61 lines
2.6 KiB
C
61 lines
2.6 KiB
C
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#if 0
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/*─────────────────────────────────────────────────────────────────╗
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│ To the extent possible under law, Justine Tunney has waived │
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│ all copyright and related or neighboring rights to this file, │
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│ as it is written in the following disclaimers: │
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│ • http://unlicense.org/ │
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│ • http://creativecommons.org/publicdomain/zero/1.0/ │
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╚─────────────────────────────────────────────────────────────────*/
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#endif
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#include "libc/calls/calls.h"
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#include "libc/calls/hefty/spawn.h"
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#include "libc/calls/struct/rusage.h"
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#include "libc/log/check.h"
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#include "libc/log/log.h"
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#include "libc/math.h"
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#include "libc/runtime/runtime.h"
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#include "libc/stdio/stdio.h"
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#include "libc/str/str.h"
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#include "libc/sysv/consts/fileno.h"
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#include "libc/time/time.h"
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void Show(const char *name, long measurement, const char *unit) {
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fprintf(stderr, "%-*s%,*d %s\n", 32, name, 32, measurement, unit);
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}
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long TvToUs(struct timeval tv) {
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return 1000000l * tv.tv_usec + tv.tv_sec;
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}
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int main(int argc, char *argv[]) {
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const char *exe;
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int pid, wstatus;
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long double ts1, ts2;
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struct rusage rusage;
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memset(&rusage, -1, sizeof(rusage));
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CHECK_GT(argc, 1);
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CHECK_NOTNULL((exe = commandv(argv[1])));
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ts1 = nowl();
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CHECK_NE(-1, (pid = spawnve(0, NULL, exe, &argv[1], environ)));
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CHECK_NE(-1, wait4(pid, &wstatus, 0, &rusage));
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ts2 = nowl();
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Show("wall time", lroundl((ts2 - ts1) * 1e9l), "ns");
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Show("user time", TvToUs(rusage.ru_utime), "µs");
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Show("sys time", TvToUs(rusage.ru_stime), "µs");
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Show("maximum resident set size", rusage.ru_maxrss, "");
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Show("integral shared memory size", rusage.ru_ixrss, "");
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Show("integral unshared data size", rusage.ru_idrss, "");
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Show("integral unshared stack size", rusage.ru_isrss, "");
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Show("minor page faults", rusage.ru_minflt, "");
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Show("major page faults", rusage.ru_majflt, "");
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Show("swaps", rusage.ru_nswap, "");
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Show("block input ops", rusage.ru_inblock, "");
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Show("block output ops", rusage.ru_oublock, "");
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Show("ipc messages sent", rusage.ru_msgsnd, "");
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Show("ipc messages received", rusage.ru_msgrcv, "");
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Show("signals received", rusage.ru_nsignals, "");
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Show("voluntary context switches", rusage.ru_nvcsw, "");
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Show("involuntary context switches", rusage.ru_nivcsw, "");
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return WEXITSTATUS(wstatus);
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}
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