February 26, 2013
  Branch: refs/heads/master
  Home:   https://github.com/D-Programming-Language/phobos
  Commit: 978ac725b5dd194d86a16755d105ce5a1762aa18
      https://github.com/D-Programming-Language/phobos/commit/978ac725b5dd194d86a16755d105ce5a1762aa18
  Author: jmdavis <jmdavisProg@gmx.com>
  Date:   2013-02-26 (Tue, 26 Feb 2013)

  Changed paths:
    M posix.mak
    A std/perf.d
    M unittest.d
    M win32.mak
    M win64.mak

  Log Message:
  -----------
  Revert "Merge pull request #1170 from jmdavis/perf"

This reverts commit 684c43dfc52105b232641965702a10295d0ba7cb, reversing changes made to 707a60101b41ac54af2f757beec89875fe51ac37.