nghttp2/src/h2load.cc

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/*
* nghttp2 - HTTP/2.0 C Library
*
* Copyright (c) 2014 Tatsuhiro Tsujikawa
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include "h2load.h"
#include <getopt.h>
#include <signal.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
#include <cstdio>
#include <cassert>
#include <cstdlib>
#include <iostream>
#include <chrono>
#include <thread>
#ifdef HAVE_SPDYLAY
#include <spdylay/spdylay.h>
#endif // HAVE_SPDYLAY
#include <event2/bufferevent_ssl.h>
#include <openssl/err.h>
#include "http-parser/http_parser.h"
#include "h2load_http2_session.h"
#ifdef HAVE_SPDYLAY
#include "h2load_spdy_session.h"
#endif // HAVE_SPDYLAY
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#include "ssl.h"
#include "http2.h"
#include "util.h"
using namespace nghttp2;
namespace h2load {
Config::Config()
: addrs(nullptr),
nreqs(1),
nclients(1),
nthreads(1),
max_concurrent_streams(-1),
window_bits(16),
connection_window_bits(16),
port(0),
verbose(false)
{}
Config::~Config()
{
freeaddrinfo(addrs);
}
Config config;
namespace {
void eventcb(bufferevent *bev, short events, void *ptr);
} // namespace
namespace {
void readcb(bufferevent *bev, void *ptr);
} // namespace
namespace {
void writecb(bufferevent *bev, void *ptr);
} // namespace
namespace {
void debug(const char *format, ...)
{
if(config.verbose) {
fprintf(stderr, "[DEBUG] ");
va_list ap;
va_start(ap, format);
vfprintf(stderr, format, ap);
va_end(ap);
}
}
} // namespace
Stream::Stream()
: status_success(-1)
{}
Client::Client(Worker *worker)
: worker(worker),
ssl(nullptr),
bev(nullptr),
next_addr(config.addrs),
reqidx(0),
state(CLIENT_IDLE)
{}
Client::~Client()
{
disconnect();
}
int Client::connect()
{
if(config.scheme == "https") {
ssl = SSL_new(worker->ssl_ctx);
bev = bufferevent_openssl_socket_new(worker->evbase, -1, ssl,
BUFFEREVENT_SSL_CONNECTING,
BEV_OPT_DEFER_CALLBACKS);
} else {
bev = bufferevent_socket_new(worker->evbase, -1,
BEV_OPT_DEFER_CALLBACKS);
}
int rv = -1;
while(next_addr) {
rv = bufferevent_socket_connect(bev, next_addr->ai_addr,
next_addr->ai_addrlen);
next_addr = next_addr->ai_next;
if(rv == 0) {
break;
}
}
if(rv != 0) {
return -1;
}
bufferevent_enable(bev, EV_READ);
bufferevent_setcb(bev, readcb, writecb, eventcb, this);
return 0;
}
void Client::disconnect()
{
process_abandoned_streams();
if(worker->stats.req_done == worker->stats.req_todo) {
worker->schedule_terminate();
}
int fd = -1;
streams.clear();
session.reset();
state = CLIENT_IDLE;
if(ssl) {
fd = SSL_get_fd(ssl);
SSL_set_shutdown(ssl, SSL_RECEIVED_SHUTDOWN);
SSL_shutdown(ssl);
}
if(bev) {
bufferevent_disable(bev, EV_READ | EV_WRITE);
bufferevent_free(bev);
bev = nullptr;
}
if(ssl) {
SSL_free(ssl);
ssl = nullptr;
}
if(fd != -1) {
shutdown(fd, SHUT_WR);
close(fd);
}
}
void Client::submit_request()
{
session->submit_request();
++worker->stats.req_started;
}
void Client::process_abandoned_streams()
{
worker->stats.req_failed += streams.size();
worker->stats.req_error += streams.size();
worker->stats.req_done += streams.size();
}
void Client::report_progress()
{
if(worker->id == 0 &&
worker->stats.req_done % worker->progress_interval == 0) {
std::cout << "progress: "
<< worker->stats.req_done * 100 / worker->stats.req_todo
<< "% done"
<< std::endl;
}
}
void Client::terminate_session()
{
session->terminate();
}
void Client::on_request(int32_t stream_id)
{
streams[stream_id] = Stream();
}
void Client::on_header(int32_t stream_id,
const uint8_t *name, size_t namelen,
const uint8_t *value, size_t valuelen)
{
auto itr = streams.find(stream_id);
if(itr == std::end(streams)) {
return;
}
auto& stream = (*itr).second;
if(stream.status_success == -1 &&
namelen == 7 && util::streq(":status", 7, name, namelen)) {
int status = 0;
for(size_t i = 0; i < valuelen; ++i) {
if('0' <= value[i] && value[i] <= '9') {
status *= 10;
status += value[i] - '0';
if(status > 999) {
stream.status_success = 0;
return;
}
} else {
break;
}
}
if(status >= 200 && status < 300) {
++worker->stats.status[2];
stream.status_success = 1;
} else if(status < 400) {
++worker->stats.status[3];
stream.status_success = 1;
} else if(status < 600) {
++worker->stats.status[status / 100];
stream.status_success = 0;
} else {
stream.status_success = 0;
}
}
}
void Client::on_stream_close(int32_t stream_id, bool success)
{
++worker->stats.req_done;
if(success && streams[stream_id].status_success == 1) {
++worker->stats.req_success;
} else {
++worker->stats.req_failed;
}
report_progress();
streams.erase(stream_id);
if(worker->stats.req_done == worker->stats.req_todo) {
worker->schedule_terminate();
return;
}
if(worker->stats.req_started < worker->stats.req_todo) {
submit_request();
return;
}
}
int Client::on_connect()
{
session->on_connect();
auto nreq = std::min(worker->stats.req_todo - worker->stats.req_started,
std::min(worker->stats.req_todo / worker->clients.size(),
(size_t)config.max_concurrent_streams));
for(; nreq > 0; --nreq) {
submit_request();
}
return 0;
}
int Client::on_read()
{
ssize_t rv = session->on_read();
if(rv < 0) {
return -1;
}
worker->stats.bytes_total += rv;
return on_write();
}
int Client::on_write()
{
return session->on_write();
}
Worker::Worker(uint32_t id, SSL_CTX *ssl_ctx, size_t req_todo, size_t nclients,
Config *config)
: stats{0}, evbase(event_base_new()), ssl_ctx(ssl_ctx), config(config),
id(id), term_timer_started(false)
{
stats.req_todo = req_todo;
progress_interval = std::max((size_t)1, req_todo / 10);
for(size_t i = 0; i < nclients; ++i) {
clients.push_back(util::make_unique<Client>(this));
}
}
Worker::~Worker()
{
event_base_free(evbase);
}
void Worker::run()
{
for(auto& client : clients) {
if(client->connect() != 0) {
std::cerr << "client could not connect to host" << std::endl;
client->disconnect();
}
}
event_base_loop(evbase, 0);
}
namespace {
void term_timeout_cb(evutil_socket_t fd, short what, void *arg)
{
auto worker = static_cast<Worker*>(arg);
worker->terminate_session();
}
} // namespace
void Worker::schedule_terminate()
{
if(term_timer_started) {
return;
}
term_timer_started = true;
auto term_timer = evtimer_new(evbase, term_timeout_cb, this);
timeval timeout = { 0, 0 };
evtimer_add(term_timer, &timeout);
}
void Worker::terminate_session()
{
for(auto& client : clients) {
if(client->session == nullptr) {
client->disconnect();
continue;
}
client->terminate_session();
if(client->on_write() != 0) {
client->disconnect();
}
}
}
namespace {
void debug_nextproto_error()
{
#ifdef HAVE_SPDYLAY
debug("no supported protocol was negotiated, expected: %s, "
"spdy/2, spdy/3, spdy/3.1\n", NGHTTP2_PROTO_VERSION_ID);
#else // !HAVE_SPDYLAY
debug("no supported protocol was negotiated, expected: %s\n",
NGHTTP2_PROTO_VERSION_ID);
#endif // !HAVE_SPDYLAY
}
} // namespace
namespace {
void eventcb(bufferevent *bev, short events, void *ptr)
{
int rv;
auto client = static_cast<Client*>(ptr);
if(events & BEV_EVENT_CONNECTED) {
if(client->ssl) {
const unsigned char *next_proto = nullptr;
unsigned int next_proto_len;
SSL_get0_next_proto_negotiated(client->ssl,
&next_proto, &next_proto_len);
if(!next_proto) {
debug_nextproto_error();
client->disconnect();
return;
}
if(next_proto_len == NGHTTP2_PROTO_VERSION_ID_LEN &&
memcmp(NGHTTP2_PROTO_VERSION_ID, next_proto, next_proto_len) == 0) {
client->session = util::make_unique<Http2Session>(client);
} else {
#ifdef HAVE_SPDYLAY
auto spdy_version = spdylay_npn_get_version(next_proto,
next_proto_len);
if(spdy_version) {
client->session = util::make_unique<SpdySession>(client,
spdy_version);
} else {
debug_nextproto_error();
client->disconnect();
return;
}
#else // !HAVE_SPDYLAY
debug_nextproto_error();
client->disconnect();
return;
#endif // !HAVE_SPDYLAY
}
} else {
client->session = util::make_unique<Http2Session>(client);
}
int fd = bufferevent_getfd(bev);
int val = 1;
setsockopt(fd, IPPROTO_TCP, TCP_NODELAY,
reinterpret_cast<char *>(&val), sizeof(val));
client->state = CLIENT_CONNECTED;
client->on_connect();
return;
}
if(events & BEV_EVENT_EOF) {
client->disconnect();
return;
}
if(events & (BEV_EVENT_ERROR | BEV_EVENT_TIMEOUT)) {
if(client->state == CLIENT_IDLE) {
client->disconnect();
rv = client->connect();
if(rv == 0) {
return;
}
}
debug("error/eof\n");
client->disconnect();
return;
}
}
} // namespace
namespace {
void readcb(bufferevent *bev, void *ptr)
{
int rv;
auto client = static_cast<Client*>(ptr);
rv = client->on_read();
if(rv != 0) {
client->disconnect();
}
}
} // namespace
namespace {
void writecb(bufferevent *bev, void *ptr)
{
if(evbuffer_get_length(bufferevent_get_output(bev)) > 0) {
return;
}
int rv;
auto client = static_cast<Client*>(ptr);
rv = client->on_write();
if(rv != 0) {
client->disconnect();
}
}
} // namespace
namespace {
void resolve_host()
{
int rv;
addrinfo hints, *res;
memset(&hints, 0, sizeof(hints));
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
hints.ai_protocol = 0;
hints.ai_flags = AI_ADDRCONFIG;
rv = getaddrinfo(config.host.c_str(), util::utos(config.port).c_str(),
&hints, &res);
if(rv != 0) {
std::cerr << "getaddrinfo() failed: "
<< gai_strerror(rv) << std::endl;
exit(EXIT_FAILURE);
}
if(res == nullptr) {
std::cerr << "No address returned" << std::endl;
exit(EXIT_FAILURE);
}
config.addrs = res;
}
} // namespace
namespace {
std::string get_reqline(const char *uri, const http_parser_url& u)
{
std::string reqline;
if(util::has_uri_field(u, UF_PATH)) {
reqline = util::get_uri_field(uri, u, UF_PATH);
} else {
reqline = "/";
}
if(util::has_uri_field(u, UF_QUERY)) {
reqline += "?";
reqline += util::get_uri_field(uri, u, UF_QUERY);
}
return reqline;
}
} // namespace
namespace {
int client_select_next_proto_cb(SSL* ssl,
unsigned char **out, unsigned char *outlen,
const unsigned char *in, unsigned int inlen,
void *arg)
{
if(nghttp2_select_next_protocol(out, outlen, in, inlen) > 0) {
return SSL_TLSEXT_ERR_OK;
}
#ifdef HAVE_SPDYLAY
else if(spdylay_select_next_protocol(out, outlen, in, inlen) > 0) {
return SSL_TLSEXT_ERR_OK;
}
#endif
return SSL_TLSEXT_ERR_NOACK;
}
} // namespace
namespace {
void print_version(std::ostream& out)
{
out << "h2load nghttp2/" NGHTTP2_VERSION << std::endl;
}
} // namespace
namespace {
void print_usage(std::ostream& out)
{
out << R"(Usage: h2load [OPTIONS]... <URI>...
benchmarking tool for HTTP/2 and SPDY server)" << std::endl;
}
} // namespace
namespace {
void print_help(std::ostream& out)
{
print_usage(out);
out << R"(
<URI> Specify URI to access. Multiple URIs can be
specified. URIs are used in this order for each
client. All URIs are used, then first URI is
used and then 2nd URI, and so on. The scheme,
host and port in the subsequent URIs, if present,
are ignored. Those in the first URI are used
solely.
Options:
-n, --requests=<N> Number of requests. Default: )"
<< config.nreqs << R"(
-c, --clients=<N> Number of concurrent clients. Default: )"
<< config.nclients << R"(
-t, --threads=<N> Number of native threads. Default: )"
<< config.nthreads << R"(
-m, --max-concurrent-streams=(auto|<N>)
Max concurrent streams to issue per session. If
"auto" is given, the number of given URIs is
used. Default: auto
-w, --window-bits=<N>
Sets the stream level initial window size to
(2**<N>)-1. For SPDY, 2**<N> is used instead.
-W, --connection-window-bits=<N>
Sets the connection level initial window size to
(2**<N>)-1. For SPDY, if <N> is strictly less
than 16, this option is ignored. Otherwise
2**<N> is used for SPDY.
-v, --verbose Output debug information.
--version Display version information and exit.
-h, --help Display this help and exit.)"
<< std::endl;
}
} // namespace
int main(int argc, char **argv)
{
while(1) {
int flag = 0;
static option long_options[] = {
{"requests", required_argument, nullptr, 'n'},
{"clients", required_argument, nullptr, 'c'},
{"threads", required_argument, nullptr, 't'},
{"max-concurrent-streams", required_argument, nullptr, 'm'},
{"window-bits", required_argument, nullptr, 'w'},
{"connection-window-bits", required_argument, nullptr, 'W'},
{"verbose", no_argument, nullptr, 'v'},
{"help", no_argument, nullptr, 'h'},
{"version", no_argument, &flag, 1},
{nullptr, 0, nullptr, 0 }
};
int option_index = 0;
auto c = getopt_long(argc, argv, "hvW:c:m:n:t:w:", long_options,
&option_index);
if(c == -1) {
break;
}
switch(c) {
case 'n':
config.nreqs = strtoul(optarg, nullptr, 10);
break;
case 'c':
config.nclients = strtoul(optarg, nullptr, 10);
break;
case 't':
config.nthreads = strtoul(optarg, nullptr, 10);
break;
case 'm':
if(util::strieq("auto", optarg)) {
config.max_concurrent_streams = -1;
} else {
config.max_concurrent_streams = strtoul(optarg, nullptr, 10);
}
break;
case 'w':
case 'W': {
errno = 0;
char *endptr = nullptr;
auto n = strtoul(optarg, &endptr, 10);
if(errno == 0 && *endptr == '\0' && n < 31) {
if(c == 'w') {
config.window_bits = n;
} else {
config.connection_window_bits = n;
}
} else {
std::cerr << "-" << static_cast<char>(c)
<< ": specify the integer in the range [0, 30], inclusive"
<< std::endl;
exit(EXIT_FAILURE);
}
break;
}
case 'v':
config.verbose = true;
break;
case 'h':
print_help(std::cout);
exit(EXIT_SUCCESS);
case '?':
util::show_candidates(argv[optind - 1], long_options);
exit(EXIT_FAILURE);
case 0:
switch(flag) {
case 1:
// version option
print_version(std::cout);
exit(EXIT_SUCCESS);
}
break;
default:
break;
}
}
if(argc == optind) {
std::cerr << "no URI given" << std::endl;
exit(EXIT_FAILURE);
}
if(config.nreqs == 0) {
std::cerr << "-n: the number of requests must be strictly greater than 0."
<< std::endl;
exit(EXIT_FAILURE);
}
if(config.max_concurrent_streams == 0) {
std::cerr << "-m: the max concurrent streams must be strictly greater "
<< "than 0."
<< std::endl;
exit(EXIT_FAILURE);
}
if(config.nthreads == 0) {
std::cerr << "-t: the number of threads must be strictly greater than 0."
<< std::endl;
exit(EXIT_FAILURE);
}
if(config.nreqs < config.nclients) {
std::cerr << "-n, -c: the number of requests must be greater than or "
<< "equal to the concurrent clients."
<< std::endl;
exit(EXIT_FAILURE);
}
if(config.nthreads > std::thread::hardware_concurrency()) {
std::cerr << "-t: warning: the number of threads is greater than hardware "
<< "cores."
<< std::endl;
}
struct sigaction act;
memset(&act, 0, sizeof(struct sigaction));
act.sa_handler = SIG_IGN;
sigaction(SIGPIPE, &act, nullptr);
SSL_load_error_strings();
SSL_library_init();
2014-03-04 13:29:42 +01:00
ssl::LibsslGlobalLock();
auto ssl_ctx = SSL_CTX_new(SSLv23_client_method());
if(!ssl_ctx) {
std::cerr << "Failed to create SSL_CTX: "
<< ERR_error_string(ERR_get_error(), nullptr) << std::endl;
exit(EXIT_FAILURE);
}
SSL_CTX_set_next_proto_select_cb(ssl_ctx,
client_select_next_proto_cb, nullptr);
// First URI is treated specially. We use scheme, host and port of
// this URI and ignore those in the remaining URIs if present.
http_parser_url u;
memset(&u, 0, sizeof(u));
auto uri = argv[optind];
if(http_parser_parse_url(uri, strlen(uri), 0, &u) != 0 ||
!util::has_uri_field(u, UF_SCHEMA) || !util::has_uri_field(u, UF_HOST)) {
std::cerr << "invalid URI: " << uri << std::endl;
exit(EXIT_FAILURE);
}
config.scheme = util::get_uri_field(uri, u, UF_SCHEMA);
config.host = util::get_uri_field(uri, u, UF_HOST);
if(util::has_uri_field(u, UF_PORT)) {
config.port = u.port;
} else {
config.port = util::get_default_port(uri, u);
}
std::vector<std::string> reqlines;
reqlines.push_back(get_reqline(uri, u));
++optind;
for(int i = optind; i < argc; ++i) {
memset(&u, 0, sizeof(u));
auto uri = argv[i];
if(http_parser_parse_url(uri, strlen(uri), 0, &u) != 0) {
std::cerr << "invalid URI: " << uri << std::endl;
exit(EXIT_FAILURE);
}
reqlines.push_back(get_reqline(uri, u));
}
if(config.max_concurrent_streams == -1) {
config.max_concurrent_streams = reqlines.size();
}
Headers shared_nva;
shared_nva.emplace_back(":scheme", config.scheme);
if(config.port != util::get_default_port(uri, u)) {
shared_nva.emplace_back(":authority",
config.host + ":" + util::utos(config.port));
} else {
shared_nva.emplace_back(":authority", config.host);
}
shared_nva.emplace_back(":method", "GET");
for(auto& req : reqlines) {
// For nghttp2
std::vector<nghttp2_nv> nva;
nva.push_back(http2::make_nv_ls(":path", req));
for(auto& nv : shared_nva) {
nva.push_back(http2::make_nv(nv.first, nv.second));
}
config.nva.push_back(std::move(nva));
// For spdylay
std::vector<const char*> cva;
cva.push_back(":path");
cva.push_back(req.c_str());
for(auto& nv : shared_nva) {
if(nv.first == ":authority") {
cva.push_back(":host");
} else {
cva.push_back(nv.first.c_str());
}
cva.push_back(nv.second.c_str());
}
cva.push_back(":version");
cva.push_back("HTTP/1.1");
cva.push_back(nullptr);
config.nv.push_back(std::move(cva));
}
resolve_host();
size_t nreqs_per_thread = config.nreqs / config.nthreads;
ssize_t nreqs_rem = config.nreqs % config.nthreads;
size_t nclients_per_thread = config.nclients / config.nthreads;
ssize_t nclients_rem = config.nclients % config.nthreads;
std::cout << "starting benchmark..." << std::endl;
std::vector<std::thread> threads;
auto start = std::chrono::steady_clock::now();
std::vector<std::unique_ptr<Worker>> workers;
for(size_t i = 0; i < config.nthreads - 1; ++i) {
auto nreqs = nreqs_per_thread + (nreqs_rem-- > 0);
auto nclients = nclients_per_thread + (nclients_rem-- > 0);
std::cout << "spawning thread #" << i << ": "
<< nclients << " concurrent clients, "
<< nreqs << " total requests"
<< std::endl;
workers.push_back(util::make_unique<Worker>(i, ssl_ctx, nreqs, nclients,
&config));
threads.emplace_back(&Worker::run, workers.back().get());
}
auto nreqs_last = nreqs_per_thread + (nreqs_rem-- > 0);
auto nclients_last = nclients_per_thread + (nclients_rem-- > 0);
std::cout << "spawning thread #" << (config.nthreads - 1) << ": "
<< nclients_last << " concurrent clients, "
<< nreqs_last << " total requests"
<< std::endl;
Worker worker(config.nthreads - 1, ssl_ctx, nreqs_last, nclients_last,
&config);
worker.run();
for(size_t i = 0; i < config.nthreads - 1; ++i) {
threads[i].join();
worker.stats.req_todo += workers[i]->stats.req_todo;
worker.stats.req_started += workers[i]->stats.req_started;
worker.stats.req_done += workers[i]->stats.req_done;
worker.stats.req_success += workers[i]->stats.req_success;
worker.stats.req_failed += workers[i]->stats.req_failed;
worker.stats.req_error += workers[i]->stats.req_error;
worker.stats.bytes_total += workers[i]->stats.bytes_total;
worker.stats.bytes_head += workers[i]->stats.bytes_head;
worker.stats.bytes_body += workers[i]->stats.bytes_body;
for(size_t j = 0; j < 6; ++j) {
worker.stats.status[j] += workers[i]->stats.status[j];
}
}
auto end = std::chrono::steady_clock::now();
auto duration =
std::chrono::duration_cast<std::chrono::microseconds>(end - start).count();
// Requests which have not been issued due to connection errors, are
// counted towards req_failed and req_error.
auto req_not_issued = worker.stats.req_todo
- worker.stats.req_success - worker.stats.req_failed;
worker.stats.req_failed += req_not_issued;
worker.stats.req_error += req_not_issued;
// UI is heavily inspired by weighttp
// https://github.com/lighttpd/weighttp
size_t rps;
int64_t kbps;
if(duration > 0) {
auto secd = static_cast<double>(duration) / (1000 * 1000);
rps = worker.stats.req_todo / secd;
kbps = (worker.stats.bytes_head + worker.stats.bytes_body) / secd / 1024;
} else {
rps = 0;
kbps = 0;
}
auto sec = duration / (1000 * 1000);
auto millisec = (duration / 1000) % 1000;
auto microsec = duration % 1000;
std::cout << "\n"
<< "finished in "
<< sec << " sec, "
<< millisec << " millisec and "
<< microsec << " microsec, "
<< rps << " req/s, "
<< kbps << " kbytes/s\n"
<< "requests: "
<< worker.stats.req_todo << " total, "
<< worker.stats.req_started << " started, "
<< worker.stats.req_done << " done, "
<< worker.stats.req_success << " succeeded, "
<< worker.stats.req_failed << " failed, "
<< worker.stats.req_error << " errored\n"
<< "status codes: "
<< worker.stats.status[2] << " 2xx, "
<< worker.stats.status[3] << " 3xx, "
<< worker.stats.status[4] << " 4xx, "
<< worker.stats.status[5] << " 5xx\n"
<< "traffic: "
<< worker.stats.bytes_total << " bytes total, "
<< worker.stats.bytes_head << " bytes headers, "
<< worker.stats.bytes_body << " bytes data"
<< std::endl;
return 0;
}
} // namespace h2load
int main(int argc, char **argv)
{
return h2load::main(argc, argv);
}