Statement:
The performance results in this publication are not z/OSMF performance claims. It only represents the results in this test in my environment. You may get varied results depending on the used environment, such as hardware configuration, software configuration, and workloads.
Hardware environment:
Machine type-models: 8561 – T01
Model capacity: 7E5
Processor number: 1 dedicated GCP
Central storage: 8G
Software environment:
z/OS version: z/OS 2.4
z/OSMF version: 2.4
Java version: Java 8 SR5 FP30
Liberty_zos version: 20.0.0.3
Test driver:
https://github.com/plavjanik/zowe-zosmf-perftest-driver
zztop version: 1.2.2
Node.js version: v12.18.0
Zowe version: 6.25.0
The test driver was executed on the same z/OS system to avoid potential impact of network delay.
Test scenario:
The test simulated that 50 concurrent users send 4500 ZOWE CLI commands in 10 minutes. The command interval for each user is 5s. The whole test includes 9 types of Zowe CLI requests:
- DatasetUpload,
- DatasetDownload,
- FileUpload,
- FileDownload,
- TsoCommand,
- ConsoleCommand,
- JobSubmit,
- JobView,
- JobDownload.
The file size and member size used in the test are 10k.
Test results:
The total completed Zowe request number is 4500 and the average response time is 465.608 ms.
| Type of Zowe CLI test case |
# of completed requests |
Average response time (ms) |
| DatasetUpload |
500 |
1498.908 |
| DatasetDownload |
500 |
377.84 |
| FileUpload |
500 |
7.666 |
| FileDownload |
500 |
27.716 |
| TsoCommand |
500 |
1707.454 |
| ConsoleCommand |
500 |
60.092 |
| JobSubmit |
500 |
496.002 |
| JobView |
500 |
6.792 |
| JobDownload |
500 |
8.004 |
| Total |
4500 |
465.608 |
Please be noticed that the above Zowe CLI commands may drive one or multiple z/OSMF REST APIs. Here is the mapping between the above Zowe CLI commands and # of z/OSMF REST APIs called:
| Zowe test case |
# of z/OSMF REST API calls |
Zowe CLI commands |
| DatasetUpload |
2 |
zowe zos-files upload file-to-data-set |
| DatasetDownload |
1 |
zowe zos-files download data-set |
| FileUpload |
1 |
zowe zos-files upload file-to-uss |
| FileDownload |
1 |
zowe zos-files download uss-file |
| TsoCommand |
3 |
zowe zos-tso issue command |
| ConsoleCommand |
1 |
zowe zos-console issue command |
| JobSubmit |
3 |
zowe zos-jobs submit local-file --wait-for-otput
zowe zos-jobs delete job |
| JobView |
1 |
zowe zos-jobs view spool-file-by-id |
| JobDownload |
1 |
zowe zos-jobs download output |
So from the z/OSMF perspective, the total request number is 7000 and the average response time is 299.319 ms.
Resource usage:
From the RMF summary report, the system average CPU BUSY is 11.6%. From SDSF, the z/OSMF server IZUSVR1 consumed 10.73 CPU-TIME and 95040 EXCP-CNT in total during the test.
The following charts are the resource usage for each address space for reference. (not include TSO user address space)
The above tests are based on the IBM lab performance environment. The test results may different it depends on the environment. The above results are just for reference.