IBM User Guide for Java V7 on Windows > Reference > Command-line options > JVM command-line options

-XtlhPrefetch (64-bit)

Speculatively prefetches bytes in the thread local heap (TLH) ahead of the current allocation pointer during object allocation.

-XtlhPrefetch

This option helps reduce the performance cost of subsequent allocations.

Parent: JVM command-line options

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