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| <h3 class="section">22.4 Querying memory available resources</h3> |
| |
| <p>The amount of memory available in the system and the way it is organized |
| determines oftentimes the way programs can and have to work. For |
| functions like <code>mmap</code> it is necessary to know about the size of |
| individual memory pages and knowing how much memory is available enables |
| a program to select appropriate sizes for, say, caches. Before we get |
| into these details a few words about memory subsystems in traditional |
| Unix systems will be given. |
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| <ul class="menu"> |
| <li><a accesskey="1" href="Memory-Subsystem.html#Memory-Subsystem">Memory Subsystem</a>: Overview about traditional Unix memory handling. |
| <li><a accesskey="2" href="Query-Memory-Parameters.html#Query-Memory-Parameters">Query Memory Parameters</a>: How to get information about the memory |
| subsystem? |
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