Java application running quickly and smoothly on the AIX bitplatform. the Java process memory model on AIX for both 32- and 64-bit versions. The authors discuss AIX 32-bit process address space, how it affects the size of the Java heap you can get for y
Tutorial Details:
In the AIX product documentation the General Programming Concepts: Writing and Debugging Programs , the chapter on Large Program Support. Though we\'ll describe the address space models that are pertinent to the discussion of Java memory model, it is highly recommended you read both of these documents, especially if you use JNI in your Java applications.
AIX is an operating system that uses virtual memory to address more memory than is physically available in the system. The translation of effective (virtual, logical) addresses to physical (real) addresses for instruction and data storage access is done using both software constructed tables and PowerPC hardware. On the PowerPC CPU planar, there are 16 segment registers used to form effective addresses and provide memory protection at the segment level, so the process memory model on AIX is segmented. When a process is active, the registers contain the addresses of the16 segments addressable by that process, which forms its address space.
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