2007-05-17 Joel Sherrill <joel.sherrill@oarcorp.com>

	* ChangeLog, configure.ac, libcsupport/src/__times.c,
	libmisc/cpuuse/cpuuse.c, libmisc/stackchk/check.c,
	rtems/include/rtems/rtems/ratemon.h, rtems/src/ratemongetstatus.c,
	rtems/src/ratemonperiod.c, rtems/src/ratemonreportstatistics.c,
	rtems/src/ratemonresetall.c, rtems/src/ratemontimeout.c,
	score/Makefile.am, score/include/rtems/score/thread.h,
	score/include/rtems/score/timespec.h, score/src/threaddispatch.c,
	score/src/threadinitialize.c, score/src/threadtickletimeslice.c,
	score/src/timespecdivide.c: Add nanoseconds granularity to the rate
	monotonic period statistics and CPU usage statistics. This capability
	is enabled by default although may be conditionally disabled by the
	user. It could be too much overhead on small targets but it does not
	appear to be bad in early testing. Its impact on code size has not
	been evaluated either. It is possible that both forms of statistics
	gathering could be disabled with further tweaking of the conditional
	compilation.
	* score/src/timespecdividebyinteger.c: New file.

1 files changed, 21 insertions, 2 deletions

diff --git a/cpukit/score/include/rtems/score/timespec.h b/cpukit/score/include/rtems/score/timespec.h
index 2ffde63fc2..cc65e4084a 100644
--- a/cpukit/score/include/rtems/score/timespec.h
+++ b/cpukit/score/include/rtems/score/timespec.h
@@ -135,7 +135,7 @@ void _Timespec_Subtract(
   struct timespec       *result
 );
 
-/** @brief Divide Timespec
+/** @brief Divide Timespec By Integet
  *
  *  This routine divides a timespec by an integer value.  The expected
  *  use is to assist in benchmark calculations where you typically 
@@ -147,12 +147,31 @@ void _Timespec_Subtract(
  *
  *  @return This method fills in @a result.
  */
-void _Timespec_Divide(
+void _Timespec_Divide_by_integer(
   const struct timespec *time,
   uint32_t               iterations,
   struct timespec       *result
 );
 
+/** @brief Divide Timespec
+ *
+ *  This routine divides a timespec by another timespec.  The 
+ *  intended use is for calculating percentages to three decimal points.
+ *
+ *  @param[in] lhs is the left hand number
+ *  @param[in] rhs is the righ hand number
+ *  @param[in] ival_percentage is the integer portion of the average
+ *  @param[in] fval_percentage is the thousandths of percentage
+ *
+ *  @return This method fills in @a result.
+ */
+void _Timespec_Divide(
+  const struct timespec *lhs,
+  const struct timespec *rhs,
+  uint32_t              *ival_percentage,
+  uint32_t              *fval_percentage
+);
+
 #ifdef __cplusplus
 }
 #endif