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Re: currency based virtual memory
From: |
Neal H. Walfield |
Subject: |
Re: currency based virtual memory |
Date: |
07 Nov 2002 10:49:09 -0500 |
User-agent: |
Gnus/5.0808 (Gnus v5.8.8) Emacs/21.2 |
> And it's all about the physical memory, space on the swap should be free, or
> at
> least a lot cheaper than physical memory.
Agreed. But consider the following:
memory_handle_t handle;
void *addr;
int i;
handle = memory_allocate (PAGE_SIZE, 1 /* count */, 0 /* flags */);
addr = vm_map (handle);
for (i = 0; ; i ++)
{
* (int *) addr = i;
vm_swap (handle);
memory_release_data (handle);
}
Which is to say, we just flooded the swap space with a few billion
pages while only having allocated one.
- currency based virtual memory, Sunnanvind Fenderson, 2002/11/02
- Re: currency based virtual memory, Farid Hajji, 2002/11/02
- Re: currency based virtual memory, Niels Möller, 2002/11/02
- Re: currency based virtual memory, Neal H. Walfield, 2002/11/02
- Re: currency based virtual memory, Sunnanvind Fenderson, 2002/11/04
- Re: currency based virtual memory, Matthew Sackman, 2002/11/07
- Re: currency based virtual memory, Niels Möller, 2002/11/07
- Re: currency based virtual memory,
Neal H. Walfield <=
- Re: currency based virtual memory, Matthew Sackman, 2002/11/07
- Re: currency based virtual memory, Neal H. Walfield, 2002/11/07
- Re: currency based virtual memory, Niels Möller, 2002/11/07
- Re: currency based virtual memory, Neal H. Walfield, 2002/11/07
- Re: currency based virtual memory, Niels Möller, 2002/11/07
- Re: currency based virtual memory, Neal H. Walfield, 2002/11/07