91 lines
1.9 KiB
C
91 lines
1.9 KiB
C
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#include "resources.h"
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#include <sys/time.h>
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double
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kissat_wall_clock_time (void)
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{
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struct timeval tv;
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if (gettimeofday (&tv, 0))
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return 0;
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return 1e-6 * tv.tv_usec + tv.tv_sec;
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}
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#ifndef QUIET
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#include "internal.h"
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#include "statistics.h"
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#include "utilities.h"
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#include <stdio.h>
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#include <inttypes.h>
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#include <sys/resource.h>
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#include <sys/types.h>
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#include <unistd.h>
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double
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kissat_process_time (void)
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{
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struct rusage u;
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double res;
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if (getrusage (RUSAGE_SELF, &u))
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return 0;
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res = u.ru_utime.tv_sec + 1e-6 * u.ru_utime.tv_usec;
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res += u.ru_stime.tv_sec + 1e-6 * u.ru_stime.tv_usec;
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return res;
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}
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uint64_t
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kissat_maximum_resident_set_size (void)
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{
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struct rusage u;
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if (getrusage (RUSAGE_SELF, &u))
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return 0;
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return ((uint64_t) u.ru_maxrss) << 10;
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}
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uint64_t
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kissat_current_resident_set_size (void)
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{
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char path[48];
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sprintf (path, "/proc/%" PRIu64 "/statm", (uint64_t) getpid ());
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FILE *file = fopen (path, "r");
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if (!file)
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return 0;
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uint64_t dummy, rss;
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int scanned = fscanf (file, "%" PRIu64 " %" PRIu64 "", &dummy, &rss);
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fclose (file);
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return scanned == 2 ? rss * sysconf (_SC_PAGESIZE) : 0;
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}
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void
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kissat_print_resources (kissat * solver)
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{
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uint64_t rss = kissat_maximum_resident_set_size ();
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double t = kissat_time (solver);
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printf ("c "
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"%-" SFW1 "s "
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"%" SFW2 PRIu64 " "
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"%-" SFW3 "s "
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"%" SFW4 ".0f "
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"MB\n",
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"maximum-resident-set-size:",
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rss, "bytes", rss / (double) (1 << 20));
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#ifndef NMETRICS
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statistics *statistics = &solver->statistics;
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uint64_t max_allocated = statistics->allocated_max + sizeof (kissat);
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printf ("c "
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"%-" SFW1 "s "
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"%" SFW2 PRIu64 " "
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"%-" SFW3 "s "
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"%" SFW4 ".0f "
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"%%\n",
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"max-allocated:",
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max_allocated, "bytes", kissat_percent (max_allocated, rss));
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#endif
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printf ("c process-time: %30s %18.2f seconds\n", FORMAT_TIME (t), t);
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fflush (stdout);
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}
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#endif
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