/* -----------------------------------------------------------------------------
- * $Id: Stats.c,v 1.2 1998/12/02 13:28:49 simonm Exp $
+ * $Id: Stats.c,v 1.19 1999/12/03 15:55:29 chak Exp $
+ *
+ * (c) The GHC Team, 1998-1999
*
* Statistics and timing-related functions.
*
#include "Rts.h"
#include "RtsFlags.h"
#include "RtsUtils.h"
-
-/**
- * Ian: For the moment we just want to ignore
- * these on Nemesis
- **/
-#ifdef _NEMESIS_OS_
-#ifdef HAVE_SYS_TIMES_H
-#undef HAVE_SYS_TIMES_H /* <sys/times.h> */
-#endif
-#ifdef HAVE_SYS_RESOURCE_H /* <sys/resource.h> */
-#undef HAVE_SYS_RESOURCE_H
-#endif
-#ifdef HAVE_SYS_TIME_H /* <sys/time.h> */
-#undef HAVE_SYS_TIME_H
-#endif
-#ifdef HAVE_SYS_TIMEB_H
-#undef HAVE_SYS_TIMEB_H /* <sys/timeb.h> */
-#endif
-#ifdef HAVE_UNISTD_H
-#undef HAVE_UNISTD_H /* <unistd.h> */
-#endif
-#ifdef HAVE_TIMES
-#undef HAVE_TIMES
-#endif
-#ifdef HAVE_FTIME
-#undef HAVE_FTIME
-#endif
-#ifdef HAVE_GETRUSAGE
-#undef HAVE_GETRUSAGE
-#endif
-#ifdef HAVE_SYSCONF
-#undef HAVE_SYSCONF
-#endif
-#endif /* _NEMESIS_OS_ */
-
+#include "StoragePriv.h"
+#include "MBlock.h"
+#include "Schedule.h"
#include "Stats.h"
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
-#ifdef HAVE_SYS_TIMES_H
-#include <sys/times.h>
+#ifndef __MINGW32__
+# 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>
+#ifdef __CYGWIN32__
+# ifdef HAVE_TIME_H
+# include <time.h>
+# endif
+#endif
+
+#if ! irix_TARGET_OS && ! defined(__MINGW32__)
+# if defined(HAVE_SYS_RESOURCE_H)
+# include <sys/resource.h>
+# endif
#endif
#ifdef HAVE_SYS_TIMEB_H
#include <stdlib.h>
#endif
+#if HAVE_WINDOWS_H
+#include <windows.h>
+#endif
+
/* huh? */
#define BIG_STRING_LEN 512
-static StgDouble ElapsedTimeStart = 0.0;
-static StgDouble TicksPerSecond = 0.0;
+static double ElapsedTimeStart = 0.0;
+static double TicksPerSecond = 0.0;
-static StgDouble InitUserTime = 0.0;
-static StgDouble InitElapsedTime = 0.0;
+static double InitUserTime = 0.0;
+static double InitElapsedTime = 0.0;
+static double InitElapsedStamp = 0.0;
-static ullong GC_tot_alloc = 0;
+static double MutUserTime = 0.0;
+static double MutElapsedTime = 0.0;
+static double MutElapsedStamp = 0.0;
-static StgDouble GC_start_time, GC_tot_time = 0; /* User GC Time */
-static StgDouble GCe_start_time, GCe_tot_time = 0; /* Elapsed GC time */
+static double ExitUserTime = 0.0;
+static double ExitElapsedTime = 0.0;
-static StgDouble GC_min_time = 0;
-static StgDouble GCe_min_time = 0;
-static lnat GC_maj_no = 0;
-static lnat GC_min_no = 0;
-static lnat GC_min_since_maj = 0;
-static lnat GC_live_maj = 0; /* Heap live at last major collection */
-static lnat GC_alloc_since_maj = 0; /* Heap alloc since collection major */
+static ullong GC_tot_alloc = 0;
+static ullong GC_tot_copied = 0;
+
+static double GC_start_time, GC_tot_time = 0; /* User GC Time */
+static double GCe_start_time, GCe_tot_time = 0; /* Elapsed GC time */
lnat MaxResidency = 0; /* in words; for stats only */
lnat ResidencySamples = 0; /* for stats only */
static lnat GC_start_faults = 0, GC_end_faults = 0;
+static double *GC_coll_times;
+
/* ToDo: convert this to use integers? --SDM */
/* elapsedtime() -- The current elapsed time in seconds */
-StgDouble
+#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);
+}
+
+#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 (((StgDouble)r)/TicksPerSecond - ElapsedTimeStart);
+ return (((double)r)/TicksPerSecond);
-# else /* HAVE_FTIME */
+# else /* HAVE_FTIME */
struct timeb t;
ftime(&t);
- return (fabs(t.time + 1e-3*t.millitm - ElapsedTimeStart));
+ return (fabs(t.time + 1e-3*t.millitm));
+
+# endif /* HAVE_FTIME */
+# endif /* not stumped */
+}
+#endif /* !_WIN32 */
+
+/* mut_user_time_during_GC() and mut_user_time()
+ *
+ * The former function can be used to get the current mutator time
+ * *during* a GC, i.e. between stat_startGC and stat_endGC. This is
+ * used in the heap profiler for accurately time stamping the heap
+ * sample.
+ *
+ * ATTENTION: mut_user_time_during_GC() relies on GC_start_time being
+ * defined in stat_startGC() - to minimise system calls,
+ * GC_start_time is, however, only defined when really needed (check
+ * stat_startGC() for details)
+ */
+double
+mut_user_time_during_GC(void)
+{
+ return (GC_start_time - GC_tot_time);
+}
-# endif /* HAVE_FTIME */
-#endif /* not stumped */
+double
+mut_user_time(void)
+{
+ return (usertime() - GC_tot_time);
}
+
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;
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");
stg_exit(EXIT_FAILURE);
}
- TicksPerSecond = (StgDouble) ticks;
+ TicksPerSecond = (double) ticks;
-#else /* no "sysconf"; had better guess */
-# ifdef 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();
void
initStats(void)
{
+ nat i;
FILE *sf = RtsFlags.GcFlags.statsFile;
- if (RtsFlags.GcFlags.giveStats) {
- fprintf(sf, " Alloc Collect Live Resid GC GC TOT TOT Page Flts\n");
- fprintf(sf, " bytes bytes bytes ency user elap user elap\n");
+ if (RtsFlags.GcFlags.giveStats >= VERBOSE_GC_STATS) {
+ 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");
+ for (i = 0; i < RtsFlags.GcFlags.generations; i++) {
+ GC_coll_times[i] = 0.0;
}
}
+#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
-StgDouble
+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(((StgDouble)(t.tms_utime))/TicksPerSecond);
+ 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)
{
InitUserTime = usertime();
- InitElapsedTime = elapsedtime();
+ InitElapsedStamp = elapsedtime();
+ InitElapsedTime = InitElapsedStamp - ElapsedTimeStart;
if (InitElapsedTime < 0.0) {
InitElapsedTime = 0.0;
}
}
/* -----------------------------------------------------------------------------
+ stat_startExit and stat_endExit
+
+ These two measure the time taken in shutdownHaskell().
+ -------------------------------------------------------------------------- */
+
+void
+stat_startExit(void)
+{
+ MutElapsedStamp = elapsedtime();
+ MutElapsedTime = MutElapsedStamp - GCe_tot_time - InitElapsedStamp;
+ if (MutElapsedTime < 0) { MutElapsedTime = 0; } /* sometimes -0.00 */
+
+ /* for SMP, we don't know the mutator time yet, we have to inspect
+ * all the running threads to find out, and they haven't stopped
+ * yet. So we just timestamp MutUserTime at this point so we can
+ * calculate the EXIT time. The real MutUserTime is calculated
+ * in stat_exit below.
+ */
+#ifdef SMP
+ MutUserTime = usertime();
+#else
+ MutUserTime = usertime() - GC_tot_time - InitUserTime;
+ if (MutUserTime < 0) { MutUserTime = 0; }
+#endif
+}
+
+void
+stat_endExit(void)
+{
+#ifdef SMP
+ ExitUserTime = usertime() - MutUserTime;
+#else
+ ExitUserTime = usertime() - MutUserTime - GC_tot_time - InitUserTime;
+#endif
+ ExitElapsedTime = elapsedtime() - MutElapsedStamp;
+ if (ExitUserTime < 0.0) {
+ ExitUserTime = 0.0;
+ }
+ if (ExitElapsedTime < 0.0) {
+ ExitElapsedTime = 0.0;
+ }
+}
+
+/* -----------------------------------------------------------------------------
Called at the beginning of each GC
-------------------------------------------------------------------------- */
static nat rub_bell = 0;
+/* initialise global variables needed during GC
+ *
+ * * GC_start_time is read in mut_user_time_during_GC(), which in turn is
+ * needed if either PROFILING or DEBUGing is enabled
+ */
void
stat_startGC(void)
{
}
}
+#if defined(PROFILING) || defined(DEBUG)
+ GC_start_time = usertime(); /* needed in mut_user_time_during_GC() */
+#endif
+
if (sf != NULL) {
- GC_start_time = usertime();
+#if !defined(PROFILING) && !defined(DEBUG)
+ GC_start_time = usertime();
+#endif
GCe_start_time = elapsedtime();
if (RtsFlags.GcFlags.giveStats) {
GC_start_faults = pagefaults();
-------------------------------------------------------------------------- */
void
-stat_endGC(lnat alloc, lnat collect, lnat live, char *comment)
+stat_endGC(lnat alloc, lnat collect, lnat live, lnat copied, lnat gen)
{
FILE *sf = RtsFlags.GcFlags.statsFile;
if (sf != NULL) {
- StgDouble time = usertime();
- StgDouble etime = elapsedtime();
+ double time = usertime();
+ double etime = elapsedtime();
+ double gc_time = time - GC_start_time;
+ double gc_etime = etime - GCe_start_time;
- if (RtsFlags.GcFlags.giveStats) {
+ if (RtsFlags.GcFlags.giveStats >= VERBOSE_GC_STATS) {
nat faults = pagefaults();
- fprintf(sf, "%8ld %7ld %7ld %5.1f%%",
- alloc*sizeof(W_), collect*sizeof(W_), live*sizeof(W_), collect == 0 ? 0.0 : (live / (StgDouble) collect * 100));
- fprintf(sf, " %5.2f %5.2f %7.2f %7.2f %4ld %4ld %s\n",
- (time-GC_start_time),
- (etime-GCe_start_time),
+ fprintf(sf, "%9ld %9ld %9ld",
+ alloc*sizeof(W_), collect*sizeof(W_), live*sizeof(W_));
+ fprintf(sf, " %5.2f %5.2f %7.2f %7.2f %4ld %4ld (Gen: %2ld)\n",
+ gc_time,
+ gc_etime,
time,
etime,
faults - GC_start_faults,
GC_start_faults - GC_end_faults,
- comment);
+ gen);
GC_end_faults = faults;
fflush(sf);
}
- GC_maj_no++;
- GC_tot_alloc += (ullong) alloc;
- GC_tot_time += time-GC_start_time;
- GCe_tot_time += etime-GCe_start_time;
+ GC_coll_times[gen] += gc_time;
+
+ GC_tot_copied += (ullong) copied;
+ GC_tot_alloc += (ullong) alloc;
+ GC_tot_time += gc_time;
+ GCe_tot_time += gc_etime;
+
+#ifdef SMP
+ {
+ nat i;
+ pthread_t me = pthread_self();
+
+ for (i = 0; i < RtsFlags.ConcFlags.nNodes; i++) {
+ if (me == task_ids[i].id) {
+ task_ids[i].gc_time += gc_time;
+ task_ids[i].gc_etime += gc_etime;
+ break;
+ }
+ }
+ }
+#endif
+
+ if (gen == RtsFlags.GcFlags.generations-1) { /* major GC? */
+ if (live > MaxResidency) {
+ MaxResidency = live;
+ }
+ ResidencySamples++;
+ }
}
if (rub_bell) {
}
/* -----------------------------------------------------------------------------
+ stat_workerStop
+
+ Called under SMP when a worker thread finishes. We drop the timing
+ stats for this thread into the task_ids struct for that thread.
+ -------------------------------------------------------------------------- */
+
+#ifdef SMP
+void
+stat_workerStop(void)
+{
+ nat i;
+ pthread_t me = pthread_self();
+
+ for (i = 0; i < RtsFlags.ConcFlags.nNodes; i++) {
+ if (task_ids[i].id == me) {
+ task_ids[i].mut_time = usertime() - task_ids[i].gc_time;
+ task_ids[i].mut_etime = elapsedtime()
+ - GCe_tot_time
+ - task_ids[i].elapsedtimestart;
+ if (task_ids[i].mut_time < 0.0) { task_ids[i].mut_time = 0.0; }
+ if (task_ids[i].mut_etime < 0.0) { task_ids[i].mut_etime = 0.0; }
+ }
+ }
+}
+#endif
+
+/* -----------------------------------------------------------------------------
Called at the end of execution
NOTE: number of allocations is not entirely accurate: it doesn't
if (sf != NULL){
char temp[BIG_STRING_LEN];
- StgDouble time = usertime();
- StgDouble etime = elapsedtime();
- StgDouble MutTime, MutElapsedTime;
+ double time = usertime();
+ double etime = elapsedtime() - ElapsedTimeStart;
/* avoid divide by zero if time is measured as 0.00 seconds -- SDM */
if (time == 0.0) time = 0.0001;
if (etime == 0.0) etime = 0.0001;
-
- if (RtsFlags.GcFlags.giveStats) {
- fprintf(sf, "%8d\n\n", alloc*sizeof(W_));
+ if (RtsFlags.GcFlags.giveStats >= VERBOSE_GC_STATS) {
+ fprintf(sf, "%9ld %9.9s %9.9s", (lnat)alloc*sizeof(W_), "", "");
+ fprintf(sf, " %5.2f %5.2f\n\n", 0.0, 0.0);
}
- else {
- fprintf(sf, "%8ld %7.7s %6.6s %7.7s %6.6s",
- (GC_alloc_since_maj + alloc)*sizeof(W_), "", "", "", "");
- fprintf(sf, " %3ld %5.2f %5.2f\n\n",
- GC_min_since_maj, GC_min_time, GCe_min_time);
- }
- GC_min_no += GC_min_since_maj;
- GC_tot_time += GC_min_time;
- GCe_tot_time += GCe_min_time;
- GC_tot_alloc += GC_alloc_since_maj + alloc;
+ GC_tot_alloc += alloc;
+
ullong_format_string(GC_tot_alloc*sizeof(W_), temp, rtsTrue/*commas*/);
fprintf(sf, "%11s bytes allocated in the heap\n", temp);
+
+ ullong_format_string(GC_tot_copied*sizeof(W_), temp, rtsTrue/*commas*/);
+ fprintf(sf, "%11s bytes copied during GC\n", temp);
+
if ( ResidencySamples > 0 ) {
ullong_format_string(MaxResidency*sizeof(W_), temp, rtsTrue/*commas*/);
- fprintf(sf, "%11s bytes maximum residency (%.1f%%, %ld sample(s))\n",
+ fprintf(sf, "%11s bytes maximum residency (%ld sample(s))\n",
temp,
- MaxResidency / (StgDouble) RtsFlags.GcFlags.maxHeapSize * 100,
ResidencySamples);
}
- fprintf(sf, "%11ld garbage collections performed (%ld major, %ld minor)\n\n",
- GC_maj_no + GC_min_no, GC_maj_no, GC_min_no);
-
- MutTime = time - GC_tot_time - InitUserTime;
- if (MutTime < 0) { MutTime = 0; }
- MutElapsedTime = etime - GCe_tot_time - InitElapsedTime;
- if (MutElapsedTime < 0) { MutElapsedTime = 0; } /* sometimes -0.00 */
+ fprintf(sf,"\n");
+
+ { /* Count garbage collections */
+ nat g;
+ for (g = 0; g < RtsFlags.GcFlags.generations; g++) {
+ fprintf(sf, "%11d collections in generation %d (%6.2fs)\n",
+ generations[g].collections, g, GC_coll_times[g]);
+ }
+ }
+ fprintf(sf,"\n%11ld Mb total memory in use\n\n",
+ mblocks_allocated * MBLOCK_SIZE / (1024 * 1024));
+
+ /* For SMP, we have to get the user time from each thread
+ * and try to work out the total time.
+ */
+#ifdef SMP
+ {
+ nat i;
+ MutUserTime = 0.0;
+ for (i = 0; i < RtsFlags.ConcFlags.nNodes; i++) {
+ MutUserTime += task_ids[i].mut_time;
+ fprintf(sf, " Task %2d: MUT time: %6.2fs (%6.2fs elapsed)\n"
+ " GC time: %6.2fs (%6.2fs elapsed)\n\n",
+ i,
+ task_ids[i].mut_time, task_ids[i].mut_etime,
+ task_ids[i].gc_time, task_ids[i].gc_etime);
+ }
+ }
+ time = MutUserTime + GC_tot_time + InitUserTime + ExitUserTime;
+ if (MutUserTime < 0) { MutUserTime = 0; }
+#endif
fprintf(sf, " INIT time %6.2fs (%6.2fs elapsed)\n",
InitUserTime, InitElapsedTime);
fprintf(sf, " MUT time %6.2fs (%6.2fs elapsed)\n",
- MutTime, MutElapsedTime);
+ MutUserTime, MutElapsedTime);
fprintf(sf, " GC time %6.2fs (%6.2fs elapsed)\n",
GC_tot_time, GCe_tot_time);
+ fprintf(sf, " EXIT time %6.2fs (%6.2fs elapsed)\n",
+ ExitUserTime, ExitElapsedTime);
fprintf(sf, " Total time %6.2fs (%6.2fs elapsed)\n\n",
time, etime);
fclose(sf);
}
}
+
+/* -----------------------------------------------------------------------------
+ stat_describe_gens
+
+ Produce some detailed info on the state of the generational GC.
+ -------------------------------------------------------------------------- */
+void
+stat_describe_gens(void)
+{
+ nat g, s, mut, mut_once, lge, live;
+ StgMutClosure *m;
+ bdescr *bd;
+ step *step;
+
+ fprintf(stderr, " Gen Steps Max Mutable Mut-Once Step Blocks Live Large\n Blocks Closures Closures Objects\n");
+
+ for (g = 0; g < RtsFlags.GcFlags.generations; g++) {
+ for (m = generations[g].mut_list, mut = 0; m != END_MUT_LIST;
+ m = m->mut_link)
+ mut++;
+ for (m = generations[g].mut_once_list, mut_once = 0; m != END_MUT_LIST;
+ m = m->mut_link)
+ mut_once++;
+ fprintf(stderr, "%8d %8d %8d %9d %9d", g, generations[g].n_steps,
+ generations[g].max_blocks, mut, mut_once);
+
+ for (s = 0; s < generations[g].n_steps; s++) {
+ step = &generations[g].steps[s];
+ for (bd = step->large_objects, lge = 0; bd; bd = bd->link)
+ lge++;
+ live = 0;
+ if (RtsFlags.GcFlags.generations == 1) {
+ bd = step->to_space;
+ } else {
+ bd = step->blocks;
+ }
+ for (; bd; bd = bd->link) {
+ live += (bd->free - bd->start) * sizeof(W_);
+ }
+ if (s != 0) {
+ fprintf(stderr,"%46s","");
+ }
+ fprintf(stderr,"%6d %8d %8d %8d\n", s, step->n_blocks,
+ live, lge);
+ }
+ }
+ fprintf(stderr,"\n");
+}
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