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 bool quiet;
28 int consumer_cnt;
29 int producer_cnt;
30 int nr_cpus;
31 struct cpu_set prod_cpus;
32 struct cpu_set cons_cpus;
33 };
34
35 struct basic_stats {
36 double mean;
37 double stddev;
38 };
39
40 struct bench_res {
41 long hits;
42 long drops;
43 long false_hits;
44 long important_hits;
45 unsigned long gp_ns;
46 unsigned long gp_ct;
47 unsigned int stime;
48 };
49
50 struct bench {
51 const char *name;
52 const struct argp *argp;
53 void (*validate)(void);
54 void (*setup)(void);
55 void *(*producer_thread)(void *ctx);
56 void *(*consumer_thread)(void *ctx);
57 void (*measure)(struct bench_res* res);
58 void (*report_progress)(int iter, struct bench_res* res, long delta_ns);
59 void (*report_final)(struct bench_res res[], int res_cnt);
60 };
61
62 struct counter {
63 long value;
64 } __attribute__((aligned(128)));
65
66 extern struct env env;
67 extern const struct bench *bench;
68
69 void setup_libbpf(void);
70 void hits_drops_report_progress(int iter, struct bench_res *res, long delta_ns);
71 void hits_drops_report_final(struct bench_res res[], int res_cnt);
72 void false_hits_report_progress(int iter, struct bench_res *res, long delta_ns);
73 void false_hits_report_final(struct bench_res res[], int res_cnt);
74 void ops_report_progress(int iter, struct bench_res *res, long delta_ns);
75 void ops_report_final(struct bench_res res[], int res_cnt);
76 void local_storage_report_progress(int iter, struct bench_res *res,
77 long delta_ns);
78 void local_storage_report_final(struct bench_res res[], int res_cnt);
79 void grace_period_latency_basic_stats(struct bench_res res[], int res_cnt,
80 struct basic_stats *gp_stat);
81 void grace_period_ticks_basic_stats(struct bench_res res[], int res_cnt,
82 struct basic_stats *gp_stat);
83
atomic_inc(long * value)84 static inline void atomic_inc(long *value)
85 {
86 (void)__atomic_add_fetch(value, 1, __ATOMIC_RELAXED);
87 }
88
atomic_add(long * value,long n)89 static inline void atomic_add(long *value, long n)
90 {
91 (void)__atomic_add_fetch(value, n, __ATOMIC_RELAXED);
92 }
93
atomic_swap(long * value,long n)94 static inline long atomic_swap(long *value, long n)
95 {
96 return __atomic_exchange_n(value, n, __ATOMIC_RELAXED);
97 }
98