Index: gprof/gprof.texi
===================================================================
RCS file: /cvs/src/src/gprof/gprof.texi,v
retrieving revision 1.30
diff -c -3 -p -r1.30 gprof.texi
*** gprof/gprof.texi	12 Jun 2009 15:33:30 -0000	1.30
--- gprof/gprof.texi	26 May 2010 14:56:26 -0000
*************** only a small amount of time, so that on 
*** 1613,1622 ****
  ought to catch that function in the act only once, there is a pretty good
  chance it will actually find that function zero times, or twice.
  
! By contrast, the number-of-calls and basic-block figures
! are derived by counting, not
! sampling.  They are completely accurate and will not vary from run to run
! if your program is deterministic.
  
  The @dfn{sampling period} that is printed at the beginning of the flat
  profile says how often samples are taken.  The rule of thumb is that a
--- 1613,1624 ----
  ought to catch that function in the act only once, there is a pretty good
  chance it will actually find that function zero times, or twice.
  
! By contrast, the number-of-calls and basic-block figures are derived
! by counting, not sampling.  They are completely accurate and will not
! vary from run to run if your program is deterministic and single
! threaded.  In multi-threaded applications the counts are only
! deterministic if the counting function is thread-safe.
! @xref{Implementation, ,Implementation of Profiling}.
  
  The @dfn{sampling period} that is printed at the beginning of the flat
  profile says how often samples are taken.  The rule of thumb is that a