Commit 10efecb8 authored by sof's avatar sof

[project @ 1999-03-02 20:00:50 by sof]

Win32 platforms: use native API to compute elapsed and user times.
parent 40aaaa64
/* -----------------------------------------------------------------------------
* $Id: Stats.c,v 1.9 1999/02/23 15:45:08 simonm Exp $
* $Id: Stats.c,v 1.10 1999/03/02 20:00:50 sof Exp $
*
* (c) The GHC Team, 1998-1999
*
......@@ -55,16 +55,20 @@
#include <unistd.h>
#endif
#ifdef HAVE_SYS_TIMES_H
#include <sys/times.h>
#ifndef _WIN32
# ifdef HAVE_SYS_TIMES_H
# include <sys/times.h>
# endif
#endif
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
#if defined(HAVE_SYS_RESOURCE_H) && ! irix_TARGET_OS
#include <sys/resource.h>
#if ! irix_TARGET_OS && ! defined(_WIN32)
# if defined(HAVE_SYS_RESOURCE_H)
# include <sys/resource.h>
# endif
#endif
#ifdef HAVE_SYS_TIMEB_H
......@@ -75,6 +79,10 @@
#include <stdlib.h>
#endif
#if HAVE_WINDOWS_H
#include <windows.h>
#endif
/* huh? */
#define BIG_STRING_LEN 512
......@@ -101,42 +109,81 @@ static double *GC_coll_times;
/* elapsedtime() -- The current elapsed time in seconds */
#ifdef _WIN32
#define NS_PER_SEC 10000000LL
/* Convert FILETIMEs into secs since the Epoch (Jan1-1970) */
#define FT2longlong(ll,ft) \
(ll)=(ft).dwHighDateTime; \
(ll) <<= 32; \
(ll) |= (ft).dwLowDateTime; \
(ll) /= (unsigned long long) (NS_PER_SEC / CLOCKS_PER_SEC)
#endif
#ifdef _WIN32
/* cygwin32 or mingw32 version */
double
elapsedtime(void)
{
FILETIME creationTime, exitTime, kernelTime, userTime;
long long int kT, uT;
/* ToDo: pin down elapsed times to just the OS thread(s) that
are evaluating/managing Haskell code.
*/
if (!GetProcessTimes (GetCurrentProcess(), &creationTime,
&exitTime, &kernelTime, &userTime)) {
/* Probably on a Win95 box..*/
return 0;
}
FT2longlong(kT,kernelTime);
FT2longlong(uT,userTime);
return (((StgDouble)(uT + kT))/TicksPerSecond - ElapsedTimeStart);
}
#else
double
elapsedtime(void)
{
#if ! (defined(HAVE_TIMES) || defined(HAVE_FTIME))
# if ! (defined(HAVE_TIMES) || defined(HAVE_FTIME))
/* We will #ifdef around the fprintf for machines
we *know* are unsupported. (WDP 94/05)
*/
fprintf(stderr, "NOTE: `elapsedtime' does nothing!\n");
return 0.0;
#else /* not stumped */
# else /* not stumped */
/* "ftime" may be nicer, but "times" is more standard;
but, on a Sun, if you do not get the SysV one, you are *hosed*...
*/
# if defined(HAVE_TIMES) && ! sunos4_TARGET_OS
# if defined(HAVE_TIMES) && ! sunos4_TARGET_OS
struct tms t;
clock_t r = times(&t);
return (((double)r)/TicksPerSecond - ElapsedTimeStart);
# else /* HAVE_FTIME */
# else /* HAVE_FTIME */
struct timeb t;
ftime(&t);
return (fabs(t.time + 1e-3*t.millitm - ElapsedTimeStart));
# endif /* HAVE_FTIME */
#endif /* not stumped */
# endif /* HAVE_FTIME */
# endif /* not stumped */
}
#endif /* !_WIN32 */
static nat
pagefaults(void)
{
# if !defined(HAVE_GETRUSAGE) || irix_TARGET_OS
/* ToDo (on NT): better, get this via the performance data
that's stored in the registry. */
# if !defined(HAVE_GETRUSAGE) || irix_TARGET_OS || defined(_WIN32)
return 0;
# else
struct rusage t;
......@@ -151,9 +198,10 @@ pagefaults(void)
void
start_time(void)
{
#ifdef HAVE_SYSCONF
long ticks;
/* Determine TicksPerSecond ... */
#ifdef HAVE_SYSCONF
ticks = sysconf(_SC_CLK_TCK);
if ( ticks == -1 ) {
fprintf(stderr, "stat_init: bad call to 'sysconf'!\n");
......@@ -161,17 +209,18 @@ start_time(void)
}
TicksPerSecond = (double) ticks;
#else /* no "sysconf"; had better guess */
# ifdef HZ
TicksPerSecond = (double) (HZ);
/* no "sysconf"; had better guess */
#elif defined(HZ)
TicksPerSecond = (StgDouble) (HZ);
# else /* had better guess wildly */
#elif defined(CLOCKS_PER_SEC)
TicksPerSecond = (StgDouble) (CLOCKS_PER_SEC);
#else /* had better guess wildly */
/* We will #ifdef around the fprintf for machines
we *know* are unsupported. (WDP 94/05)
*/
fprintf(stderr, "NOTE: Guessing `TicksPerSecond = 60'!\n");
TicksPerSecond = 60.0;
# endif
#endif
ElapsedTimeStart = elapsedtime();
......@@ -188,7 +237,6 @@ initStats(void)
fprintf(sf, " Alloc Collect Live GC GC TOT TOT Page Flts\n");
fprintf(sf, " bytes bytes bytes user elap user elap\n");
}
GC_coll_times =
(double *)stgMallocBytes(sizeof(double) * RtsFlags.GcFlags.generations,
"initStats");
......@@ -197,34 +245,54 @@ initStats(void)
}
}
#ifdef _WIN32
double
usertime(void)
{
FILETIME creationTime, exitTime, kernelTime, userTime;
long long int uT;
/* Convert FILETIMEs into long longs */
if (!GetProcessTimes (GetCurrentProcess(), &creationTime,
&exitTime, &kernelTime, &userTime)) {
/* Probably exec'ing this on a Win95 box..*/
return 0;
}
FT2longlong(uT,userTime);
return (((StgDouble)uT)/TicksPerSecond);
}
#else
double
usertime(void)
{
#if ! (defined(HAVE_GETRUSAGE) || defined(HAVE_TIMES))
# if ! (defined(HAVE_GETRUSAGE) || defined(HAVE_TIMES))
/* We will #ifdef around the fprintf for machines
we *know* are unsupported. (WDP 94/05)
*/
fprintf(stderr, "NOTE: `usertime' does nothing!\n");
return 0.0;
#else /* not stumped */
# else /* not stumped */
# if defined(HAVE_TIMES)
# if defined(HAVE_TIMES)
struct tms t;
times(&t);
return(((double)(t.tms_utime))/TicksPerSecond);
#else /* HAVE_GETRUSAGE */
# else /* HAVE_GETRUSAGE */
struct rusage t;
getrusage(RUSAGE_SELF, &t);
return(t.ru_utime.tv_sec + 1e-6*t.ru_utime.tv_usec);
# endif /* HAVE_GETRUSAGE */
#endif /* not stumped */
# endif /* HAVE_GETRUSAGE */
# endif /* not stumped */
}
#endif /* ! _WIN32 */
void
end_init(void)
......
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