Performance measurements
The performance measurements in this information
were made on the IBM® z14™
system.
The programs used were batch-type (non-interactive) applications.
Unless otherwise indicated, all performance comparisons made in this
information are referencing CPU time performance and not elapsed time
performance.
Note:
Except where otherwise noted, performance comparisons
in this document are measured using microbenchmarks. Each microbenchmark
is designed to highlight the compiler's performance improvement in
a specific area. Real programs typically use a mix of features. A
program will only see a performance improvement from improvements
in the compiler if the program spends a significant percentage of
its time executing code that is affected by those improvements.

