mirror of https://github.com/nirenjan/libx52.git
84 lines
2.2 KiB
C
84 lines
2.2 KiB
C
/*
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* Pinelog lightweight logging library - test harness
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*
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* Copyright (C) 2021 Nirenjan Krishnan (nirenjan@nirenjan.org)
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*
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* SPDX-License-Identifier: MIT
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*/
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#define pinelog_exit(_)
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#include "pinelog.h"
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#include <stdio.h>
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#include <stdint.h>
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#include <inttypes.h>
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#include <time.h>
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#define BENCH_COUNT 100000
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static void print_time_difference(const char *type, struct timespec *ts)
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{
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struct timespec ret;
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uint64_t timeper;
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uint64_t tp_usec;
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uint64_t tp_nsec;
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// ts is a pointer to a 2 element array, second is always later
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ret.tv_sec = ts[1].tv_sec - ts[0].tv_sec;
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ret.tv_nsec = ts[1].tv_nsec - ts[0].tv_nsec;
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if (ts[0].tv_nsec > ts[1].tv_nsec) {
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ret.tv_nsec += 1000000000;
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ret.tv_sec--;
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}
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timeper = (ret.tv_sec * 1000000000 + ret.tv_nsec) / BENCH_COUNT;
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tp_usec = timeper / 1000;
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tp_nsec = timeper % 1000;
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printf("# %s %"PRIu64".%03"PRIu64"\u03BCs/log (Total %lu.%09lds)\n",
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type, tp_usec, tp_nsec, ret.tv_sec, ret.tv_nsec);
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}
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int main(int argc, char **argv)
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{
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struct timespec ts_wall[2];
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struct timespec ts_cpu[2];
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int i;
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/* Set up defaults */
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pinelog_set_level(PINELOG_LVL_ERROR);
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pinelog_set_output_file("/dev/null");
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printf("# Timing logging for %u iterations\n", BENCH_COUNT);
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if (clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &ts_cpu[0]) < 0) {
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perror("clock_gettime cputime 0");
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return 1;
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}
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if (clock_gettime(CLOCK_MONOTONIC, &ts_wall[0]) < 0) {
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perror("clock_gettime monotonic 0");
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return 1;
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}
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for (i = 0; i < BENCH_COUNT; i++) {
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PINELOG_ERROR("Testing error log #%u of %u", i, BENCH_COUNT);
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}
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clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &ts_cpu[1]);
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clock_gettime(CLOCK_MONOTONIC, &ts_wall[1]);
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// Add a test plan and to avoid the TAP harness from flagging this as a
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// failed test.
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puts("1..1");
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printf("ok 1 Benchmark pinelog %stimestamp, %slevel, %sbacktrace\n",
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PINELOG_SHOW_DATE ? "": "no ",
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PINELOG_SHOW_LEVEL ? "": "no ",
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PINELOG_SHOW_BACKTRACE ? "": "no ");
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print_time_difference("cpu time", ts_cpu);
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print_time_difference("wall time", ts_wall);
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return 0;
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}
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