dbtestx.c

/*
 * Copyright (c) 2016--2021  Wu, Xingbo <wuxb45@gmail.com>
 *
 * All rights reserved. No warranty, explicit or implicit, provided.
 */
#define _GNU_SOURCE

#include "lib.h"
#include "kv.h"

struct priv {
  void * ref;
  u32 cpro;
  u32 cget;
  u32 cset;
  u32 klen;
  u32 vlen;
  struct kv * out;
  struct kv * tmp;
};

#define XSA ((0))
#define XSS ((1))
#define XDA ((2))
#define XDS ((3))
#define XGA ((4))
#define XGS ((5))
#define XPA ((6))
#define XPS ((7))

  static bool
kvmap_analyze(void * const passdata[2], const u64 dt, const struct vctr * const va, struct damp * const d, char * const out)
{
  (void)passdata;
  size_t v[8];
  for (u64 i = 0; i < 8; i++)
    v[i] = vctr_get(va, i);

  const u64 nrop = v[XSA] + v[XDA] + v[XGA] + v[XPA];
  const double mops = ((double)nrop) * 1e3 / ((double)dt);
  const bool done = damp_add_test(d, mops);
  const char * const pat = " set %zu %zu del %zu %zu get %zu %zu pro %zu %zu mops %.4lf avg %.4lf ravg %.4lf\n";
  sprintf(out, pat, v[XSA], v[XSS], v[XDA], v[XDS], v[XGA], v[XGS], v[XPA], v[XPS], mops, damp_avg(d), damp_ravg(d));
  return done;
}

  static void
kvmap_batch(const struct forker_worker_info * const info,
    const struct priv * const priv, const u64 nr)
{
  const struct kvmap_api * const api = (typeof(api))info->passdata[0];
  void * const ref = priv->ref;
  struct vctr * const v = info->vctr;
  struct rgen * const gen = info->gen;
  rgen_next_func next = info->rgen_next;
  rgen_next_func next_write = info->rgen_next_write;
  struct kv * const tmp = priv->tmp;

  for (u64 i = 0; i < nr; i++) {
    const u32 p = random_u64() & 0xffffu;
    if (p < priv->cpro) { // PROBE
      kv_refill_hex64_klen(tmp, next(gen), priv->klen, NULL, 0);
      vctr_add1(v, XPA);
      if (kvmap_kv_probe(api, ref, tmp))
        vctr_add1(v, XPS);

    } else if (p < priv->cget) { // GET
      kv_refill_hex64_klen(tmp, next(gen), priv->klen, NULL, 0);
      vctr_add1(v, XGA);
      if (kvmap_kv_get(api, ref, tmp, priv->out))
        vctr_add1(v, XGS);

    } else if (p < priv->cset) { // SET
      kv_refill_hex64_klen(tmp, next_write(gen), priv->klen, NULL, 0);
      vctr_add1(v, XSA);
      tmp->vlen = priv->vlen;
      if (kvmap_kv_put(api, ref, tmp))
        vctr_add1(v, XSS);

    } else { // DELETE
      kv_refill_hex64_klen(tmp, next_write(gen), priv->klen, NULL, 0);
      vctr_add1(v, XDA);
      if (kvmap_kv_del(api, ref, tmp))
        vctr_add1(v, XDS);
    }
  }
}

  static void *
kvmap_worker(void * const ptr)
{
  struct forker_worker_info * const info = (typeof(info))ptr;
  srandom_u64(info->seed);
  const struct kvmap_api * const api = (typeof(api))info->passdata[0];

  struct priv p;
  const u32 pset = a2u32(info->argv[0]);
  const u32 pdel = a2u32(info->argv[1]);
  const u32 pget = a2u32(info->argv[2]);
  const u32 ppro = 100 - pset - pdel - pget;
  // scaled to 65536
  p.cpro = ppro * 65536 / 100;
  p.cget = (ppro + pget) * 65536 / 100;
  p.cset = (ppro + pget + pset) * 65536 / 100;

  p.klen = a2u32(info->argv[3]);
  p.vlen = a2u32(info->argv[4]);
  p.ref = kvmap_ref(api, info->passdata[1]);

  const u64 outlen = sizeof(struct kv) + 16 + p.klen + p.vlen + 4096;
  p.tmp = yalloc(outlen);
  memset(p.tmp, 0, outlen);
  p.out = yalloc(outlen);
  debug_assert(p.out);

  if (info->end_type == FORKER_END_TIME) {
    do {
      kvmap_batch(info, &p, 1lu << 14);
    } while (time_nsec() < info->end_magic);
  } else if (info->end_type == FORKER_END_COUNT) {
    kvmap_batch(info, &p, info->end_magic);
  }
  kvmap_unref(api, p.ref);
  free(p.tmp);
  free(p.out);
  return NULL;
}

#define NARGS ((5))
  static void
maptest_help_message(void)
{
  fprintf(stderr, "%s Usage: {api ... {rgen ... {pass ...}}}\n", __func__);
  kvmap_api_helper_message();
  forker_passes_message();
  fprintf(stderr, "%s dbtestx wargs[%d]: <pset> <pdel> <pget> <klen> <vlen>\n", __func__, NARGS);
}

  static int
test_kvmap(const int argc, char ** const argv)
{
  const struct kvmap_api * api = NULL;
  void * map = NULL;
  const int n1 = kvmap_api_helper(argc, argv, NULL, &api, &map);
  if (n1 < 0)
    return n1;

  char *pref[64] = {};
  for (int i = 0; i < n1; i++) {
    pref[i] = argv[i];
  }
  pref[n1] = NULL;

  struct pass_info pi = {};
  pi.passdata[0] = (void *)api;
  pi.passdata[1] = map;
  pi.vctr_size = 8;
  pi.wf = kvmap_worker;
  pi.af = kvmap_analyze;
  const int n2 = forker_passes(argc - n1, argv + n1, pref, &pi, NARGS);

  if (api->fprint)
    api->fprint(map, stderr);

  api->destroy(map);
  if (n2 < 0) {
    return n2;
  } else {
    return n1 + n2;
  }
}

  int
main(int argc, char ** argv)
{
  if (argc < 3) {
    maptest_help_message();
    exit(0);
  }

  const bool r = forker_main(argc - 1, argv + 1, test_kvmap);
  if (r == false)
    maptest_help_message();
  return 0;
}