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1// SPDX-License-Identifier: GPL-2.02/* Copyright (c) 2020 Facebook */3#include "bench.h"4 5/* COUNT-GLOBAL benchmark */6 7static struct count_global_ctx {8 struct counter hits;9} count_global_ctx;10 11static void *count_global_producer(void *input)12{13 struct count_global_ctx *ctx = &count_global_ctx;14 15 while (true) {16 atomic_inc(&ctx->hits.value);17 }18 return NULL;19}20 21static void count_global_measure(struct bench_res *res)22{23 struct count_global_ctx *ctx = &count_global_ctx;24 25 res->hits = atomic_swap(&ctx->hits.value, 0);26}27 28/* COUNT-local benchmark */29 30static struct count_local_ctx {31 struct counter *hits;32} count_local_ctx;33 34static void count_local_setup(void)35{36 struct count_local_ctx *ctx = &count_local_ctx;37 38 ctx->hits = calloc(env.producer_cnt, sizeof(*ctx->hits));39 if (!ctx->hits)40 exit(1);41}42 43static void *count_local_producer(void *input)44{45 struct count_local_ctx *ctx = &count_local_ctx;46 int idx = (long)input;47 48 while (true) {49 atomic_inc(&ctx->hits[idx].value);50 }51 return NULL;52}53 54static void count_local_measure(struct bench_res *res)55{56 struct count_local_ctx *ctx = &count_local_ctx;57 int i;58 59 for (i = 0; i < env.producer_cnt; i++) {60 res->hits += atomic_swap(&ctx->hits[i].value, 0);61 }62}63 64const struct bench bench_count_global = {65 .name = "count-global",66 .producer_thread = count_global_producer,67 .measure = count_global_measure,68 .report_progress = hits_drops_report_progress,69 .report_final = hits_drops_report_final,70};71 72const struct bench bench_count_local = {73 .name = "count-local",74 .setup = count_local_setup,75 .producer_thread = count_local_producer,76 .measure = count_local_measure,77 .report_progress = hits_drops_report_progress,78 .report_final = hits_drops_report_final,79};80