forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
465 lines
12 KiB
465 lines
12 KiB
// SPDX-License-Identifier: GPL-2.0 |
|
/* Copyright (c) 2020 Facebook */ |
|
#define _GNU_SOURCE |
|
#include <argp.h> |
|
#include <linux/compiler.h> |
|
#include <sys/time.h> |
|
#include <sched.h> |
|
#include <fcntl.h> |
|
#include <pthread.h> |
|
#include <sys/sysinfo.h> |
|
#include <sys/resource.h> |
|
#include <signal.h> |
|
#include "bench.h" |
|
#include "testing_helpers.h" |
|
|
|
struct env env = { |
|
.warmup_sec = 1, |
|
.duration_sec = 5, |
|
.affinity = false, |
|
.consumer_cnt = 1, |
|
.producer_cnt = 1, |
|
}; |
|
|
|
static int libbpf_print_fn(enum libbpf_print_level level, |
|
const char *format, va_list args) |
|
{ |
|
if (level == LIBBPF_DEBUG && !env.verbose) |
|
return 0; |
|
return vfprintf(stderr, format, args); |
|
} |
|
|
|
static int bump_memlock_rlimit(void) |
|
{ |
|
struct rlimit rlim_new = { |
|
.rlim_cur = RLIM_INFINITY, |
|
.rlim_max = RLIM_INFINITY, |
|
}; |
|
|
|
return setrlimit(RLIMIT_MEMLOCK, &rlim_new); |
|
} |
|
|
|
void setup_libbpf() |
|
{ |
|
int err; |
|
|
|
libbpf_set_strict_mode(LIBBPF_STRICT_ALL); |
|
libbpf_set_print(libbpf_print_fn); |
|
|
|
err = bump_memlock_rlimit(); |
|
if (err) |
|
fprintf(stderr, "failed to increase RLIMIT_MEMLOCK: %d", err); |
|
} |
|
|
|
void hits_drops_report_progress(int iter, struct bench_res *res, long delta_ns) |
|
{ |
|
double hits_per_sec, drops_per_sec; |
|
double hits_per_prod; |
|
|
|
hits_per_sec = res->hits / 1000000.0 / (delta_ns / 1000000000.0); |
|
hits_per_prod = hits_per_sec / env.producer_cnt; |
|
drops_per_sec = res->drops / 1000000.0 / (delta_ns / 1000000000.0); |
|
|
|
printf("Iter %3d (%7.3lfus): ", |
|
iter, (delta_ns - 1000000000) / 1000.0); |
|
|
|
printf("hits %8.3lfM/s (%7.3lfM/prod), drops %8.3lfM/s\n", |
|
hits_per_sec, hits_per_prod, drops_per_sec); |
|
} |
|
|
|
void hits_drops_report_final(struct bench_res res[], int res_cnt) |
|
{ |
|
int i; |
|
double hits_mean = 0.0, drops_mean = 0.0; |
|
double hits_stddev = 0.0, drops_stddev = 0.0; |
|
|
|
for (i = 0; i < res_cnt; i++) { |
|
hits_mean += res[i].hits / 1000000.0 / (0.0 + res_cnt); |
|
drops_mean += res[i].drops / 1000000.0 / (0.0 + res_cnt); |
|
} |
|
|
|
if (res_cnt > 1) { |
|
for (i = 0; i < res_cnt; i++) { |
|
hits_stddev += (hits_mean - res[i].hits / 1000000.0) * |
|
(hits_mean - res[i].hits / 1000000.0) / |
|
(res_cnt - 1.0); |
|
drops_stddev += (drops_mean - res[i].drops / 1000000.0) * |
|
(drops_mean - res[i].drops / 1000000.0) / |
|
(res_cnt - 1.0); |
|
} |
|
hits_stddev = sqrt(hits_stddev); |
|
drops_stddev = sqrt(drops_stddev); |
|
} |
|
printf("Summary: hits %8.3lf \u00B1 %5.3lfM/s (%7.3lfM/prod), ", |
|
hits_mean, hits_stddev, hits_mean / env.producer_cnt); |
|
printf("drops %8.3lf \u00B1 %5.3lfM/s\n", |
|
drops_mean, drops_stddev); |
|
} |
|
|
|
const char *argp_program_version = "benchmark"; |
|
const char *argp_program_bug_address = "<[email protected]>"; |
|
const char argp_program_doc[] = |
|
"benchmark Generic benchmarking framework.\n" |
|
"\n" |
|
"This tool runs benchmarks.\n" |
|
"\n" |
|
"USAGE: benchmark <bench-name>\n" |
|
"\n" |
|
"EXAMPLES:\n" |
|
" # run 'count-local' benchmark with 1 producer and 1 consumer\n" |
|
" benchmark count-local\n" |
|
" # run 'count-local' with 16 producer and 8 consumer thread, pinned to CPUs\n" |
|
" benchmark -p16 -c8 -a count-local\n"; |
|
|
|
enum { |
|
ARG_PROD_AFFINITY_SET = 1000, |
|
ARG_CONS_AFFINITY_SET = 1001, |
|
}; |
|
|
|
static const struct argp_option opts[] = { |
|
{ "list", 'l', NULL, 0, "List available benchmarks"}, |
|
{ "duration", 'd', "SEC", 0, "Duration of benchmark, seconds"}, |
|
{ "warmup", 'w', "SEC", 0, "Warm-up period, seconds"}, |
|
{ "producers", 'p', "NUM", 0, "Number of producer threads"}, |
|
{ "consumers", 'c', "NUM", 0, "Number of consumer threads"}, |
|
{ "verbose", 'v', NULL, 0, "Verbose debug output"}, |
|
{ "affinity", 'a', NULL, 0, "Set consumer/producer thread affinity"}, |
|
{ "prod-affinity", ARG_PROD_AFFINITY_SET, "CPUSET", 0, |
|
"Set of CPUs for producer threads; implies --affinity"}, |
|
{ "cons-affinity", ARG_CONS_AFFINITY_SET, "CPUSET", 0, |
|
"Set of CPUs for consumer threads; implies --affinity"}, |
|
{}, |
|
}; |
|
|
|
extern struct argp bench_ringbufs_argp; |
|
|
|
static const struct argp_child bench_parsers[] = { |
|
{ &bench_ringbufs_argp, 0, "Ring buffers benchmark", 0 }, |
|
{}, |
|
}; |
|
|
|
static error_t parse_arg(int key, char *arg, struct argp_state *state) |
|
{ |
|
static int pos_args; |
|
|
|
switch (key) { |
|
case 'v': |
|
env.verbose = true; |
|
break; |
|
case 'l': |
|
env.list = true; |
|
break; |
|
case 'd': |
|
env.duration_sec = strtol(arg, NULL, 10); |
|
if (env.duration_sec <= 0) { |
|
fprintf(stderr, "Invalid duration: %s\n", arg); |
|
argp_usage(state); |
|
} |
|
break; |
|
case 'w': |
|
env.warmup_sec = strtol(arg, NULL, 10); |
|
if (env.warmup_sec <= 0) { |
|
fprintf(stderr, "Invalid warm-up duration: %s\n", arg); |
|
argp_usage(state); |
|
} |
|
break; |
|
case 'p': |
|
env.producer_cnt = strtol(arg, NULL, 10); |
|
if (env.producer_cnt <= 0) { |
|
fprintf(stderr, "Invalid producer count: %s\n", arg); |
|
argp_usage(state); |
|
} |
|
break; |
|
case 'c': |
|
env.consumer_cnt = strtol(arg, NULL, 10); |
|
if (env.consumer_cnt <= 0) { |
|
fprintf(stderr, "Invalid consumer count: %s\n", arg); |
|
argp_usage(state); |
|
} |
|
break; |
|
case 'a': |
|
env.affinity = true; |
|
break; |
|
case ARG_PROD_AFFINITY_SET: |
|
env.affinity = true; |
|
if (parse_num_list(arg, &env.prod_cpus.cpus, |
|
&env.prod_cpus.cpus_len)) { |
|
fprintf(stderr, "Invalid format of CPU set for producers."); |
|
argp_usage(state); |
|
} |
|
break; |
|
case ARG_CONS_AFFINITY_SET: |
|
env.affinity = true; |
|
if (parse_num_list(arg, &env.cons_cpus.cpus, |
|
&env.cons_cpus.cpus_len)) { |
|
fprintf(stderr, "Invalid format of CPU set for consumers."); |
|
argp_usage(state); |
|
} |
|
break; |
|
case ARGP_KEY_ARG: |
|
if (pos_args++) { |
|
fprintf(stderr, |
|
"Unrecognized positional argument: %s\n", arg); |
|
argp_usage(state); |
|
} |
|
env.bench_name = strdup(arg); |
|
break; |
|
default: |
|
return ARGP_ERR_UNKNOWN; |
|
} |
|
return 0; |
|
} |
|
|
|
static void parse_cmdline_args(int argc, char **argv) |
|
{ |
|
static const struct argp argp = { |
|
.options = opts, |
|
.parser = parse_arg, |
|
.doc = argp_program_doc, |
|
.children = bench_parsers, |
|
}; |
|
if (argp_parse(&argp, argc, argv, 0, NULL, NULL)) |
|
exit(1); |
|
if (!env.list && !env.bench_name) { |
|
argp_help(&argp, stderr, ARGP_HELP_DOC, "bench"); |
|
exit(1); |
|
} |
|
} |
|
|
|
static void collect_measurements(long delta_ns); |
|
|
|
static __u64 last_time_ns; |
|
static void sigalarm_handler(int signo) |
|
{ |
|
long new_time_ns = get_time_ns(); |
|
long delta_ns = new_time_ns - last_time_ns; |
|
|
|
collect_measurements(delta_ns); |
|
|
|
last_time_ns = new_time_ns; |
|
} |
|
|
|
/* set up periodic 1-second timer */ |
|
static void setup_timer() |
|
{ |
|
static struct sigaction sigalarm_action = { |
|
.sa_handler = sigalarm_handler, |
|
}; |
|
struct itimerval timer_settings = {}; |
|
int err; |
|
|
|
last_time_ns = get_time_ns(); |
|
err = sigaction(SIGALRM, &sigalarm_action, NULL); |
|
if (err < 0) { |
|
fprintf(stderr, "failed to install SIGALRM handler: %d\n", -errno); |
|
exit(1); |
|
} |
|
timer_settings.it_interval.tv_sec = 1; |
|
timer_settings.it_value.tv_sec = 1; |
|
err = setitimer(ITIMER_REAL, &timer_settings, NULL); |
|
if (err < 0) { |
|
fprintf(stderr, "failed to arm interval timer: %d\n", -errno); |
|
exit(1); |
|
} |
|
} |
|
|
|
static void set_thread_affinity(pthread_t thread, int cpu) |
|
{ |
|
cpu_set_t cpuset; |
|
|
|
CPU_ZERO(&cpuset); |
|
CPU_SET(cpu, &cpuset); |
|
if (pthread_setaffinity_np(thread, sizeof(cpuset), &cpuset)) { |
|
fprintf(stderr, "setting affinity to CPU #%d failed: %d\n", |
|
cpu, errno); |
|
exit(1); |
|
} |
|
} |
|
|
|
static int next_cpu(struct cpu_set *cpu_set) |
|
{ |
|
if (cpu_set->cpus) { |
|
int i; |
|
|
|
/* find next available CPU */ |
|
for (i = cpu_set->next_cpu; i < cpu_set->cpus_len; i++) { |
|
if (cpu_set->cpus[i]) { |
|
cpu_set->next_cpu = i + 1; |
|
return i; |
|
} |
|
} |
|
fprintf(stderr, "Not enough CPUs specified, need CPU #%d or higher.\n", i); |
|
exit(1); |
|
} |
|
|
|
return cpu_set->next_cpu++; |
|
} |
|
|
|
static struct bench_state { |
|
int res_cnt; |
|
struct bench_res *results; |
|
pthread_t *consumers; |
|
pthread_t *producers; |
|
} state; |
|
|
|
const struct bench *bench = NULL; |
|
|
|
extern const struct bench bench_count_global; |
|
extern const struct bench bench_count_local; |
|
extern const struct bench bench_rename_base; |
|
extern const struct bench bench_rename_kprobe; |
|
extern const struct bench bench_rename_kretprobe; |
|
extern const struct bench bench_rename_rawtp; |
|
extern const struct bench bench_rename_fentry; |
|
extern const struct bench bench_rename_fexit; |
|
extern const struct bench bench_trig_base; |
|
extern const struct bench bench_trig_tp; |
|
extern const struct bench bench_trig_rawtp; |
|
extern const struct bench bench_trig_kprobe; |
|
extern const struct bench bench_trig_fentry; |
|
extern const struct bench bench_trig_fentry_sleep; |
|
extern const struct bench bench_trig_fmodret; |
|
extern const struct bench bench_rb_libbpf; |
|
extern const struct bench bench_rb_custom; |
|
extern const struct bench bench_pb_libbpf; |
|
extern const struct bench bench_pb_custom; |
|
|
|
static const struct bench *benchs[] = { |
|
&bench_count_global, |
|
&bench_count_local, |
|
&bench_rename_base, |
|
&bench_rename_kprobe, |
|
&bench_rename_kretprobe, |
|
&bench_rename_rawtp, |
|
&bench_rename_fentry, |
|
&bench_rename_fexit, |
|
&bench_trig_base, |
|
&bench_trig_tp, |
|
&bench_trig_rawtp, |
|
&bench_trig_kprobe, |
|
&bench_trig_fentry, |
|
&bench_trig_fentry_sleep, |
|
&bench_trig_fmodret, |
|
&bench_rb_libbpf, |
|
&bench_rb_custom, |
|
&bench_pb_libbpf, |
|
&bench_pb_custom, |
|
}; |
|
|
|
static void setup_benchmark() |
|
{ |
|
int i, err; |
|
|
|
if (!env.bench_name) { |
|
fprintf(stderr, "benchmark name is not specified\n"); |
|
exit(1); |
|
} |
|
|
|
for (i = 0; i < ARRAY_SIZE(benchs); i++) { |
|
if (strcmp(benchs[i]->name, env.bench_name) == 0) { |
|
bench = benchs[i]; |
|
break; |
|
} |
|
} |
|
if (!bench) { |
|
fprintf(stderr, "benchmark '%s' not found\n", env.bench_name); |
|
exit(1); |
|
} |
|
|
|
printf("Setting up benchmark '%s'...\n", bench->name); |
|
|
|
state.producers = calloc(env.producer_cnt, sizeof(*state.producers)); |
|
state.consumers = calloc(env.consumer_cnt, sizeof(*state.consumers)); |
|
state.results = calloc(env.duration_sec + env.warmup_sec + 2, |
|
sizeof(*state.results)); |
|
if (!state.producers || !state.consumers || !state.results) |
|
exit(1); |
|
|
|
if (bench->validate) |
|
bench->validate(); |
|
if (bench->setup) |
|
bench->setup(); |
|
|
|
for (i = 0; i < env.consumer_cnt; i++) { |
|
err = pthread_create(&state.consumers[i], NULL, |
|
bench->consumer_thread, (void *)(long)i); |
|
if (err) { |
|
fprintf(stderr, "failed to create consumer thread #%d: %d\n", |
|
i, -errno); |
|
exit(1); |
|
} |
|
if (env.affinity) |
|
set_thread_affinity(state.consumers[i], |
|
next_cpu(&env.cons_cpus)); |
|
} |
|
|
|
/* unless explicit producer CPU list is specified, continue after |
|
* last consumer CPU |
|
*/ |
|
if (!env.prod_cpus.cpus) |
|
env.prod_cpus.next_cpu = env.cons_cpus.next_cpu; |
|
|
|
for (i = 0; i < env.producer_cnt; i++) { |
|
err = pthread_create(&state.producers[i], NULL, |
|
bench->producer_thread, (void *)(long)i); |
|
if (err) { |
|
fprintf(stderr, "failed to create producer thread #%d: %d\n", |
|
i, -errno); |
|
exit(1); |
|
} |
|
if (env.affinity) |
|
set_thread_affinity(state.producers[i], |
|
next_cpu(&env.prod_cpus)); |
|
} |
|
|
|
printf("Benchmark '%s' started.\n", bench->name); |
|
} |
|
|
|
static pthread_mutex_t bench_done_mtx = PTHREAD_MUTEX_INITIALIZER; |
|
static pthread_cond_t bench_done = PTHREAD_COND_INITIALIZER; |
|
|
|
static void collect_measurements(long delta_ns) { |
|
int iter = state.res_cnt++; |
|
struct bench_res *res = &state.results[iter]; |
|
|
|
bench->measure(res); |
|
|
|
if (bench->report_progress) |
|
bench->report_progress(iter, res, delta_ns); |
|
|
|
if (iter == env.duration_sec + env.warmup_sec) { |
|
pthread_mutex_lock(&bench_done_mtx); |
|
pthread_cond_signal(&bench_done); |
|
pthread_mutex_unlock(&bench_done_mtx); |
|
} |
|
} |
|
|
|
int main(int argc, char **argv) |
|
{ |
|
parse_cmdline_args(argc, argv); |
|
|
|
if (env.list) { |
|
int i; |
|
|
|
printf("Available benchmarks:\n"); |
|
for (i = 0; i < ARRAY_SIZE(benchs); i++) { |
|
printf("- %s\n", benchs[i]->name); |
|
} |
|
return 0; |
|
} |
|
|
|
setup_benchmark(); |
|
|
|
setup_timer(); |
|
|
|
pthread_mutex_lock(&bench_done_mtx); |
|
pthread_cond_wait(&bench_done, &bench_done_mtx); |
|
pthread_mutex_unlock(&bench_done_mtx); |
|
|
|
if (bench->report_final) |
|
/* skip first sample */ |
|
bench->report_final(state.results + env.warmup_sec, |
|
state.res_cnt - env.warmup_sec); |
|
|
|
return 0; |
|
}
|
|
|