AWS KiB - bits or bytes?-CodePudding

AWS describes a number of their performance metrics (e.g. disk IO block size) in terms of KiB.

Does the "K" in KiB mean kilobytes or or kilobits?

CodePudding user response：

KB is kilobytes, which is unclear whether people are referring to 1000 bytes or 1024 bytes.

KiB is kibibytes, which is guaranteed to be 1024 bytes.

A system of units based on powers of 2 in which 1 kibibyte (KiB) is equal to 1,024 (i.e., 210) bytes is defined by international standard IEC 80000-13 and is supported by national and international standards bodies (BIPM, IEC, NIST). The IEC standard defines eight such multiples, up to 1 yobibyte (YiB), equal to 10248 bytes.