Mailinglist Archive: opensuse (4344 mails)
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Re: [SLE] How to detect if a swap partition is available and active?
- From: Anders Johansson <andjoh@xxxxxxxxxx>
- Date: Sun, 21 Aug 2005 00:04:32 +0200
- Message-id: <200508210004.32669.andjoh@xxxxxxxxxx>
On Saturday 20 August 2005 23:52, Robert Paulsen wrote:
> Simply allocating the memory does not cause the swapper to be used. Each
> page of the memory must be also touched.
One also has to declare all variables one uses, and return a value at the end
of the program, and change the permissions of the program to allow execution,
and.......
> Then, there will still not be much
> activity if the memory is not touched repeatedly, especially if you want to
> see both swap in and swap out.
That wasn't the object of the exercise at all. I said if you wanted to see if
the swap is actually working, not how well it's working, or how performant it
is, or how intelligent the algorithm is.
I said it was an interesting program, but just to see if swap is actually
working, it's overkill
> Simply allocating the memory does not cause the swapper to be used. Each
> page of the memory must be also touched.
One also has to declare all variables one uses, and return a value at the end
of the program, and change the permissions of the program to allow execution,
and.......
> Then, there will still not be much
> activity if the memory is not touched repeatedly, especially if you want to
> see both swap in and swap out.
That wasn't the object of the exercise at all. I said if you wanted to see if
the swap is actually working, not how well it's working, or how performant it
is, or how intelligent the algorithm is.
I said it was an interesting program, but just to see if swap is actually
working, it's overkill
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