What Is Cache Memory in Linux?
Contents Cached Memory Is Memory That Linux Uses for Disk Caching. However, This Doesn’t Count as “Used” Memory, Since It Will Be Freed When Applications...
Cached memory is memory that Linux uses for disk caching. However, this doesn’t count as “used” memory, since it will be freed when applications require it. Hence you don’t have to worry if a large amount is being used.
What is cache in Linux?
Under Linux, the Page Cache accelerates many accesses to files on non volatile storage. This happens because, when it first reads from or writes to data media like hard drives, Linux also stores data in unused areas of memory, which acts as a cache.
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Why cache memory is used in Linux?
Linux always tries to use RAM to speed up disk operations by using available memory for buffers (file system metadata) and cache (pages with actual contents of files or block devices). This helps the system to run faster because disk information is already in memory which saves I/O operations.