i2Rest Server performance

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To measure performance of i2Rest Server, we made a comparative analysis of the processing speed of requests by i2Rest Server and IBM Integrated Web Services server (IWS)

Test server:

  • IBM i processor group P05, 8202-E4D (Power7+), 4CPU, 32Gb memory, 6Tb disk. OS V7R1M0

Test client:

  • SoapUI 5.5.0 on Windows 10, connected to test server via VPN

Test service:

Test task:

  • 10000 calls to test service using 50 parallel test threads


Test results:

Measure i2Rest Server IBM Integrated Web Services
Transactions per second

Number of service calls processed by server per second

1263.10 326.11
Memory consumption

The amount of auxiliary storage (in megabytes) that was allocated to the server job at the end of test

34 224
Peak memory consumption

The maximum amount of auxiliary storage (in megabytes) that was used by the server job

51 436
Number of threads

The number of active threads in the server job

22 107