Am 18.07.2010 16:16, schrieb Per Jessen:
Carlos E. R. wrote:
Plus the 2X rule is for Windows (3.x), not Linux.
It was often repeated in the context of UNIX admin articles and training.
Yes, but with no real support for saying so, for linux at least. Dunno about unix.
It's general issue on any system with virtual storage and how much swap space you need depends entirely on your workload. The problem in return is that most people do not know the workload, so in the early days when systems only rarely had more than 1Gb of memory, any everyday distro would expect to set up swap-space. How much? Uh well ... hence "twice your amount of memory". To accurate estimate amount of swap-space needed, you'll always need to know the workload, but with disk-space being as cheap as it is, who really cares? I have some mailservers where I always (the number grows regularly) allocate 16Gb for the system and 16Gb for swap.
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