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Mick wrote: |
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> On Saturday 30 May 2009, Nikos Chantziaras wrote: |
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> |
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>> Grant wrote: |
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>> |
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>>> I recently disabled swap and mounted /tmp on tmpfs for a netbook since |
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>>> the SSD is so slow, and now I'm wondering if that would be a wise move |
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>>> for all of my Gentoo systems. In what type of situation would it be a |
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>>> bad idea? |
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>>> |
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>> Instead of disabling swap, just make it small (like 32MB or something; |
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>> whatever the smallest allowable partition size is). The kernel needs |
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>> swap to operate optimally, even if it's extremely small. Just make sure |
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>> it's there. |
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>> |
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> |
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> Hmm, on this old box I noticed swap was using more than 135,000K earlier today |
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> as I was emerging xulrunner and ImageMagick. I think that the size of swap |
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> is relevant to the memory size that the box in question has. Not all |
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> machines have found their way to 2G RAM yet ... ;) |
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> |
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> |
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|
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Don't forget that you can set swapiness too. This is set in |
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/etc/sysctl.conf and for mine I have this: |
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vm.swappiness = 30 |
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The lower the number, the less chance of it using swap. If it is set to |
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90, it will use a lot of swap which is fine if you have little ram or a |
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really fast drive. If it is set to 30, then it will not use swap unless |
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it is basically out of ram. |
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|
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With the setting of 30, mine uses swap when compiling OOo or some other |
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large package or if I am opening a TON of pics. Otherwise, swap is at 0 |
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or close to it even after being up a long time. I have 2Gbs here tho. |
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Your mileage may vary. |
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|
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Dale |
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|
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:-) :-) |
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