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-rw-r--r--tools/testing/selftests/bpf/bench.h97
1 files changed, 97 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/bench.h b/tools/testing/selftests/bpf/bench.h
new file mode 100644
index 0000000000..68180d8f85
--- /dev/null
+++ b/tools/testing/selftests/bpf/bench.h
@@ -0,0 +1,97 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#pragma once
+#include <stdlib.h>
+#include <stdbool.h>
+#include <linux/err.h>
+#include <errno.h>
+#include <unistd.h>
+#include <bpf/bpf.h>
+#include <bpf/libbpf.h>
+#include <math.h>
+#include <time.h>
+#include <sys/syscall.h>
+
+struct cpu_set {
+ bool *cpus;
+ int cpus_len;
+ int next_cpu;
+};
+
+struct env {
+ char *bench_name;
+ int duration_sec;
+ int warmup_sec;
+ bool verbose;
+ bool list;
+ bool affinity;
+ bool quiet;
+ int consumer_cnt;
+ int producer_cnt;
+ int nr_cpus;
+ struct cpu_set prod_cpus;
+ struct cpu_set cons_cpus;
+};
+
+struct basic_stats {
+ double mean;
+ double stddev;
+};
+
+struct bench_res {
+ long hits;
+ long drops;
+ long false_hits;
+ long important_hits;
+ unsigned long gp_ns;
+ unsigned long gp_ct;
+ unsigned int stime;
+};
+
+struct bench {
+ const char *name;
+ const struct argp *argp;
+ void (*validate)(void);
+ void (*setup)(void);
+ void *(*producer_thread)(void *ctx);
+ void *(*consumer_thread)(void *ctx);
+ void (*measure)(struct bench_res* res);
+ void (*report_progress)(int iter, struct bench_res* res, long delta_ns);
+ void (*report_final)(struct bench_res res[], int res_cnt);
+};
+
+struct counter {
+ long value;
+} __attribute__((aligned(128)));
+
+extern struct env env;
+extern const struct bench *bench;
+
+void setup_libbpf(void);
+void hits_drops_report_progress(int iter, struct bench_res *res, long delta_ns);
+void hits_drops_report_final(struct bench_res res[], int res_cnt);
+void false_hits_report_progress(int iter, struct bench_res *res, long delta_ns);
+void false_hits_report_final(struct bench_res res[], int res_cnt);
+void ops_report_progress(int iter, struct bench_res *res, long delta_ns);
+void ops_report_final(struct bench_res res[], int res_cnt);
+void local_storage_report_progress(int iter, struct bench_res *res,
+ long delta_ns);
+void local_storage_report_final(struct bench_res res[], int res_cnt);
+void grace_period_latency_basic_stats(struct bench_res res[], int res_cnt,
+ struct basic_stats *gp_stat);
+void grace_period_ticks_basic_stats(struct bench_res res[], int res_cnt,
+ struct basic_stats *gp_stat);
+
+static inline void atomic_inc(long *value)
+{
+ (void)__atomic_add_fetch(value, 1, __ATOMIC_RELAXED);
+}
+
+static inline void atomic_add(long *value, long n)
+{
+ (void)__atomic_add_fetch(value, n, __ATOMIC_RELAXED);
+}
+
+static inline long atomic_swap(long *value, long n)
+{
+ return __atomic_exchange_n(value, n, __ATOMIC_RELAXED);
+}