Messages in this thread | | | From | linuxkernel@NewMail ... | Date | Mon, 2 Aug 1999 08:34:09 Gmt +2:00 | Subject | Questions regarding Linux swapping. |
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Hello.
There was a discussion of how to optimize Linux's swap partition on slashdot [www.slashdot.org] not that long ago.
I have read most of the messages in the discussion queue, I think I have learned something from those postings, but I do have several questions to ask you all.
Hope this is the right place to ask. If not, please forgive me.
From the Slashdot postings, there were mentions of swap-files and swap-partitions.
Let's say I have 4 harddisks (not partition, physically harddisks) in my machine.
Disk A is a 3 GB ide Disk B is a 2 GB ide Disk C is a 6 GB scsi Disk D is a 3 GB scsi
Should I set up swap-areas on each of the disks?
And if so, do I use swap-file or swap-partition?
What is the performance difference between swap-file and swap-partition?
And in the Slashdot discussions, there were mentioned about positioning swap-partition in specific areas of the disk to optimize diskhead read/write action.
Some says putting swap-partitions in the outter-rings of the disks, some says inner-rings, while others say somewhere in the middle.
I am confused.
Which one is correct?
Does it make much differences in positioning the disk-partitions in the inner-, middle-, or outer-rings of the disk?
There were also talks of how large the swap-areas (swap-files or swap-partitions) should one provide.
Some said the size of the swap-areas depend on the RAM size. Others said it depended on how many applications you use.
My question about it is:
How should I figure out how large should I make the swap-area on the disks?
Is there a formula of sort to give some estimation?
I am sorry if these questions were asked before, and I apologize again if this is not the proper forum to ask these questions.
But in any case, if you have any answer, please cc. a copy of your answer to me at linuxkernel@newmail.net please.
Before I forget, my machine is an Intel PIII 550, with 128M of RAM, and I do use a lot of applications that consume a lot of RAM space.
Thanks a bunch for any help I can get.
Best regards, Sean linuxkernel@newmail.net
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