/* SPDX-License-Identifier: GPL-2.0 */ /* Copyright (c) 2026 Meta Platforms, Inc. and affiliates. */ #ifndef __BENCH_BPF_TIMING_H__ #define __BENCH_BPF_TIMING_H__ #include <stdbool.h> #include <linux/types.h> #include "bench.h" #ifndef BENCH_NR_SAMPLES #define BENCH_NR_SAMPLES 4096 #endif #ifndef BENCH_NR_CPUS #define BENCH_NR_CPUS 256 #endif typedef void (*bpf_bench_run_fn)(void *ctx); struct bpf_bench_timing { __u64 (*samples)[BENCH_NR_SAMPLES]; /* skel->bss->timing_samples */ __u32 *idx; /* skel->bss->timing_idx */ volatile __u32 *timing_enabled; /* &skel->bss->timing_enabled */ volatile __u32 *batch_iters_bss; /* &skel->bss->batch_iters */ __u32 batch_iters; __u32 target_samples; __u32 nr_cpus; int warmup_ticks; bool done; bool machine_readable; }; #define BENCH_TIMING_INIT(t, skel, iters) do { \ (t)->samples = (skel)->bss->timing_samples; \ (t)->idx = (skel)->bss->timing_idx; \ (t)->timing_enabled = &(skel)->bss->timing_enabled; \ (t)->batch_iters_bss = &(skel)->bss->batch_iters; \ (t)->batch_iters = (iters); \ (t)->target_samples = 200; \ (t)->nr_cpus = env.nr_cpus; \ (t)->warmup_ticks = 0; \ (t)->done = false; \ (t)->machine_readable = false; \ } while (0) void bpf_bench_timing_measure(struct bpf_bench_timing *t, struct bench_res *res); void bpf_bench_timing_report(struct bpf_bench_timing *t, const char *name, const char *desc); void bpf_bench_calibrate(struct bpf_bench_timing *t, bpf_bench_run_fn run_fn, void *ctx); #endif /* __BENCH_BPF_TIMING_H__ */