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Feature #2893

open

automatic simulator for large LU load

Added by laforge about 4 years ago. Updated over 2 years ago.

Status:
Stalled
Priority:
Low
Assignee:
-
Category:
-
Target version:
-
Start date:
01/27/2018
Due date:
% Done:

0%

Spec Reference:

Description

Every so often we see systems suffering a lot from large LU load.

There are many tunables like each tx delay/integer, access control class ramping, ms-acces-lv-min ramping, doewnlink poweer ramping, im ass reejct timer, etc

In order to be able to test different configurations and possible patches, we need a reproducible test scenario for benchmarking our performance.

Ideally this shoiuld be possible with osmocombb and virtphy. For just performing a LU, we don't even need scripting. However, we need
  • starting large number of "mobile"
  • realistic timing for network scan / cell search (virtphy is too fast)
  • implementation of downlink attenuation
  • detection of RACH collisions in bts-virtual

Related issues

Related to OsmoBSC - Feature #2722: document RACH tuning parameters more thoroughly, give explanationsResolveddaniel12/08/2017

Actions
Related to OsmoBSC - Feature #2591: ramp up cell slowly based on access control class to avoid severe RACH/SDCCH overloadResolvedstsp10/23/2017

Actions
Blocked by Cellular Network Infrastructure - Feature #2558: Scripts to manage thousands of "mobile" and hundreds of osmo-bts-virtual instancesStalled10/06/2017

Actions
Blocked by OsmocomBB - Feature #2555: script interface to OsmocomBB "mobile"Stalledzecke10/06/2017

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