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What's using my swap (Ubuntu)?

Fresh3 days ago
Mar 15, 202640732 views
Confidence Score0%
0%

Problem

I have an Ubuntu 8.04 server which is running a database and a bunch of Java application servers. Its memory configuration and usage is: I noticed that swap goes up every afternoon, and is released some time at night. The demand is not the same on all days, and starts at different times. So it's pr…

Error Output

total       used       free     shared    buffers     cached
Mem:      16456176   15930028     526148          0      81372    9674196
-/+ buffers/ca…

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1 Fix

Canonical Fix
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Fix for: What's using my swap (Ubuntu)?

Low Risk

The swap usage patterns you describe don't sound surprising. They're consistent with some permanently-running processes having rarely-used pages. During the day, due to the high activity, the rarely-used pages are almost always in the swap. At night…

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