Memory Check [32|64bit] ======================== All the memory available on the system is divided into 4 main areas, 2K per page, as explained below. If the system currently has less than the required amount of memory in the physical memory area it will be allocated from the virtual memory area, otherwise the system will give up an amount of physical memory that's the difference. To make memory reclaiming more efficient the virtual memory area is divided into 2 buffers, with an area of 4KB that's reserved for software use and an area of 4KB that's reserved for the OS and so the kernel can free these areas as quickly as possible. The rest of the virtual memory space is allocated by the kernel when it creates new processes. The system is set up to use memory from the hard drive instead of the hard disk if there's a lot of free memory available and there's no need to immediately switch to the disk. Memory is allocated and freed in real time as the system's virtual memory is used. If there's free memory on the disk, the OS will use it instead. This works better if the OS needs to be swapped and if it's swapping from the hard disk. Memory Space Theoretical: ======================== Theoretically the whole 4GB address space is available to software. The OS only has 4MB of physical memory in its address space though as a matter of security. Physical Memory: ================ The most important part of memory is the physical memory as it's what the system actually uses to manage processes. To create processes an area of virtual memory is allocated and a pointer to that area is set. When the system creates a process the kernel will copy the contents of that address into the address space of the process. This copies the data so that the address and data space are independent and the data can be read and written as it's required by the process. The amount of physical memory allocated to each process is configurable. Memory Layout: ================ Below is a diagram showing how the memory is split up. The Virtual Memory area is divided into 2 areas, the Kernel and the user. The kernel's buffer of 4KB is in the middle and the remaining 4KB is allocated by the kernel to the process.  CONTROL CHAR Command-Line COMMAND MODE Numeric or Octal Number specifying the command-line VARIABLES WINDOW Count of processes displaying statistics STATISTICS CPU Time spent in user mode by processes STATISTICS MEMORY User allocated RAM by processes STATISTICS USED MALLOC Memory available for use by processes STATISTICS DESC Describe Command Line Example: MemCheck /? MemCheck /? MemCheck /? MemCheck - C:\nMemCheck - Help MemCheck - List MemCheck - Describe MemCheck - Statistics MemCheck - Options MemCheck - Exit MemCheck - Statistics Information MemCheck - Status /C: Memory usage and statistics /C: can be used to commit and lock all the memory the current user has allocated. /G: Set the minimum RAM for a process to run. /G:D: Set the maximum RAM for a process to run. /L: Memory used by this console application. /L:D: Set the minimum RAM for a console application to run. /P: Look for all the processes that are using memory on this system. /P:C: Commits the memory currently used by all the processes on this system. /P:L:Locks all the memory on this system. /S: Show current amount of physical memory on the system. /S:D: Set the maximum RAM for a process to run. /S:G: Set the minimum RAM for a process to run. /S:L:Locks the RAM currently in use by all the processes on this system. /S:P: Print the processes that have at least the specified amount of RAM assigned. /S:D: Set the minimum RAM for a console application to run. /S:L:Locks the RAM currently in use by all the console applications on this system. /S:P: Prints all the processes that are using the specified amount of RAM. /S:L: Locks all the memory on this system. /S:L:D: Set the minimum RAM for a console application to run. /S:D: Set the maximum RAM for a console application to run. /S:L:Locks the RAM currently in use by all the console applications on this system. /S:M What's New In Memory Check? System Requirements For Memory Check: * 5.0 GHz Intel Core i5-2500K or better * 8 GB System RAM * NVIDIA GeForce GTX 760 or better * CD-ROM required for installation * Windows 7 or higher Additional requirements for installation: * Internet access * Windows DVD burner or external device * English language version of game Recommended PC configuration: * 5.0 GHz Intel Core i7-2600K or better *
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