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Kernel Trap: Linux: Is Swap Necessary?

Jun 02, 2004, 03:15 (9 Talkback[s])

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"Following recent discussions about tuning swapiness and dynamically allocating swap as needed, a new discussion ensued on the lkml questioning the need for swap altogether when a system has 'sufficient' ram.

"Nick Piggin explained that swap can improve performance no matter how much RAM you have, 'well it is a magical property of swap space, because extra RAM doesn't allow you to replace unused memory with often used memory. The theory holds true no matter how much RAM you have. Swap can improve performance. It can be trivially demonstrated.' This said, numerous Linux users do report success running a swapless system..."

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