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Heap Space usage with Java 1.8
- Java 1.8 changed changes the memory management in way that the JVM allocates heap space depending on the available physical memory (1/64).
- This results in the fact that JobScheduler tasks are allocated a lot of more memory than required. Typically such jobs, e.g. the JITL jobs, can be operated with 32 MB to 64 MB. However, for a server equipped with 64 GB physical memory each task will be allocated 1 GB by default.
- It is therefore recommended to reduce the memory consumption by JobScheduler settings, see chapter Modify heap size settings.
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