March 2004
Intermediate to advanced
560 pages
14h 38m
English
Content preview from HP-UX 11i Tuning and Performance
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8.9. Memory Management Policies
The memory management system within HP-UX uses a variety of thresholds to enforce a consistent policy for memory management. Some of these thresholds–lotsfree, desfree, and gpgslim–are used in relation to freemem, the amount of memory currently free on the system.
A description of the basic HP-UX memory management parameters is in Table 8-5. Table 8-6 shows how the default values of the variable parameters are calculated.
| Parameter | Tuneable | Description | Comment |
|---|---|---|---|
| lotsfree | Yes | Upper bound where paging starts and the threshold at which paging stops. | The default is a variable number of pages based on physical memory size. |
| desfree | Yes | Lower bound where paging starts. | The default is ... |
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