1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #pragma once 3 #include <stdlib.h> 4 #include <stdbool.h> 5 #include <linux/err.h> 6 #include <errno.h> 7 #include <unistd.h> 8 #include <bpf/bpf.h> 9 #include <bpf/libbpf.h> 10 #include <math.h> 11 #include <time.h> 12 #include <sys/syscall.h> 13 #include <limits.h> 14 15 struct cpu_set { 16 bool *cpus; 17 int cpus_len; 18 int next_cpu; 19 }; 20 21 struct env { 22 char *bench_name; 23 int duration_sec; 24 int warmup_sec; 25 bool verbose; 26 bool list; 27 bool affinity; 28 bool quiet; 29 int consumer_cnt; 30 int producer_cnt; 31 int nr_cpus; 32 struct cpu_set prod_cpus; 33 struct cpu_set cons_cpus; 34 }; 35 36 struct basic_stats { 37 double mean; 38 double stddev; 39 }; 40 41 struct bench_res { 42 long hits; 43 long drops; 44 long false_hits; 45 long important_hits; 46 unsigned long gp_ns; 47 unsigned long gp_ct; 48 unsigned int stime; 49 }; 50 51 struct bench { 52 const char *name; 53 const struct argp *argp; 54 void (*validate)(void); 55 void (*setup)(void); 56 void *(*producer_thread)(void *ctx); 57 void *(*consumer_thread)(void *ctx); 58 void (*measure)(struct bench_res* res); 59 void (*report_progress)(int iter, struct bench_res* res, long delta_ns); 60 void (*report_final)(struct bench_res res[], int res_cnt); 61 }; 62 63 struct counter { 64 long value; 65 } __attribute__((aligned(128))); 66 67 extern struct env env; 68 extern const struct bench *bench; 69 70 void setup_libbpf(void); 71 void hits_drops_report_progress(int iter, struct bench_res *res, long delta_ns); 72 void hits_drops_report_final(struct bench_res res[], int res_cnt); 73 void false_hits_report_progress(int iter, struct bench_res *res, long delta_ns); 74 void false_hits_report_final(struct bench_res res[], int res_cnt); 75 void ops_report_progress(int iter, struct bench_res *res, long delta_ns); 76 void ops_report_final(struct bench_res res[], int res_cnt); 77 void local_storage_report_progress(int iter, struct bench_res *res, 78 long delta_ns); 79 void local_storage_report_final(struct bench_res res[], int res_cnt); 80 void grace_period_latency_basic_stats(struct bench_res res[], int res_cnt, 81 struct basic_stats *gp_stat); 82 void grace_period_ticks_basic_stats(struct bench_res res[], int res_cnt, 83 struct basic_stats *gp_stat); 84 85 static inline void atomic_inc(long *value) 86 { 87 (void)__atomic_add_fetch(value, 1, __ATOMIC_RELAXED); 88 } 89 90 static inline void atomic_add(long *value, long n) 91 { 92 (void)__atomic_add_fetch(value, n, __ATOMIC_RELAXED); 93 } 94 95 static inline long atomic_swap(long *value, long n) 96 { 97 return __atomic_exchange_n(value, n, __ATOMIC_RELAXED); 98 } 99