Latest enough memory not virtual Weblinks:
- Flat cell read only memory using common contacts for bit lines and virtual ground lines
In a flat cell read only memory, two bit lines or two virtual ground lines share a common contact such that the contact is slightly adjustable in its location for inserting a local metal word line without increasing the layout area to improve the reading speed of the memory. Moreover,...- Re: how to get physical memory address from virtual memory address
The virtual address allocation *does not* allocate physical pages to the allocated block - you only get a slice of the address space of your process. The virtual address is connected (maybe temporarily) to a physical page when it's accessed and a page fault handler decides to give the physical addresses.- Re: how to get physical memory address from virtual memory address
Hari wrote: You have to do this in the kernel. Firstly, the page obviously has to be nailed down (unswappable). Otherwise it has no fixed physical address. When paged out, it has no address at all, and may get a different physical address each time it is paged out. You can do this using the get_user_pages() kernel function, which will- Re: how to get physical memory address from virtual memory address
What?? This is entirely incorrect. EVERY valid virtual address has an associated physical address. In the case of malloc-ed memory, that physical address will be in physical memory. Addressing the OP, while you are in user mode, the physical address can change at any time. The only reliable way to get the physical address is- How Much System Memory Is Really Enough?
When it comes to adding memory, we all have to deal with the cost vs. speed equation. So how much memory do you really need? Our tester got some surprising results.- Digg: How Much System Memory Is Really Enough?
When it comes to adding memory, we all have to deal with the cost vs. speed equation. So how much memory do you really need? Our tester got some surprising results.
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