`ru_maxrss` in the result of `getrusage` is in bytes on macOS
hanwentao opened this issue · comments
According to the manpage of getrusage on macOS, ru_maxrss is in bytes, which contradicts the statement in nix's doc.
Quote from man getrusage on macOS:
ru_maxrss the maximum resident set size utilized (in bytes).
nix's doc on Usage:
The resident set size at its peak, in kilobytes.
Thanks for reporting this! This issue is interesting.
According to the manpage of getrusage on macOS, ru_maxrss is in bytes, which contradicts the statement in nix's doc.
The online man page, says it is in kilobytes. But a newer version of man pages (extracted from Xcode by a community user), says that it is in bytes.
I guess that Apple changed this interface in a specific version, a rough search leads me to this post, it seems that this change has been made for more than 4 years.