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Non-volatile memory (NVM) or non-volatile storage is a type of computer memory that can retain stored information even after power is removed. In contrast, volatile memory needs constant power in order to retain data.
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An individual LBA range is called an LBA Range Entry and is represented by eight bytes. The LBA is expressed by the LBA Range Entry's first six bytes and the Range Length is a zero-based counter (e.g., 0=0 and 1=1) represented by the remaining two bytes. If the two-byte range length is zero, then the LBA Range Entry shall be discarded as ...
NVMe 2.0 added optional Zoned Namespaces (ZNS) feature and Key-Value (KV) feature, and support for rotating media such as hard drives. ZNS and KV allows data to be mapped directly to its physical location in flash memory to directly access data on an SSD. [ 45 ]
E.g., the HPSM RAT, or Register Alias Table, essentially used a CAM on the logical register number in combination with different versions of the register. In many ways, the story of out-of-order microarchitecture has been how these CAMs have been progressively eliminated. Small CAMs are useful; large CAMs are impractical. [citation needed]
Alias analysis is a technique in compiler theory, used to determine if a storage location may be accessed in more than one way. Two pointers are said to be aliased if they point to the same location. Alias analysis techniques are usually classified by flow-sensitivity and context-sensitivity. They may determine may-alias or must-alias information.
Aliasing can occur in any language that can refer to one location in memory with more than one name (for example, with pointers).This is a common problem with functions that accept pointer arguments, and their tolerance (or the lack thereof) for aliasing must be carefully documented, particularly for functions that perform complex manipulations on memory areas passed to them.
Such an alias name also follows the rules of a name: characters used (A-Z, -, 0-9, <space>) and not used (a-z, %, $, etc.). Alias names are also unique in the full name set (that is, all names and alias names are all unique in their combined set). Alias names are formally described in the Unicode Standard.