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Revisiting Linux swap space size calculations
angch — Wed, 29/07/2009 - 21:33
Back in the early days of Linux, the rule of thumb for sizing your swap partition is "twice the amount of RAM". But does that still apply to modern hardware where we regularly have 16 GB or more?
4 schools of thought:
- $ram * 2 (I call it the "jurassic" method)
- $ram > 2048 ? $ram + 2048 : $ram * 2 (aka "redhat", see below)
- $ram <= 2 GB ? 1.5 * $ram : ($ram <= 8 GB ? $ram : 0.75 * $ram) (aka "oracle", see below)
- 4GB (I call it "angch's")
Last school of thought is mine, and the rationale behind it includes:
