PLRsearch: Use stat trackers to shorten Integrator

+ Extract several tracker classes and use them in Integrator.
+ Apply next_rate workarounds to focus more on critical region.
+ Rewrite stretch function, as the previous implementation was wrong.
+ Rework logging:
++ Use injected trace() function in Integrator.
++ Inject function that skips trace logging on default initialization.
++ Use the same multiprocessing-safe passing, but separate queue.
+ Set duration to 120m in Robot, but keep at 30m in Python.
+ Apply minor changes to make computations more reproducible:
++ Attempt to log everything needed by reproducibility in one line.
++ Log samples used, and make it settable as upper limit.
++ Use repr output in TRex scripts, to avoid rounding when copypasting.
+- Numpy seems to be sharing PRNG between processes.
+-- An edit to disable one thread is needed for full reproducibility.
+-- Such an edit is prepared, but will not be merged anytime soon.

Change-Id: Icf56429b34ab6de2d18a12e6c676e2d242b3ba4c
Signed-off-by: Vratko Polak <vrpolak@cisco.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/resources/libraries/robot/performance/performance_utils.robot b/resources/libraries/robot/performance/performance_utils.robot
index 2fd07824e9..e9eab2c08b 100644
--- a/resources/libraries/robot/performance/performance_utils.robot
+++ b/resources/libraries/robot/performance/performance_utils.robot
@@ -116,9 +116,9 @@
 | | ...
 | | ... | *Example:*
 | | ...
-| | ... | \| Find critical load usingPLR search \| \${1e-7} \| \${1800} \|
+| | ... | \| Find critical load using PLR search \| \${1e-7} \| \${120} \|
 | | ...
-| | [Arguments] | ${packet_loss_ratio}=${1e-7} | ${timeout}=${1800.0}
+| | [Arguments] | ${packet_loss_ratio}=${1e-7} | ${timeout}=${7200.0}
 | | ...
 | | ${min_rate} = | Set Variable | ${20000}
 | | ${average} | ${stdev} = | Perform soak search | ${frame_size}