets/frames flowing in
- both transmit and receive directions over every tested interface of
+ both east-west and west-east directions over every tested interface of
SUT/DUT. Packet flow metrics are measured per direction, and can be
reported as aggregate for both directions (i.e. throughput) and/or
separately for each measured direction (i.e. latency). In most cases
bi-directional tests use the same (symmetric) load in both directions.
- **Uni-directional throughput tests**: involve packets/frames flowing in
- only one direction, i.e. either transmit or receive direction, over
+ only one direction, i.e. either east-west or west-east direction, over
every tested interface of SUT/DUT. Packet flow metrics are measured
and are reported for measured direction.
- **Packet Loss Ratio (PLR)**: ratio of packets received relative to packets
@@ -50,8 +50,8 @@ Terminology
Measured in packets-per-second (pps) or frames-per-second (fps),
equivalent metrics.
- **Bandwidth Throughput Rate**: a secondary metric calculated from packet
- throughput rate using formula: bw_rate = pkt_rate - (frame_size +
- L1_overhead) - 8, where L1_overhead for Ethernet includes preamble (8
+ throughput rate using formula: bw_rate = pkt_rate * (frame_size +
+ L1_overhead) * 8, where L1_overhead for Ethernet includes preamble (8
Bytes) and inter-frame gap (12 Bytes). For bi-directional tests,
bandwidth throughput rate should be reported as aggregate for both
directions. Expressed in bits-per-second (bps).
@@ -75,4 +75,4 @@ Terminology
bandwidth MRR expressed in bits-per-second (bps).
- **Trial**: a single measurement step.
- **Trial duration**: amount of time over which packets are transmitted and
- received in a single throughput measurement step.
+ received in a single measurement step.