May 2005
Intermediate to advanced
738 pages
18h 22m
English
Content preview from AIX 5L Practical Performance Tools and Tuning Guide
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2.2. Memory overview
To analyze memory, you first need to know how much memory you have. Example 2-5 on page 32 demonstrates how to find out how much memory your system has.
Example 2-5. Using lsattr
[node4][/]> lsattr -El mem0 goodsize 8192 Amount of usable physical memory in Mbytes False size 8192 Total amount of physical memory in Mbytes False |
The lsattr command will report the amount of memory in MB, so in the example above the machine has 8GB of memory.
2.2.1. Virtual memory manager (VMM) overview
In a multi-user, multi-processor environment, the careful control of system resources is paramount. System memory, whether paging space or real memory, when not carefully managed, can result in poor performance and even program and application ...
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