1
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
14struct cpu_set {
15 bool *cpus;
16 int cpus_len;
17 int next_cpu;
18};
19
20struct 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
33struct bench_res {
34 long hits;
35 long drops;
36 long false_hits;
37};
38
39struct bench {
40 const char *name;
41 void (*validate)();
42 void (*setup)();
43 void *(*producer_thread)(void *ctx);
44 void *(*consumer_thread)(void *ctx);
45 void (*measure)(struct bench_res* res);
46 void (*report_progress)(int iter, struct bench_res* res, long delta_ns);
47 void (*report_final)(struct bench_res res[], int res_cnt);
48};
49
50struct counter {
51 long value;
52} __attribute__((aligned(128)));
53
54extern struct env env;
55extern const struct bench *bench;
56
57void setup_libbpf();
58void hits_drops_report_progress(int iter, struct bench_res *res, long delta_ns);
59void hits_drops_report_final(struct bench_res res[], int res_cnt);
60void false_hits_report_progress(int iter, struct bench_res *res, long delta_ns);
61void false_hits_report_final(struct bench_res res[], int res_cnt);
62
63static inline __u64 get_time_ns() {
64 struct timespec t;
65
66 clock_gettime(CLOCK_MONOTONIC, &t);
67
68 return (u64)t.tv_sec * 1000000000 + t.tv_nsec;
69}
70
71static inline void atomic_inc(long *value)
72{
73 (void)__atomic_add_fetch(value, 1, __ATOMIC_RELAXED);
74}
75
76static inline void atomic_add(long *value, long n)
77{
78 (void)__atomic_add_fetch(value, n, __ATOMIC_RELAXED);
79}
80
81static inline long atomic_swap(long *value, long n)
82{
83 return __atomic_exchange_n(value, n, __ATOMIC_RELAXED);
84}
85
