hc
2023-12-11 d2ccde1c8e90d38cee87a1b0309ad2827f3fd30d
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// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2020 Facebook */
#include "bench.h"
 
/* COUNT-GLOBAL benchmark */
 
static struct count_global_ctx {
   struct counter hits;
} count_global_ctx;
 
static void *count_global_producer(void *input)
{
   struct count_global_ctx *ctx = &count_global_ctx;
 
   while (true) {
       atomic_inc(&ctx->hits.value);
   }
   return NULL;
}
 
static void *count_global_consumer(void *input)
{
   return NULL;
}
 
static void count_global_measure(struct bench_res *res)
{
   struct count_global_ctx *ctx = &count_global_ctx;
 
   res->hits = atomic_swap(&ctx->hits.value, 0);
}
 
/* COUNT-local benchmark */
 
static struct count_local_ctx {
   struct counter *hits;
} count_local_ctx;
 
static void count_local_setup()
{
   struct count_local_ctx *ctx = &count_local_ctx;
 
   ctx->hits = calloc(env.consumer_cnt, sizeof(*ctx->hits));
   if (!ctx->hits)
       exit(1);
}
 
static void *count_local_producer(void *input)
{
   struct count_local_ctx *ctx = &count_local_ctx;
   int idx = (long)input;
 
   while (true) {
       atomic_inc(&ctx->hits[idx].value);
   }
   return NULL;
}
 
static void *count_local_consumer(void *input)
{
   return NULL;
}
 
static void count_local_measure(struct bench_res *res)
{
   struct count_local_ctx *ctx = &count_local_ctx;
   int i;
 
   for (i = 0; i < env.producer_cnt; i++) {
       res->hits += atomic_swap(&ctx->hits[i].value, 0);
   }
}
 
const struct bench bench_count_global = {
   .name = "count-global",
   .producer_thread = count_global_producer,
   .consumer_thread = count_global_consumer,
   .measure = count_global_measure,
   .report_progress = hits_drops_report_progress,
   .report_final = hits_drops_report_final,
};
 
const struct bench bench_count_local = {
   .name = "count-local",
   .setup = count_local_setup,
   .producer_thread = count_local_producer,
   .consumer_thread = count_local_consumer,
   .measure = count_local_measure,
   .report_progress = hits_drops_report_progress,
   .report_final = hits_drops_report_final,
};