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 14 struct cpu_set { 15 bool *cpus; 16 int cpus_len; 17 int next_cpu; 18 }; 19 20 struct env { 21 char *bench_name; 22 int duration_sec; 23 int warmup_sec; 24 bool verbose; 25 bool list; 26 bool affinity; 27 int consumer_cnt; 28 int producer_cnt; 29 struct cpu_set prod_cpus; 30 struct cpu_set cons_cpus; 31 }; 32 33 struct basic_stats { 34 double mean; 35 double stddev; 36 }; 37 38 struct bench_res { 39 long hits; 40 long drops; 41 long false_hits; 42 long important_hits; 43 unsigned long gp_ns; 44 unsigned long gp_ct; 45 unsigned int stime; 46 }; 47 48 struct bench { 49 const char *name; 50 void (*validate)(void); 51 void (*setup)(void); 52 void *(*producer_thread)(void *ctx); 53 void *(*consumer_thread)(void *ctx); 54 void (*measure)(struct bench_res* res); 55 void (*report_progress)(int iter, struct bench_res* res, long delta_ns); 56 void (*report_final)(struct bench_res res[], int res_cnt); 57 }; 58 59 struct counter { 60 long value; 61 } __attribute__((aligned(128))); 62 63 extern struct env env; 64 extern const struct bench *bench; 65 66 void setup_libbpf(void); 67 void hits_drops_report_progress(int iter, struct bench_res *res, long delta_ns); 68 void hits_drops_report_final(struct bench_res res[], int res_cnt); 69 void false_hits_report_progress(int iter, struct bench_res *res, long delta_ns); 70 void false_hits_report_final(struct bench_res res[], int res_cnt); 71 void ops_report_progress(int iter, struct bench_res *res, long delta_ns); 72 void ops_report_final(struct bench_res res[], int res_cnt); 73 void local_storage_report_progress(int iter, struct bench_res *res, 74 long delta_ns); 75 void local_storage_report_final(struct bench_res res[], int res_cnt); 76 void grace_period_latency_basic_stats(struct bench_res res[], int res_cnt, 77 struct basic_stats *gp_stat); 78 void grace_period_ticks_basic_stats(struct bench_res res[], int res_cnt, 79 struct basic_stats *gp_stat); 80 81 static inline __u64 get_time_ns(void) 82 { 83 struct timespec t; 84 85 clock_gettime(CLOCK_MONOTONIC, &t); 86 87 return (u64)t.tv_sec * 1000000000 + t.tv_nsec; 88 } 89 90 static inline void atomic_inc(long *value) 91 { 92 (void)__atomic_add_fetch(value, 1, __ATOMIC_RELAXED); 93 } 94 95 static inline void atomic_add(long *value, long n) 96 { 97 (void)__atomic_add_fetch(value, n, __ATOMIC_RELAXED); 98 } 99 100 static inline long atomic_swap(long *value, long n) 101 { 102 return __atomic_exchange_n(value, n, __ATOMIC_RELAXED); 103 } 104