[#50113] k0kubunさんをERBのコミッタに推薦します — Masatoshi SEKI <m_seki@...>
咳といいます。
5 messages
2017/05/13
[ruby-dev:50139] [Ruby trunk Feature#11952] Use getrusage for Process.times if available
From:
akr@...
Date:
2017-05-27 22:22:53 UTC
List:
ruby-dev #50139
Issue #11952 has been updated by akr (Akira Tanaka). It seems fine. Actually, times(3) is implemented using getrusage(2) on NetBSD. http://cvsweb.netbsd.org/cgi-bin/cvsweb.cgi/src/lib/libc/gen/times.c?rev=1.15&content-type=text/x-cvsweb-markup Also, times(2) seems to obtain same result of getrusage(2) on Linux. https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/kernel/sys.c ---------------------------------------- Feature #11952: Use getrusage for Process.times if available https://bugs.ruby-lang.org/issues/11952#change-65136 * Author: k0kubun (Takashi Kokubun) * Status: Open * Priority: Normal * Assignee: * Target version: ---------------------------------------- Since times(3) has poor precision, I want to use getrusage(2) for Process.times to get better precision if getrusage is available. before: Process.times #=> #<struct Process::Tms utime=0.06, stime=0.02, cutime=0.02, cstime=0.03> after: Process.times #=> #<struct Process::Tms utime=0.065265, stime=0.026326, cutime=0.023249, cstime=0.029963> ---Files-------------------------------- 0001-Use-getrusage-for-Process.times-if-available.patch (1.54 KB) -- https://bugs.ruby-lang.org/