Messages in this thread |  | | Date | Tue, 25 Sep 2001 13:55:37 +0300 | From | VDA <> | Subject | Re: Linux VM design |
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Hello Dan, Monday, September 24, 2001, 10:11:08 PM, you wrote:
DM> I hope this isn't the wrong place to ask this but, wouldn't it be better to DM> increase ram size and decrease swap size as memory requirements grow? For DM> instance, say I have a lightly loaded machine, that has 192MB of ram. From DM> everything I've heard in the past, I'd use roughly 192MB of swap with this DM> machine. The problem I would imagine is that if all 192MB got used wouldn't DM> it be terribly slow to read/write that much data back in? Would less swap, DM> say 32 MB make the kernel more restrictive with it's available memory and DM> make the box more responsive when it's heavily using swap?
If you want everything to be fast, buy more RAM and use no swap whatsoever.
Swap is useful if your total memory requirements are big but working set is significantly smaller. You need RAM to cover working set and RAM+swap to cover total memory requirements.
As you can see, amount of RAM and swap thus *application dependent*. -- Best regards, VDA mailto:VDA@port.imtp.ilyichevsk.odessa.ua
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