3 Benchmark Testing
This section describes the environment used for benchmarking Oracle Communications Cloud Native Core, Network Slice Selection Function (NSSF).
The default values or recommendations for any required software or resource are available from the third-party vendors. Benchmarking should be performed with the settings described in this section. Operators may choose different values.
The benchmark testing is performance testing with the fine-tuning done to improve the performance of NSSF. It is performed in the CNE environment.
3.1 Test Scenario-1: NSSF Performance with 10K TPS
3.1.1 Overview
To qualify the test run, you can consider the following elements:
- CPU and Memory utilization
- Ingress and Egress traffic rate
- Success rate
- Message request and response processing time
- Infrastructure resource requirements and utilization
Note:
The performance and capacity of the NSSF system may vary based on the call model, Feature or Interface configuration, and underlying CNE and hardware environment.3.1.2 NSSF Features
Table 3-1 NSSF Features
| NSSF Features | Status for benchmarking |
|---|---|
| Auto-Population of Configuration Based on NsAvailability Update | ENABLED |
| Handover from EPS to 5G | ENABLED |
| Subscription Modification Feature | ENABLED |
| Optimized NSSAI Availability Data Encoding and TAI Range | ENABLED |
| Support Indirect Communication | ENABLED |
| Multiple PLMN Support | ENABLED |
| Integration with ASM | ENABLED |
| Supports Compression Using Accept-Encoding or Content-Encoding gzip | ENABLED |
| OAuth Access Token Based Authorization with K-id | ENABLED |
| Protection from Distributed Denial-of-Service (DDoS) Attack through Rate Limiting | ENABLED |
| Overload control | ENABLED |
Note:
Apart from these features being enabled, rest of the configurations have been made default.3.1.3 Software Test Constraints
Table 3-2 Software Test Constraints
| Test Constraint | Details |
|---|---|
| NSSF Version | 23.4.0 |
| Sidecar ENABLED/DISABLED | Enabled |
| TLS ENABLED/DISABLED | Enabled |
3.1.4 NSSF Call-Mix
NsSelection
Table 3-3 NsSelection
| Get Request Type | Traffic % | TPS |
|---|---|---|
| Initial Registration | 10% | 1000 |
| UE Config update | 5% | 500 |
| PDU establishment | 80% | 8000 |
| EPS to 5G HO | 5% | 500 |
NsAvailability
NsAvailability traffic is purely transactional, and records only 2 TPS.
3.1.5 Test Observations
The test scenarios in this section are based on the combination of NSConfig and NSSubscription microservices of NSSF.
3.1.5.1 General Observations
The following table provides observation data for the performance test that can be used for benchmark testing to increase the traffic rate.
Table 3-4 General Observations
| Parameter | Values |
|---|---|
| Test Duration | 144 hours |
| TPS Achieved | 10K |
3.1.5.2 Resource Utilization
The following table describes NSSF microservices and their utilization.
CNE Common Applications
| CNE Services | CPU | Memory |
|---|---|---|
| prometheus | 2316m | 20564Mi |
| alertmanager | 7m | 130Mi |
| Total OCCNE | 3329m | 65436Mi |
NSSF Services
Table 3-5 NSSF Services
| Service | Total CPU (m) | Total Memory (Mi) |
|---|---|---|
| <helm-release-name>-alternate-route | 2 | 369 |
| <helm-release-name>-appinfo | 16 | 235 |
| <helm-release-name>-config-server | 4 | 363 |
| <helm-release-name>-egress-gateway | 7 | 1285 |
| <helm-release-name>-ingress-gateway | 10426 | 11875 |
| <helm-release-name>-nrf-client-nfdiscovery | 6 | 988 |
| <helm-release-name>-nrf-client-nfmanagement | 11 | 984 |
| <helm-release-name>-nsauditor | 1 | 413 |
| <helm-release-name>-nsavailability | 14 | 1399 |
| <helm-release-name>-nsconfig | 7 | 521 |
| <helm-release-name>-nsselection | 11839 | 6607 |
| <helm-release-name>-nssubscription | 2 | 160 |
| <helm-release-name>-perf-info | 2 | 464 |
ASM Sidecar
Table 3-6 ASM Sidecar
| Service | Total CPU (m) | Total Memory (Mi) |
|---|---|---|
| <helm-release-name>-alternate-route | 4 | 160 |
| <helm-release-name>-appinfo | 3 | 162 |
| <helm-release-name>-egress | 9 | 340 |
| <helm-release-name>-ingress-gateway | 5703 | 891 |
| <helm-release-name>-nsauditor | 5 | 161 |
| <helm-release-name>-nsavailability | 16 | 330 |
| <helm-release-name>-nsconfig | 8 | 166 |
| <helm-release-name>-nsselection | 4476 | 1011 |
| <helm-release-name>-nssubscription | 6 | 163 |
| <helm-release-name>-nfdiscovery | 10 | 345 |
| <helm-release-name>-nfmanagement | 11 | 320 |
| <helm-release-name>-nsconfig-server | 6 | 163 |
| <helm-release-name>-perf-info | 4 | 160 |
cnDBTier Services
The following table provides observed values of cnDBTier services.
| cnDBTier Services | Value |
|---|---|
| Average Memory usage | 77244 Mi |
| Average CPU usage | 25897m |
| Write operations per second | 31 TPS |
| Read operations per second | 28000 TPS |
3.1.5.3 Latency Observations
The following table provides observed values in latency:
Table 3-7 Latency Parameters
| Latency Parameter | Details (Avg) |
|---|---|
| Turnaround time at INGRESS Simulator NsSelection | 9.8ms |
| Turnaround time at INGRESS Simulator NsAvailability | 44.5ms |
Table 3-8 NsSelection Ingress Gateway Latency
| Traffic percentile | min | max | avg |
|---|---|---|---|
| 50% | 6.13 ms | 6.71 ms | 6.38 ms |
| 90% | 8.28 ms | 9.80 ms | 8.57 ms |
| 95% | 9.65 ms | 20.2 ms | 10.5 ms |
| 99% | 12.3 ms | 119 ms | 18.6 ms |
Table 3-9 NsSelection Application Latency
| Traffic percentile | max | avg | current |
|---|---|---|---|
| 50% | 5.53 ms | 5.34 ms | 5.29 ms |
| 90% | 7.04 ms | 6.41 ms | 6.40 ms |
| 95% | 26.7 ms | 6.94 ms | 7.04 ms |
| 99% | 129 ms | 20.4 ms | 25.6 ms |
Table 3-10 NsAvailability Ingress Gateway Latency
| Traffic percentile | min | max | avg |
|---|---|---|---|
| 50% | 20.5 ms | 23.4 ms | 21.6 ms |
| 90% | 22.4 ms | 75.9 ms | 25.5 ms |
| 95% | 22.7 ms | 179 ms | 27.8 ms |
| 99% | 23.2 ms | 261 ms | 30.9 ms |
Table 3-11 NsAvailability Application Latency
| Traffic percentile | max | avg | current |
|---|---|---|---|
| 50% | 29.4 ms | 26.4 ms | 23.9 ms |
| 90% | 60.1 ms | 30.7 ms | 28.5 ms |
| 95% | 166 ms | 33.7 ms | 36.6 ms |
| 99% | 166 ms | 33.6 ms | 36.6 ms |