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nghttp2/src/h2load.cc

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/*
* nghttp2 - HTTP/2 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 <fstream>
#include <chrono>
#include <thread>
#include <future>
#ifdef HAVE_SPDYLAY
#include <spdylay/spdylay.h>
#endif // HAVE_SPDYLAY
#include <openssl/err.h>
#include <openssl/conf.h>
#include "http-parser/http_parser.h"
#include "h2load_http2_session.h"
#ifdef HAVE_SPDYLAY
#include "h2load_spdy_session.h"
#endif // HAVE_SPDYLAY
#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),
no_tls_proto(PROTO_HTTP2), port(0), default_port(0), verbose(false) {}
Config::~Config() { freeaddrinfo(addrs); }
Config config;
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
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
Stream::Stream() : status_success(-1) {}
namespace {
void readcb(struct ev_loop *loop, ev_io *w, int revents) {
auto client = static_cast<Client *>(w->data);
if (client->do_read() != 0) {
client->fail();
}
}
} // namespace
namespace {
void writecb(struct ev_loop *loop, ev_io *w, int revents) {
auto client = static_cast<Client *>(w->data);
auto rv = client->do_write();
if (rv == Client::ERR_CONNECT_FAIL) {
client->disconnect();
rv = client->connect();
if (rv != 0) {
client->fail();
return;
}
return;
}
if (rv != 0) {
client->fail();
}
}
} // namespace
Client::Client(Worker *worker, size_t req_todo)
: worker(worker), ssl(nullptr), next_addr(config.addrs), reqidx(0),
state(CLIENT_IDLE), req_todo(req_todo), req_started(0), req_done(0),
fd(-1) {
ev_io_init(&wev, writecb, 0, EV_WRITE);
ev_io_init(&rev, readcb, 0, EV_READ);
wev.data = this;
rev.data = this;
}
Client::~Client() { disconnect(); }
int Client::do_read() { return readfn(*this); }
int Client::do_write() { return writefn(*this); }
int Client::connect() {
while (next_addr) {
auto addr = next_addr;
next_addr = next_addr->ai_next;
fd = util::create_nonblock_socket(addr->ai_family);
if (fd == -1) {
continue;
}
if (config.scheme == "https") {
ssl = SSL_new(worker->ssl_ctx);
auto config = worker->config;
if (!util::numeric_host(config->host.c_str())) {
SSL_set_tlsext_host_name(ssl, config->host.c_str());
}
SSL_set_fd(ssl, fd);
SSL_set_connect_state(ssl);
}
auto rv = ::connect(fd, addr->ai_addr, addr->ai_addrlen);
if (rv != 0 && errno != EINPROGRESS) {
if (ssl) {
SSL_free(ssl);
ssl = nullptr;
}
close(fd);
fd = -1;
continue;
}
break;
}
if (fd == -1) {
return -1;
}
writefn = &Client::connected;
on_readfn = &Client::on_read;
on_writefn = &Client::on_write;
ev_io_set(&rev, fd, EV_READ);
ev_io_set(&wev, fd, EV_WRITE);
ev_io_start(worker->loop, &wev);
return 0;
}
void Client::fail() {
process_abandoned_streams();
disconnect();
}
void Client::disconnect() {
streams.clear();
session.reset();
state = CLIENT_IDLE;
ev_io_stop(worker->loop, &wev);
ev_io_stop(worker->loop, &rev);
if (ssl) {
SSL_set_shutdown(ssl, SSL_RECEIVED_SHUTDOWN);
ERR_clear_error();
SSL_shutdown(ssl);
SSL_free(ssl);
ssl = nullptr;
}
if (fd != -1) {
shutdown(fd, SHUT_WR);
close(fd);
fd = -1;
}
}
void Client::submit_request() {
session->submit_request();
++worker->stats.req_started;
++req_started;
}
void Client::process_abandoned_streams() {
auto req_abandoned = req_todo - req_done;
worker->stats.req_failed += req_abandoned;
worker->stats.req_error += req_abandoned;
worker->stats.req_done += req_abandoned;
req_done = req_todo;
}
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;
}
}
namespace {
const char *get_tls_protocol(SSL *ssl) {
auto session = SSL_get_session(ssl);
switch (session->ssl_version) {
case SSL2_VERSION:
return "SSLv2";
case SSL3_VERSION:
return "SSLv3";
case TLS1_2_VERSION:
return "TLSv1.2";
case TLS1_1_VERSION:
return "TLSv1.1";
case TLS1_VERSION:
return "TLSv1";
default:
return "unknown";
}
}
} // namespace
namespace {
void print_server_tmp_key(SSL *ssl) {
#if OPENSSL_VERSION_NUMBER >= 0x10002000L
EVP_PKEY *key;
if (!SSL_get_server_tmp_key(ssl, &key)) {
return;
}
auto key_del = util::defer(key, EVP_PKEY_free);
std::cout << "Server Temp Key: ";
switch (EVP_PKEY_id(key)) {
case EVP_PKEY_RSA:
std::cout << "RSA " << EVP_PKEY_bits(key) << " bits" << std::endl;
break;
case EVP_PKEY_DH:
std::cout << "DH " << EVP_PKEY_bits(key) << " bits" << std::endl;
break;
case EVP_PKEY_EC: {
auto ec = EVP_PKEY_get1_EC_KEY(key);
auto ec_del = util::defer(ec, EC_KEY_free);
auto nid = EC_GROUP_get_curve_name(EC_KEY_get0_group(ec));
auto cname = EC_curve_nid2nist(nid);
if (!cname) {
cname = OBJ_nid2sn(nid);
}
std::cout << "ECDH " << cname << " " << EVP_PKEY_bits(key) << " bits"
<< std::endl;
break;
}
}
#endif // OPENSSL_VERSION_NUMBER >= 0x10002000L
}
} // namespace
void Client::report_tls_info() {
if (worker->id == 0 && !worker->tls_info_report_done) {
worker->tls_info_report_done = true;
auto cipher = SSL_get_current_cipher(ssl);
std::cout << "Protocol: " << get_tls_protocol(ssl) << "\n"
<< "Cipher: " << SSL_CIPHER_get_name(cipher) << std::endl;
print_server_tmp_key(ssl);
}
}
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;
++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 (req_done == req_todo) {
terminate_session();
return;
}
if (req_started < req_todo) {
submit_request();
return;
}
}
int Client::noop() { return 0; }
int Client::on_connect() {
if (ssl) {
report_tls_info();
const unsigned char *next_proto = nullptr;
unsigned int next_proto_len;
SSL_get0_next_proto_negotiated(ssl, &next_proto, &next_proto_len);
for (int i = 0; i < 2; ++i) {
if (next_proto) {
if (util::check_h2_is_selected(next_proto, next_proto_len)) {
session = util::make_unique<Http2Session>(this);
} else {
#ifdef HAVE_SPDYLAY
auto spdy_version =
spdylay_npn_get_version(next_proto, next_proto_len);
if (spdy_version) {
session = util::make_unique<SpdySession>(this, spdy_version);
} else {
debug_nextproto_error();
fail();
return -1;
}
#else // !HAVE_SPDYLAY
debug_nextproto_error();
fail();
return -1;
#endif // !HAVE_SPDYLAY
}
}
#if OPENSSL_VERSION_NUMBER >= 0x10002000L
SSL_get0_alpn_selected(ssl, &next_proto, &next_proto_len);
#else // OPENSSL_VERSION_NUMBER < 0x10002000L
break;
#endif // OPENSSL_VERSION_NUMBER < 0x10002000L
}
if (!next_proto) {
debug_nextproto_error();
fail();
return -1;
}
} else {
switch (config.no_tls_proto) {
case Config::PROTO_HTTP2:
session = util::make_unique<Http2Session>(this);
break;
#ifdef HAVE_SPDYLAY
case Config::PROTO_SPDY2:
session = util::make_unique<SpdySession>(this, SPDYLAY_PROTO_SPDY2);
break;
case Config::PROTO_SPDY3:
session = util::make_unique<SpdySession>(this, SPDYLAY_PROTO_SPDY3);
break;
case Config::PROTO_SPDY3_1:
session = util::make_unique<SpdySession>(this, SPDYLAY_PROTO_SPDY3_1);
break;
#endif // HAVE_SPDYLAY
default:
// unreachable
assert(0);
}
}
state = CLIENT_CONNECTED;
session->on_connect();
auto nreq =
std::min(req_todo - req_started, (size_t)config.max_concurrent_streams);
for (; nreq > 0; --nreq) {
submit_request();
}
signal_write();
return 0;
}
int Client::on_net_error() {
if (state == CLIENT_IDLE) {
disconnect();
if (connect() == 0) {
return 0;
}
}
debug("error/eof\n");
return -1;
}
int Client::on_read(const uint8_t *data, size_t len) {
auto rv = session->on_read(data, len);
if (rv != 0) {
return -1;
}
worker->stats.bytes_total += len;
signal_write();
return 0;
}
int Client::on_write() {
if (session->on_write() != 0) {
return -1;
}
return 0;
}
int Client::read_clear() {
uint8_t buf[8192];
for (;;) {
ssize_t nread;
while ((nread = read(fd, buf, sizeof(buf))) == -1 && errno == EINTR)
;
if (nread == -1) {
if (errno == EAGAIN || errno == EWOULDBLOCK) {
return 0;
}
return on_net_error();
}
if (nread == 0) {
return -1;
}
if (on_read(buf, nread) != 0) {
return -1;
}
}
return 0;
}
int Client::write_clear() {
for (;;) {
if (wb.rleft() > 0) {
struct iovec iov[2];
auto iovcnt = wb.riovec(iov);
ssize_t nwrite;
while ((nwrite = writev(fd, iov, iovcnt)) == -1 && errno == EINTR)
;
if (nwrite == -1) {
if (errno == EAGAIN || errno == EWOULDBLOCK) {
ev_io_start(worker->loop, &wev);
return 0;
}
return -1;
}
wb.drain(nwrite);
continue;
}
if (on_write() != 0) {
return -1;
}
if (wb.rleft() == 0) {
wb.reset();
break;
}
}
ev_io_stop(worker->loop, &wev);
return 0;
}
int Client::connected() {
if (!util::check_socket_connected(fd)) {
return ERR_CONNECT_FAIL;
}
ev_io_start(worker->loop, &rev);
ev_io_stop(worker->loop, &wev);
if (ssl) {
readfn = &Client::tls_handshake;
writefn = &Client::tls_handshake;
return do_write();
}
readfn = &Client::read_clear;
writefn = &Client::write_clear;
if (on_connect() != 0) {
return -1;
}
return 0;
}
int Client::tls_handshake() {
ERR_clear_error();
auto rv = SSL_do_handshake(ssl);
if (rv == 0) {
return -1;
}
if (rv < 0) {
auto err = SSL_get_error(ssl, rv);
switch (err) {
case SSL_ERROR_WANT_READ:
ev_io_stop(worker->loop, &wev);
return 0;
case SSL_ERROR_WANT_WRITE:
ev_io_start(worker->loop, &wev);
return 0;
default:
return -1;
}
}
ev_io_stop(worker->loop, &wev);
readfn = &Client::read_tls;
writefn = &Client::write_tls;
if (on_connect() != 0) {
return -1;
}
return 0;
}
int Client::read_tls() {
uint8_t buf[8192];
ERR_clear_error();
for (;;) {
auto rv = SSL_read(ssl, buf, sizeof(buf));
if (rv == 0) {
return -1;
}
if (rv < 0) {
auto err = SSL_get_error(ssl, rv);
switch (err) {
case SSL_ERROR_WANT_READ:
return 0;
case SSL_ERROR_WANT_WRITE:
// renegotiation started
return -1;
default:
return -1;
}
}
if (on_read(buf, rv) != 0) {
return -1;
}
}
}
int Client::write_tls() {
ERR_clear_error();
for (;;) {
if (wb.rleft() > 0) {
const void *p;
size_t len;
std::tie(p, len) = wb.get();
auto rv = SSL_write(ssl, p, len);
if (rv == 0) {
return -1;
}
if (rv < 0) {
auto err = SSL_get_error(ssl, rv);
switch (err) {
case SSL_ERROR_WANT_READ:
// renegotiation started
return -1;
case SSL_ERROR_WANT_WRITE:
ev_io_start(worker->loop, &wev);
return 0;
default:
return -1;
}
}
wb.drain(rv);
continue;
}
if (on_write() != 0) {
return -1;
}
if (wb.rleft() == 0) {
break;
}
}
ev_io_stop(worker->loop, &wev);
return 0;
}
void Client::signal_write() { ev_io_start(worker->loop, &wev); }
Worker::Worker(uint32_t id, SSL_CTX *ssl_ctx, size_t req_todo, size_t nclients,
Config *config)
: stats{0}, loop(ev_loop_new(0)), ssl_ctx(ssl_ctx), config(config), id(id),
tls_info_report_done(false) {
stats.req_todo = req_todo;
progress_interval = std::max((size_t)1, req_todo / 10);
auto nreqs_per_client = req_todo / nclients;
auto nreqs_rem = req_todo % nclients;
for (size_t i = 0; i < nclients; ++i) {
auto req_todo = nreqs_per_client;
if (nreqs_rem > 0) {
++req_todo;
--nreqs_rem;
}
clients.push_back(util::make_unique<Client>(this, req_todo));
}
}
Worker::~Worker() {
// first clear clients so that io watchers are stopped before
// destructing ev_loop.
clients.clear();
ev_loop_destroy(loop);
}
void Worker::run() {
for (auto &client : clients) {
if (client->connect() != 0) {
std::cerr << "client could not connect to host" << std::endl;
client->fail();
}
}
ev_run(loop, 0);
}
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 (util::select_h2(const_cast<const unsigned char **>(out), outlen, in,
inlen)) {
return SSL_TLSEXT_ERR_OK;
}
#ifdef HAVE_SPDYLAY
if (spdylay_select_next_protocol(out, outlen, in, inlen) > 0) {
return SSL_TLSEXT_ERR_OK;
}
#endif
return SSL_TLSEXT_ERR_NOACK;
}
} // namespace
namespace {
template <typename Iterator>
std::vector<std::string> parse_uris(Iterator first, Iterator last) {
std::vector<std::string> reqlines;
// 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));
if (first == last) {
std::cerr << "no URI available" << std::endl;
exit(EXIT_FAILURE);
}
auto uri = (*first).c_str();
++first;
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);
config.default_port = util::get_default_port(uri, u);
if (util::has_uri_field(u, UF_PORT)) {
config.port = u.port;
} else {
config.port = config.default_port;
}
reqlines.push_back(get_reqline(uri, u));
for (; first != last; ++first) {
http_parser_url u;
memset(&u, 0, sizeof(u));
auto uri = (*first).c_str();
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));
}
return reqlines;
}
} // namespace
namespace {
std::vector<std::string> read_uri_from_file(std::istream &infile) {
std::vector<std::string> uris;
std::string line_uri;
while (std::getline(infile, line_uri)) {
uris.push_back(line_uri);
}
return uris;
}
} // 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"(
-i, --input-file=<FILE>
Path of a file with multiple URIs are seperated
by EOLs. This option will disable URIs getting
from command-line. If '-' is given as <FILE>,
URIs will be read from stdin. 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.
-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.
-H, --header=<HEADER>
Add/Override a header to the requests.
-p, --no-tls-proto=<PROTOID>
Specify ALPN identifier of the protocol to be
used when accessing http URI without SSL/TLS.)";
#ifdef HAVE_SPDYLAY
out << R"(
Available protocols: spdy/2, spdy/3, spdy/3.1 and
)";
#else // !HAVE_SPDYLAY
out << R"(
Available protocol: )";
#endif // !HAVE_SPDYLAY
out << NGHTTP2_CLEARTEXT_PROTO_VERSION_ID << R"(
Default: )" << NGHTTP2_CLEARTEXT_PROTO_VERSION_ID << R"(
-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) {
static 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'},
{"input-file", required_argument, nullptr, 'i'},
{"header", required_argument, nullptr, 'H'},
{"no-tls-proto", required_argument, nullptr, 'p'},
{"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:p:t:w:H:i:", 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':
#ifdef NOTHREADS
std::cerr << "-t: WARNING: Threading disabled at build time, "
<< "no threads created." << std::endl;
#else
config.nthreads = strtoul(optarg, nullptr, 10);
#endif // NOTHREADS
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 'H': {
char *header = optarg;
// Skip first possible ':' in the header name
char *value = strchr(optarg + 1, ':');
if (!value || (header[0] == ':' && header + 1 == value)) {
std::cerr << "-H: invalid header: " << optarg << std::endl;
exit(EXIT_FAILURE);
}
*value = 0;
value++;
while (isspace(*value)) {
value++;
}
if (*value == 0) {
// This could also be a valid case for suppressing a header
// similar to curl
std::cerr << "-H: invalid header - value missing: " << optarg
<< std::endl;
exit(EXIT_FAILURE);
}
// Note that there is no processing currently to handle multiple
// message-header fields with the same field name
config.custom_headers.emplace_back(header, value);
util::inp_strlower(config.custom_headers.back().name);
break;
}
case 'i': {
config.ifile = std::string(optarg);
break;
}
case 'p':
if (util::strieq(NGHTTP2_CLEARTEXT_PROTO_VERSION_ID, optarg)) {
config.no_tls_proto = Config::PROTO_HTTP2;
#ifdef HAVE_SPDYLAY
} else if (util::strieq("spdy/2", optarg)) {
config.no_tls_proto = Config::PROTO_SPDY2;
} else if (util::strieq("spdy/3", optarg)) {
config.no_tls_proto = Config::PROTO_SPDY3;
} else if (util::strieq("spdy/3.1", optarg)) {
config.no_tls_proto = Config::PROTO_SPDY3_1;
#endif // HAVE_SPDYLAY
} else {
std::cerr << "-p: unsupported protocol " << optarg << 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) {
if (config.ifile.empty()) {
std::cerr << "no URI or input file 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);
OPENSSL_config(nullptr);
OpenSSL_add_all_algorithms();
SSL_load_error_strings();
SSL_library_init();
#ifndef NOTHREADS
ssl::LibsslGlobalLock lock;
#endif // NOTHREADS
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_options(ssl_ctx,
SSL_OP_ALL | SSL_OP_NO_SSLv2 | SSL_OP_NO_SSLv3 |
SSL_OP_NO_COMPRESSION |
SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION);
SSL_CTX_set_mode(ssl_ctx, SSL_MODE_AUTO_RETRY);
SSL_CTX_set_mode(ssl_ctx, SSL_MODE_RELEASE_BUFFERS);
if (SSL_CTX_set_cipher_list(ssl_ctx, ssl::DEFAULT_CIPHER_LIST) == 0) {
std::cerr << "SSL_CTX_set_cipher_list failed: "
<< 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);
#if OPENSSL_VERSION_NUMBER >= 0x10002000L
auto proto_list = util::get_default_alpn();
#ifdef HAVE_SPDYLAY
static const char spdy_proto_list[] = "\x8spdy/3.1\x6spdy/3\x6spdy/2";
std::copy(spdy_proto_list, spdy_proto_list + sizeof(spdy_proto_list) - 1,
std::back_inserter(proto_list));
#endif // HAVE_SPDYLAY
SSL_CTX_set_alpn_protos(ssl_ctx, proto_list.data(), proto_list.size());
#endif // OPENSSL_VERSION_NUMBER >= 0x10002000L
std::vector<std::string> reqlines;
if (config.ifile.empty()) {
std::vector<std::string> uris;
std::copy(&argv[optind], &argv[argc], std::back_inserter(uris));
reqlines = parse_uris(std::begin(uris), std::end(uris));
} else {
std::vector<std::string> uris;
if (config.ifile == "-") {
uris = read_uri_from_file(std::cin);
} else {
std::ifstream infile(config.ifile);
if (!infile) {
std::cerr << "cannot read input file: " << config.ifile << std::endl;
exit(EXIT_FAILURE);
}
uris = read_uri_from_file(infile);
}
reqlines = parse_uris(std::begin(uris), std::end(uris));
}
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 != config.default_port) {
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");
// list overridalbe headers
auto override_hdrs =
std::vector<std::string>{":authority", ":host", ":method", ":scheme"};
for (auto &kv : config.custom_headers) {
if (std::find(std::begin(override_hdrs), std::end(override_hdrs),
kv.name) != std::end(override_hdrs)) {
// override header
for (auto &nv : shared_nva) {
if ((nv.name == ":authority" && kv.name == ":host") ||
(nv.name == kv.name)) {
nv.value = kv.value;
}
}
} else {
// add additional headers
shared_nva.push_back(kv);
}
}
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.name, nv.value, false));
}
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.name == ":authority") {
cva.push_back(":host");
} else {
cva.push_back(nv.name.c_str());
}
cva.push_back(nv.value.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();
if (config.nclients == 1) {
config.nthreads = 1;
}
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;
auto start = std::chrono::steady_clock::now();
#ifndef NOTHREADS
std::vector<std::future<Stats>> futures;
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;
auto worker =
util::make_unique<Worker>(i, ssl_ctx, nreqs, nclients, &config);
futures.push_back(std::async(std::launch::async,
[](std::unique_ptr<Worker> worker) {
worker->run();
return worker->stats;
},
std::move(worker)));
}
#endif // NOTHREADS
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();
#ifndef NOTHREADS
for (auto &fut : futures) {
auto stats = fut.get();
worker.stats.req_todo += stats.req_todo;
worker.stats.req_started += stats.req_started;
worker.stats.req_done += stats.req_done;
worker.stats.req_success += stats.req_success;
worker.stats.req_failed += stats.req_failed;
worker.stats.req_error += stats.req_error;
worker.stats.bytes_total += stats.bytes_total;
worker.stats.bytes_head += stats.bytes_head;
worker.stats.bytes_body += stats.bytes_body;
for (size_t i = 0; i < util::array_size(stats.status); ++i) {
worker.stats.status[i] += stats.status[i];
}
}
#endif // NOTHREADS
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_total / 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;
SSL_CTX_free(ssl_ctx);
return 0;
}
} // namespace h2load
int main(int argc, char **argv) { return h2load::main(argc, argv); }
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