[dts] [PATCH V3 2/5] doc/dts_gsg/pktgen_prog_guide: update description
yufengmx
yufengx.mo at intel.com
Fri Nov 29 10:03:12 CET 2019
*. update test methods(latency/loss/throughput/rfc2544) input parameters description.
*. add rfc2544 dichotomy usage document.
Signed-off-by: yufengmx <yufengx.mo at intel.com>
---
doc/dts_gsg/pktgen_prog_guide.rst | 86 ++++++++++++++++++++++++++-----
1 file changed, 73 insertions(+), 13 deletions(-)
diff --git a/doc/dts_gsg/pktgen_prog_guide.rst b/doc/dts_gsg/pktgen_prog_guide.rst
index 32d2082..e0fdcf4 100644
--- a/doc/dts_gsg/pktgen_prog_guide.rst
+++ b/doc/dts_gsg/pktgen_prog_guide.rst
@@ -145,7 +145,7 @@ define a stream transmit behavior.
basic content including::
- 'rate': 0 ~ 100 int type
+ 'rate': 0 ~ 100 int type, port line rate should set it.
'transmit_mode': TRANSMIT_CONT/TRANSMIT_S_BURST
TRANSMIT_CONT define a continuous transmit.
TRANSMIT_S_BURST define a burst transmit with custom number of packets.
@@ -332,9 +332,22 @@ option
traffic_option = {
# test method name, if use `measure_throughput`, ignore this key
'method': 'throughput',
- # port rate percent
+ # port rate percent, float(0--100), default value is 100.(reserved)
'rate': 100,
- # transmit lasting time second
+ # warm up time before start main transmission. If it is set, it will start
+ # a custom time transmission to make sure packet generator under good
+ # status. It is an optional key.
+ 'delay': 5,
+ # the interval time of get throughput statistic (second).
+ # If set this key value, pktgen will return several throughput statistic
+ # data in a duration. If not set this key value, only return one statistic
+ # data. It is used coupled with `duration` option.
+ 'interval': 1,
+ # this key works with ``interval`` key. If it is set, the callback
+ # of suite level will be executed after getting throughput statistic.
+ # callback method should define as below, don't add sleep in this method.
+ 'callback' : callback_method,
+ # transmission lasting time(second), default value is 10 second.
'duration': 5}
return value
@@ -358,9 +371,13 @@ option
traffic_option = {
# test method name, if use `measure_loss`, ignore this key
'method': 'loss',
- # port rate percent
+ # port rate percent, float(0--100), default value is 100.(reserved)
'rate': 100,
- # transmit lasting time second
+ # warm up time before start main transmission. If it is set, it will start
+ # a custom time transmission to make sure packet generator under good
+ # status. It is an optional key.
+ 'delay': 5,
+ # transmission lasting time(second), default value is 10 second.
'duration': 5}
return value
@@ -382,9 +399,13 @@ option
traffic_option = {
# test method name, if use `measure_latency`, ignore this key
'method': 'latency',
- # port rate percent
+ # port rate percent, float(0--100), default value is 100.(reserved)
'rate': 100,
- # transmit lasting time second
+ # warm up time before start main transmission. If it is set, it will start
+ # a custom time transmission to make sure packet generator under ready
+ # status. It is an optional key.
+ 'delay': 5,
+ # transmission lasting time(second), default value is 10 second.
'duration': 5}
return value
@@ -398,7 +419,7 @@ return value
rfc2544 option
--------------
-single stream & rfc2544
+rfc2544 testing scenario by decreasing step.
option
++++++
@@ -406,15 +427,19 @@ option
.. code-block:: python
traffic_option = {
- # test method name, if use `measure_rfc2544`, ignore this key
+ # test method name, if use `measure_rfc2544`, ignore this key.
'method': 'rfc2544',
- # port rate percent at first round testing, 0 ~ 100, default is 100
+ # port rate percent at first round testing, 0 ~ 100, default is 100.
'rate': 100,
- # permit packet drop rate
+ # permit packet drop rate, default is 0.001.
'pdr': 0.001,
- # port rate percent drop step, 0 ~ 100 , default is 1
+ # port rate percent drop step, 0 ~ 100 , default is 1.
'drop_step': 1,
- # transmit lasting time second
+ # warm up time before start main transmission. If it is set, it will start
+ # a custom time transmission to make sure packet generator under ready
+ # status. It is an optional key.
+ 'delay': 5,
+ # transmission lasting time(second), default value is 10 second.
'duration': 5}
return value
@@ -424,6 +449,41 @@ return value
loss_stats = (loss_rate, tx_pkts, rx_pkts)
+rfc2544_dichotomy option
+------------------------
+rfc2544 testing scenario using dichotomy algorithm.
+
+option
+++++++
+
+.. code-block:: python
+
+ traffic_option = {
+ # test method name, if use `measure_rfc2544_dichotomy` method, ignore this key.
+ 'method': 'rfc2544_dichotomy',
+ # dichotomy algorithm lower bound rate percent, default is 0.
+ 'min_rate': 0,
+ # dichotomy algorithm upper bound rate percent, default is 100.
+ 'max_rate': 100,
+ # dichotomy algorithm accuracy, default 0.001.
+ 'accuracy': 0.001,
+ # permit packet drop rate, default is 0.001.
+ 'pdr': 0.001,
+ # warm up time before start main transmission. If it is set, it will start
+ # a custom time transmission to make sure packet generator under ready
+ # status. It is an optional key.
+ 'delay': 5,
+ # transmission lasting time(second), default value is 10 second.
+ 'duration': 10}
+
+return value
+++++++++++++
+
+.. code-block:: python
+
+ loss_stats = (loss_rate, tx_pkts, rx_pkts)
+
+
reference example
=================
This example show how to use pktgen in suite script. In fact, most scenario are
--
2.21.0
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