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The past few days when on my pc I sometimes get a flashing notice "Virtual Memory is low and windows is increasing it", or something like thatand my pc runs slower than usual.......well I'm guessing i- MemUse 0.4 - Memory and swap file monitor
If you want to know the state of your memory usage but don't want to install a complex program, MemUse could well be the solution you need. This program, in the form of a tiny 7KB executable doesn't require any installation and will show up a small display containing information about the physical and virtual memory both available and used. It's extremely simple to use and the only option that you have is to choose whether the window is always on top or not. Features of the program: Tiny executable Shows Memory Information (Physical and Virtual) Stay On Top option (System Menu) Windows XP Theme support Shows Physical percentage value in the title of the window Can show memory usage in KB- Re: how to get physical memory address from virtual memory address
Hi all, Thanks for the response from you all. My aim is to execute SDRAM diagnostics code to find which part of SDRAM chip is failed. So in code, I am using malloc to allocte available free memory and then locking the memory using mlock. I think once the mlock is done the pages what ever is allocted during malloc will be in the- Re: how to get physical memory address from virtual memory address
So what happens if you 'malloc' more memory than is physically present? What happens if three programs each 'malloc' a block that is equal in size to half of physical memory? What would be the point of swap if this were the case? Yes, it can change at any time. It can even change such that there is not one. And because Linux is demand paged, when you first allocate or- Re: how to get physical memory address from virtual memory address
Unless of course the memory is swapped out at the moment, which is entirely possible after a fresh malloc() of a big chunk of memory. Correct- Re: how to get physical memory address from virtual memory address
Not true. When the respective page is swapped out, there is no physical address associated to given virtual address.- 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- How to fix virtual memory
Ok i just got 2gigabytes of ram for my emachine t1842 1.8 ghz cpu and i need to adjust the virtual memory for it..does anyone know good numbers that i can adjust it to based on the comp?
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