From: Svetlana <lana0771711@gmail.com>
Date: Mon, 17 Aug 2020 11:31:54 +0000 (+0000)
Subject: remove distribution benchmark as full benchmark was created in google-interns-2020... 
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=8d2095fadd5e67e09d0298da474a7c8bfcc7ed23;p=thirdparty%2Fcollectd.git

remove distribution benchmark as full benchmark was created in google-interns-2020 branch
---

diff --git a/src/daemon/distribution_benchmark.c b/src/daemon/distribution_benchmark.c
deleted file mode 100644
index b48069d75..000000000
--- a/src/daemon/distribution_benchmark.c
+++ /dev/null
@@ -1,111 +0,0 @@
-#include <math.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <time.h>
-
-#include "distribution.h"
-
-const size_t NUM_UPDATES = 1e6;
-const size_t NUM_PERCENTILES = 1e6;
-const size_t MIXED = 1e6;
-
-distribution_t *build(size_t num_buckets) {
-  srand(5);
-  double custom[num_buckets - 1];
-  custom[0] = rand() % 100;
-  for (size_t i = 1; i < num_buckets - 1; i++) {
-    custom[i] = custom[i - 1] + rand() % 100 + 1;
-  }
-  distribution_t *dist = distribution_new_custom(num_buckets - 1, custom);
-  return dist;
-}
-
-double calculate_update_time(distribution_t *dist) {
-  double *updates = calloc(NUM_UPDATES, sizeof(*updates));
-  for (size_t i = 0; i < NUM_UPDATES; i++) {
-    updates[i] =
-        (rand() * RAND_MAX + rand()) % (distribution_num_buckets(dist) * 100);
-  }
-  struct timespec start, finish;
-  clock_gettime(CLOCK_MONOTONIC, &start);
-  for (size_t i = 0; i < NUM_UPDATES; i++) {
-    distribution_update(dist, updates[i]);
-  }
-  clock_gettime(CLOCK_MONOTONIC, &finish);
-  double update_dur = 1000.0 * (finish.tv_sec - start.tv_sec) +
-                      1e-6 * (finish.tv_nsec - start.tv_nsec);
-  double average = update_dur / NUM_UPDATES * 1000000.0;
-  free(updates);
-  return average;
-}
-
-double calculate_percentile_time(distribution_t *dist) {
-  double *percentiles = calloc(NUM_PERCENTILES, sizeof(*percentiles));
-  for (size_t i = 0; i < NUM_PERCENTILES; i++) {
-    percentiles[i] = 100.0 * rand() / RAND_MAX;
-  }
-  struct timespec start, finish;
-  clock_gettime(CLOCK_MONOTONIC, &start);
-  for (size_t i = 0; i < NUM_PERCENTILES; i++) {
-    distribution_percentile(dist, percentiles[i]);
-  }
-  clock_gettime(CLOCK_MONOTONIC, &finish);
-  double percentile_dur = 1000.0 * (finish.tv_sec - start.tv_sec) +
-                          1e-6 * (finish.tv_nsec - start.tv_nsec);
-  double average = percentile_dur / NUM_PERCENTILES * 1000000.0;
-  free(percentiles);
-  return average;
-}
-
-double mixed(size_t num_buckets) {
-  distribution_t *dist = build(num_buckets);
-  double *updates = calloc(MIXED / 10 * 9, sizeof(*updates));
-  double *percentiles = calloc(MIXED / 10, sizeof(*percentiles));
-  for (size_t i = 0; i < MIXED / 10 * 9; i++)
-    updates[i] = (rand() * RAND_MAX + rand()) % (num_buckets * 100);
-  for (size_t i = 0; i < MIXED / 10; i++)
-    percentiles[i] = 100.0 * rand() / RAND_MAX;
-
-  size_t uid = 0;
-  size_t pid = 0;
-  struct timespec start, finish;
-  clock_gettime(CLOCK_MONOTONIC, &start);
-  double val = 0;
-  for (size_t i = 0; i < MIXED; i++) {
-    if (i % 10 == 9) {
-      double d = distribution_percentile(dist, percentiles[pid++]);
-      if (d != INFINITY)
-        val += d;
-    } else
-      distribution_update(dist, updates[uid++]);
-  }
-  clock_gettime(CLOCK_MONOTONIC, &finish);
-  double dur = 1000.0 * (finish.tv_sec - start.tv_sec) +
-               1e-6 * (finish.tv_nsec - start.tv_nsec);
-  distribution_destroy(dist);
-  free(percentiles);
-  free(updates);
-  // printf("%f\n", val);
-  return dur;
-}
-
-int main() {
-  FILE *fout = fopen("benchmark_small.csv", "w");
-  fprintf(fout,
-          "Number of buckets,Average for update,Average for percentile,Total "
-          "for %lu mixed iterations\n",
-          MIXED);
-  for (size_t num_buckets = 50; num_buckets <= 5000; num_buckets += 50) {
-    distribution_t *dist = build(num_buckets);
-    fprintf(fout, "%lu,", num_buckets);
-    fprintf(fout, "%f,", calculate_update_time(dist));
-    fprintf(fout, "%f,", calculate_percentile_time(dist));
-    fprintf(fout, "%f\n", mixed(num_buckets));
-    // fprintf(fout, "%lu,%f,%f,%f\n", num_buckets, calculate_update_time(dist),
-    // calculate_percentile_time(dist), mixed(num_buckets));
-    distribution_destroy(dist);
-    printf("OK %lu\n", num_buckets);
-  }
-  fclose(fout);
-  return 0;
-}