Performance results of Drools PDP

Summary

Stability test plan was triggered for 72 hours injecting vCPE, vFirewall, vDNS, VOLTE onset & abatement (where applicable) messages through REST interface of Drools PDP installed in windriver lab (PFPP).

The test environment was set-up using simulated components i.e. A&AI, VFC and SO using "features enable controlloop-utils".

APPC response messages were injected in test plan wherever needed.

Average processing time was calculated using last 10000 records from audit.log for each use case using the below script

https://gerrit.onap.org/r/gitweb?p=policy/drools-applications.git;a=blob;f=testsuites/stability/src/main/resources/amsterdam/generate_performace_report.sh;h=846628543b5a127c49f57a1fa1f4a254dfff64da;hb=refs/heads/master

Result

Time taken by Drools PDP

Use case	Average time taken to execute one ONSET message	Sample taken for average
vCPE	3 ms	Last 10,000
vFirewall	2 ms	Last 10,000
vDNS	8 ms	Last 10,000
VOLTE	7 ms	Last 10,000

CPU Utilization

Average:        CPU     %user     %nice   %system   %iowait    %steal     %idle
Average:        all      0.84      0.00      0.23      0.02      0.00     98.91
Average:          0      1.16      0.00      0.30      0.00      0.00     98.54
Average:          1      1.00      0.00      0.25      0.00      0.00     98.75
Average:          2      1.21      0.00      0.33      0.00      0.00     98.46
Average:          3      0.78      0.00      0.18      0.00      0.00     99.03
Average:          4      0.77      0.00      0.18      0.00      0.00     99.04
Average:          5      0.80      0.00      0.28      0.12      0.00     98.80
Average:          6      0.54      0.00      0.13      0.00      0.00     99.33
Average:          7      0.49      0.00      0.14      0.00      0.00     99.37

Memory Utilization

Number of young garbage collection: 6711
Avg. Young garbage collection time: ~7.09 ms per collection
Number of Full garbage collection: 4
Avg. Full garbage collection time: ~197 ms per collection

 S0     S1     E      O      M     CCS    YGC     YGCT    FGC    FGCT     GCT  
0.00  90.62  45.71  21.36  97.74  93.42   6711   47.578     4    0.788   48.366

Performance Metrics

No.	Metric	Description	Result	Comments
1	Single Threaded Response Time	Measure the execution time for onset and abatement in each use case with only a single policy executing	vCPE - 3 ms vFirewall - 2 ms vDNS - 8 ms VOLTE - 7 ms	The average time taken is calculated based on last 10,000 samples in audit.log file.
2	Single Threaded CPU Usage	CPU Usage for each use case when executing alone	~ 1%
3	Single Threaded Memory Usage	Memory Usage for each use case when executing alone	~ 100 MB
4	Maximum Simultaneous Executions	Measure the maximum number of simultaneous policy executions that can be achieved whilst maintaining system stability and resource utilization	2	The current size of source/sink topics is 10. And 1 onset message results to 5 messages in sink topic. Hence we can only run 2 simaltaneous thread and assert the values coming in sink topics.