Performance results of Drools PDP

1 Summary
2 Result
- 2.1 Time taken by Drools PDP
- 2.2 CPU Utilization
- 2.3 Memory Utilization
3 Performance Metrics

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

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

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.