Hi Richard,
On 20.04.2013 2:39, Richard Elling wrote:
you need a 32G swap device on any drive you like just to satisfy swap
allocation requirements coming from applications.
Not likely. Measure it before using generalizations.
...
So this box needs 187 MB of swap to back the anonymous pages.
right, this box needs 187 MB of swap _today_. It may happen that you'll
need 188 (or 186 or 2186 or 3187) MB tomorrow because of natural changes
in workload, so why to spend time measuring and configuring and checking
and re-checking your swap requirements on a regular basis while 32GB of
swap costs only $1.6 with 3TB SATA HDDs? I really think there are many
much more fascinating and economically sound areas in OS performance
tuning than precise swap sizing. Just let it be equal to your RAM size
and forget about it forever.
WBR,
Andrew
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