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On Wed, Jul 8, 2009 at 8:51 AM, Frank Peters<frank.peters@×××××××.net> wrote: |
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> However, I am not clear on how tmpfs will fail. If the tmpfs mount |
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> becomes filled or exceeds the file limit, since it is essentially just |
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> another disk partition shouldn't it produce a "No more space left on device" |
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> error? Or is the system designed to extend the tmpfs through swapping? |
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> The latter option doesn't seem right, but everyone still refers to such |
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> behavior. |
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|
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I'm certainly not an expert but my understanding is that it will not |
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exceed the size given (or defaulted - half of system RAM?) - but the |
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part about resizing and using swap I believe has more to do with how |
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it uses the available RAM in the system. In other words if you have a |
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2 gig tmpfs it's not going to eat up 2gb of your RAM unless you have |
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actually put 2gb of files onto it. So it dynamically uses RAM when |
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necessary. If the files in the tmpfs exceed the available RAM on the |
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system, then it'll do what any other out-of-memory situation would do: |
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swap. |
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