Performance Manager uses process virtual address space to accumulate, summarize, and sort performance data for the presentation of graphs and reports. The input data that is provided to PA for reporting or graphing determines the amount of memory required. You may either count or estimate the number of items you have in the input data files to make an estimate for the amount of virtual memory needed.
Process data is generally the most likely category of performance data that occupies process virtual address space. PA allows you to save process data at various levels of detail, from process_mode (interactive, batch, network, or detached) to the most detailed level, by process ID (PID). If you choose the most detailed level of reporting or graphing, more virtual memory is required.
The following estimates assume a page size of 512 bytes. On OpenVMS I64 and Alpha systems, these would be considered pagelets.
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