Most of the infrastructure that 'perf' uses here has been reused
  from the Git project, as of version:
  
      66996ec: Sync with 1.6.2.4
  
  Here is an (incomplete!) list of main contributors to those files
  in util/* and elsewhere:
  
   Alex Riesen
   Christian Couder
   Dmitry Potapov
   Jeff King
   Johannes Schindelin
   Johannes Sixt
   Junio C Hamano
   Linus Torvalds
   Matthias Kestenholz
   Michal Ostrowski
   Miklos Vajna
   Petr Baudis
   Pierre Habouzit
   René Scharfe
   Samuel Tardieu
   Shawn O. Pearce
   Steffen Prohaska
   Steve Haslam
  
  Thanks guys!
  
  The full history of the files can be found in the upstream Git commits.