How to Better Approximate Memory Use on Unix
(Doc ID 812785.1)
Last updated on JULY 08, 2024
Applies to:
Oracle Fusion Middleware - Version 10.1.2.0.0 to 10.1.3.4.0 [Release AS10gR2 to AS10gR3]Information in this document applies to any platform.
Goal
On starting various oracle processes on unix, it is common to see that the physical machine rapidly runs out of memory as reported by 'top' or 'prstat.' This is typically seen when a database is involved as with for example Application Server 10.1.2.
In reality the machine may not have run out of RAM, nor be anywhere near the limit. The problem is that the 'top' and 'prstat' tools do not measure memory properly.
To get a better approximation of memory use on unix, you need to perform some calculations manually. This article tells you how to go about this.
Solution
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In this Document
| Goal |
| Solution |