Memory problems on RH6.1

We are running Oracle 8.1.5 patch 1 on a Dual PIII 500 Mz with 2Gb Ram. We also have the 2.2.12smp version of the kernel. The database have an average of 340 conections. All the adjusts to kernel parameters were done. In a first moment the size of SGA was 1,3 Gb an it gave us some problems the size of free memory start to shrink while the cached size was increased. When the free memory finished, the cached memory was reduced till the moment the machine stopped. After a while the system came up again. This situation ocurred a lot of times. Then we reduced SGA to a value near 600 Mb. The behaviour was basically the same, free memory disapeared and cached memory started to shrink till a value near 315 Kb. After this it started to grow again till 450K and to go down to 315 Kb.
Does anyone have an explanation to this behaviour ? Can we do something ?

Tia.

Luiz

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Before you buy. Received on Mon Feb 14 2000 - 12:33:30 CST