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-rw-r--r--src/tools/rbd/action/Bench.cc589
1 files changed, 589 insertions, 0 deletions
diff --git a/src/tools/rbd/action/Bench.cc b/src/tools/rbd/action/Bench.cc
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index 000000000..061a76d33
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+++ b/src/tools/rbd/action/Bench.cc
@@ -0,0 +1,589 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#include "tools/rbd/ArgumentTypes.h"
+#include "tools/rbd/Shell.h"
+#include "tools/rbd/Utils.h"
+#include "common/errno.h"
+#include "common/strtol.h"
+#include "common/ceph_mutex.h"
+#include "include/types.h"
+#include "global/signal_handler.h"
+#include <atomic>
+#include <chrono>
+#include <iostream>
+#include <boost/accumulators/accumulators.hpp>
+#include <boost/accumulators/statistics/stats.hpp>
+#include <boost/accumulators/statistics/rolling_sum.hpp>
+#include <boost/program_options.hpp>
+
+using namespace std::chrono;
+
+static std::atomic<bool> terminating;
+static void handle_signal(int signum)
+{
+ ceph_assert(signum == SIGINT || signum == SIGTERM);
+ terminating = true;
+}
+
+namespace rbd {
+namespace action {
+namespace bench {
+
+namespace at = argument_types;
+namespace po = boost::program_options;
+
+namespace {
+
+enum io_type_t {
+ IO_TYPE_READ = 0,
+ IO_TYPE_WRITE,
+ IO_TYPE_RW,
+
+ IO_TYPE_NUM,
+};
+
+enum io_pattern_t {
+ IO_PATTERN_RAND,
+ IO_PATTERN_SEQ,
+ IO_PATTERN_FULL_SEQ
+};
+
+struct IOType {};
+struct Size {};
+struct IOPattern {};
+
+void validate(boost::any& v, const std::vector<std::string>& values,
+ Size *target_type, int) {
+ po::validators::check_first_occurrence(v);
+ const std::string &s = po::validators::get_single_string(values);
+
+ std::string parse_error;
+ uint64_t size = strict_iecstrtoll(s, &parse_error);
+ if (!parse_error.empty()) {
+ throw po::validation_error(po::validation_error::invalid_option_value);
+ }
+ v = boost::any(size);
+}
+
+void validate(boost::any& v, const std::vector<std::string>& values,
+ IOPattern *target_type, int) {
+ po::validators::check_first_occurrence(v);
+ const std::string &s = po::validators::get_single_string(values);
+ if (s == "rand") {
+ v = IO_PATTERN_RAND;
+ } else if (s == "seq") {
+ v = IO_PATTERN_SEQ;
+ } else if (s == "full-seq") {
+ v = IO_PATTERN_FULL_SEQ;
+ } else {
+ throw po::validation_error(po::validation_error::invalid_option_value);
+ }
+}
+
+io_type_t get_io_type(std::string io_type_string) {
+ if (io_type_string == "read")
+ return IO_TYPE_READ;
+ else if (io_type_string == "write")
+ return IO_TYPE_WRITE;
+ else if (io_type_string == "readwrite" || io_type_string == "rw")
+ return IO_TYPE_RW;
+ else
+ return IO_TYPE_NUM;
+}
+
+void validate(boost::any& v, const std::vector<std::string>& values,
+ IOType *target_type, int) {
+ po::validators::check_first_occurrence(v);
+ const std::string &s = po::validators::get_single_string(values);
+ io_type_t io_type = get_io_type(s);
+ if (io_type >= IO_TYPE_NUM)
+ throw po::validation_error(po::validation_error::invalid_option_value);
+ else
+ v = boost::any(io_type);
+}
+
+} // anonymous namespace
+
+static void rbd_bencher_completion(void *c, void *pc);
+struct rbd_bencher;
+
+struct bencher_completer {
+ rbd_bencher *bencher;
+ bufferlist *bl;
+
+public:
+ bencher_completer(rbd_bencher *bencher, bufferlist *bl)
+ : bencher(bencher), bl(bl)
+ { }
+
+ ~bencher_completer()
+ {
+ if (bl)
+ delete bl;
+ }
+};
+
+struct rbd_bencher {
+ librbd::Image *image;
+ ceph::mutex lock = ceph::make_mutex("rbd_bencher::lock");
+ ceph::condition_variable cond;
+ int in_flight;
+ io_type_t io_type;
+ uint64_t io_size;
+ bufferlist write_bl;
+
+ explicit rbd_bencher(librbd::Image *i, io_type_t io_type, uint64_t io_size)
+ : image(i),
+ in_flight(0),
+ io_type(io_type),
+ io_size(io_size)
+ {
+ if (io_type == IO_TYPE_WRITE || io_type == IO_TYPE_RW) {
+ bufferptr bp(io_size);
+ memset(bp.c_str(), rand() & 0xff, io_size);
+ write_bl.push_back(bp);
+ }
+ }
+
+ void start_io(int max, uint64_t off, uint64_t len, int op_flags, bool read_flag)
+ {
+ {
+ std::lock_guard l{lock};
+ in_flight++;
+ }
+
+ librbd::RBD::AioCompletion *c;
+ if (read_flag) {
+ bufferlist *read_bl = new bufferlist();
+ c = new librbd::RBD::AioCompletion((void *)(new bencher_completer(this, read_bl)),
+ rbd_bencher_completion);
+ image->aio_read2(off, len, *read_bl, c, op_flags);
+ } else {
+ c = new librbd::RBD::AioCompletion((void *)(new bencher_completer(this, NULL)),
+ rbd_bencher_completion);
+ image->aio_write2(off, len, write_bl, c, op_flags);
+ }
+ }
+
+ int wait_for(int max, bool interrupt_on_terminating) {
+ std::unique_lock l{lock};
+ while (in_flight > max && !(terminating && interrupt_on_terminating)) {
+ cond.wait_for(l, 200ms);
+ }
+
+ return terminating ? -EINTR : 0;
+ }
+
+};
+
+void rbd_bencher_completion(void *vc, void *pc)
+{
+ librbd::RBD::AioCompletion *c = (librbd::RBD::AioCompletion *)vc;
+ bencher_completer *bc = static_cast<bencher_completer *>(pc);
+ rbd_bencher *b = bc->bencher;
+ //cout << "complete " << c << std::endl;
+ int ret = c->get_return_value();
+ if (b->io_type == IO_TYPE_WRITE && ret != 0) {
+ std::cout << "write error: " << cpp_strerror(ret) << std::endl;
+ exit(ret < 0 ? -ret : ret);
+ } else if (b->io_type == IO_TYPE_READ && (unsigned int)ret != b->io_size) {
+ std::cout << "read error: " << cpp_strerror(ret) << std::endl;
+ exit(ret < 0 ? -ret : ret);
+ }
+ b->lock.lock();
+ b->in_flight--;
+ b->cond.notify_all();
+ b->lock.unlock();
+ c->release();
+ delete bc;
+}
+
+bool should_read(uint64_t read_proportion)
+{
+ uint64_t rand_num = rand() % 100;
+
+ if (rand_num < read_proportion)
+ return true;
+ else
+ return false;
+}
+
+int do_bench(librbd::Image& image, io_type_t io_type,
+ uint64_t io_size, uint64_t io_threads,
+ uint64_t io_bytes, io_pattern_t io_pattern,
+ uint64_t read_proportion)
+{
+ uint64_t size = 0;
+ image.size(&size);
+ if (io_size > size) {
+ std::cerr << "rbd: io-size " << byte_u_t(io_size) << " "
+ << "larger than image size " << byte_u_t(size) << std::endl;
+ return -EINVAL;
+ }
+
+ if (io_size > std::numeric_limits<uint32_t>::max()) {
+ std::cerr << "rbd: io-size should be less than 4G" << std::endl;
+ return -EINVAL;
+ }
+
+ int r = image.flush();
+ if (r < 0 && (r != -EROFS || io_type != IO_TYPE_READ)) {
+ std::cerr << "rbd: failed to flush: " << cpp_strerror(r) << std::endl;
+ return r;
+ }
+
+ rbd_bencher b(&image, io_type, io_size);
+
+ std::cout << "bench "
+ << " type " << (io_type == IO_TYPE_READ ? "read" :
+ io_type == IO_TYPE_WRITE ? "write" : "readwrite")
+ << (io_type == IO_TYPE_RW ? " read:write=" +
+ std::to_string(read_proportion) + ":" +
+ std::to_string(100 - read_proportion) : "")
+ << " io_size " << io_size
+ << " io_threads " << io_threads
+ << " bytes " << io_bytes
+ << " pattern ";
+ switch (io_pattern) {
+ case IO_PATTERN_RAND:
+ std::cout << "random";
+ break;
+ case IO_PATTERN_SEQ:
+ std::cout << "sequential";
+ break;
+ case IO_PATTERN_FULL_SEQ:
+ std::cout << "full sequential";
+ break;
+ default:
+ ceph_assert(false);
+ break;
+ }
+ std::cout << std::endl;
+
+ srand(time(NULL) % (unsigned long) -1);
+
+ coarse_mono_time start = coarse_mono_clock::now();
+ std::chrono::duration<double> last = std::chrono::duration<double>::zero();
+ uint64_t ios = 0;
+
+ std::vector<uint64_t> thread_offset;
+ uint64_t i;
+ uint64_t seq_chunk_length = (size / io_size / io_threads) * io_size;;
+
+ // disturb all thread's offset
+ for (i = 0; i < io_threads; i++) {
+ uint64_t start_pos = 0;
+ switch (io_pattern) {
+ case IO_PATTERN_RAND:
+ start_pos = (rand() % (size / io_size)) * io_size;
+ break;
+ case IO_PATTERN_SEQ:
+ start_pos = seq_chunk_length * i;
+ break;
+ case IO_PATTERN_FULL_SEQ:
+ start_pos = i * io_size;
+ break;
+ default:
+ break;
+ }
+ thread_offset.push_back(start_pos);
+ }
+
+ const int WINDOW_SIZE = 5;
+ typedef boost::accumulators::accumulator_set<
+ double, boost::accumulators::stats<
+ boost::accumulators::tag::rolling_sum> > RollingSum;
+
+ RollingSum time_acc(
+ boost::accumulators::tag::rolling_window::window_size = WINDOW_SIZE);
+ RollingSum ios_acc(
+ boost::accumulators::tag::rolling_window::window_size = WINDOW_SIZE);
+ RollingSum off_acc(
+ boost::accumulators::tag::rolling_window::window_size = WINDOW_SIZE);
+ uint64_t cur_ios = 0;
+ uint64_t cur_off = 0;
+
+ int op_flags;
+ if (io_pattern == IO_PATTERN_RAND) {
+ op_flags = LIBRADOS_OP_FLAG_FADVISE_RANDOM;
+ } else {
+ op_flags = LIBRADOS_OP_FLAG_FADVISE_SEQUENTIAL;
+ }
+
+ printf(" SEC OPS OPS/SEC BYTES/SEC\n");
+ uint64_t off;
+ int read_ops = 0;
+ int write_ops = 0;
+
+ for (off = 0; off < io_bytes; ) {
+ // Issue I/O
+ i = 0;
+ int r = 0;
+ while (i < io_threads && off < io_bytes) {
+ bool read_flag = should_read(read_proportion);
+
+ r = b.wait_for(io_threads - 1, true);
+ if (r < 0) {
+ break;
+ }
+ b.start_io(io_threads, thread_offset[i], io_size, op_flags, read_flag);
+
+ ++i;
+ ++ios;
+ off += io_size;
+
+ ++cur_ios;
+ cur_off += io_size;
+
+ if (read_flag)
+ read_ops++;
+ else
+ write_ops++;
+ }
+
+ if (r < 0) {
+ break;
+ }
+
+ // Set the thread_offsets of next I/O
+ for (i = 0; i < io_threads; ++i) {
+ switch (io_pattern) {
+ case IO_PATTERN_RAND:
+ thread_offset[i] = (rand() % (size / io_size)) * io_size;
+ continue;
+ case IO_PATTERN_SEQ:
+ if (off < (seq_chunk_length * io_threads)) {
+ thread_offset[i] += io_size;
+ } else {
+ // thread_offset is adjusted to the chunks unassigned to threads.
+ thread_offset[i] = off + (i * io_size);
+ }
+ if (thread_offset[i] + io_size > size) {
+ thread_offset[i] = seq_chunk_length * i;
+ }
+ break;
+ case IO_PATTERN_FULL_SEQ:
+ thread_offset[i] += (io_size * io_threads);
+ if (thread_offset[i] >= size) {
+ thread_offset[i] = i * io_size;
+ }
+ break;
+ default:
+ break;
+ }
+ }
+
+ coarse_mono_time now = coarse_mono_clock::now();
+ std::chrono::duration<double> elapsed = now - start;
+ if (last == std::chrono::duration<double>::zero()) {
+ last = elapsed;
+ } else if ((int)elapsed.count() != (int)last.count()) {
+ time_acc((elapsed - last).count());
+ ios_acc(static_cast<double>(cur_ios));
+ off_acc(static_cast<double>(cur_off));
+ cur_ios = 0;
+ cur_off = 0;
+
+ double time_sum = boost::accumulators::rolling_sum(time_acc);
+ std::cout.width(5);
+ std::cout << (int)elapsed.count();
+ std::cout.width(10);
+ std::cout << ios - io_threads;
+ std::cout.width(10);
+ std::cout << boost::accumulators::rolling_sum(ios_acc) / time_sum;
+ std::cout.width(10);
+ std::cout << byte_u_t(boost::accumulators::rolling_sum(off_acc) / time_sum) << "/s"
+ << std::endl;
+ last = elapsed;
+ }
+ }
+ b.wait_for(0, false);
+
+ if (io_type != IO_TYPE_READ) {
+ r = image.flush();
+ if (r < 0) {
+ std::cerr << "rbd: failed to flush at the end: " << cpp_strerror(r)
+ << std::endl;
+ }
+ }
+
+ coarse_mono_time now = coarse_mono_clock::now();
+ std::chrono::duration<double> elapsed = now - start;
+
+ std::cout << "elapsed: " << (int)elapsed.count() << " "
+ << "ops: " << ios << " "
+ << "ops/sec: " << (double)ios / elapsed.count() << " "
+ << "bytes/sec: " << byte_u_t((double)off / elapsed.count()) << "/s"
+ << std::endl;
+
+ if (io_type == IO_TYPE_RW) {
+ std::cout << "read_ops: " << read_ops << " "
+ << "read_ops/sec: " << (double)read_ops / elapsed.count() << " "
+ << "read_bytes/sec: " << byte_u_t((double)read_ops * io_size / elapsed.count()) << "/s"
+ << std::endl;
+
+ std::cout << "write_ops: " << write_ops << " "
+ << "write_ops/sec: " << (double)write_ops / elapsed.count() << " "
+ << "write_bytes/sec: " << byte_u_t((double)write_ops * io_size / elapsed.count()) << "/s"
+ << std::endl;
+
+ }
+
+ return 0;
+}
+
+void add_bench_common_options(po::options_description *positional,
+ po::options_description *options) {
+ at::add_image_spec_options(positional, options, at::ARGUMENT_MODIFIER_NONE);
+
+ options->add_options()
+ ("io-size", po::value<Size>(), "IO size (in B/K/M/G) (< 4G) [default: 4K]")
+ ("io-threads", po::value<uint32_t>(), "ios in flight [default: 16]")
+ ("io-total", po::value<Size>(), "total size for IO (in B/K/M/G/T) [default: 1G]")
+ ("io-pattern", po::value<IOPattern>(), "IO pattern (rand, seq, or full-seq) [default: seq]")
+ ("rw-mix-read", po::value<uint64_t>(), "read proportion in readwrite (<= 100) [default: 50]");
+}
+
+void get_arguments_for_write(po::options_description *positional,
+ po::options_description *options) {
+ add_bench_common_options(positional, options);
+}
+
+void get_arguments_for_bench(po::options_description *positional,
+ po::options_description *options) {
+ add_bench_common_options(positional, options);
+
+ options->add_options()
+ ("io-type", po::value<IOType>()->required(), "IO type (read, write, or readwrite(rw))");
+}
+
+int bench_execute(const po::variables_map &vm, io_type_t bench_io_type) {
+ size_t arg_index = 0;
+ std::string pool_name;
+ std::string namespace_name;
+ std::string image_name;
+ std::string snap_name;
+ utils::SnapshotPresence snap_presence = utils::SNAPSHOT_PRESENCE_NONE;
+ if (bench_io_type == IO_TYPE_READ)
+ snap_presence = utils::SNAPSHOT_PRESENCE_PERMITTED;
+
+ int r = utils::get_pool_image_snapshot_names(
+ vm, at::ARGUMENT_MODIFIER_NONE, &arg_index, &pool_name, &namespace_name,
+ &image_name, &snap_name, true, snap_presence, utils::SPEC_VALIDATION_NONE);
+ if (r < 0) {
+ return r;
+ }
+
+ uint64_t bench_io_size;
+ if (vm.count("io-size")) {
+ bench_io_size = vm["io-size"].as<uint64_t>();
+ } else {
+ bench_io_size = 4096;
+ }
+ if (bench_io_size == 0) {
+ std::cerr << "rbd: --io-size should be greater than zero." << std::endl;
+ return -EINVAL;
+ }
+
+ uint32_t bench_io_threads;
+ if (vm.count("io-threads")) {
+ bench_io_threads = vm["io-threads"].as<uint32_t>();
+ } else {
+ bench_io_threads = 16;
+ }
+ if (bench_io_threads == 0) {
+ std::cerr << "rbd: --io-threads should be greater than zero." << std::endl;
+ return -EINVAL;
+ }
+
+ uint64_t bench_bytes;
+ if (vm.count("io-total")) {
+ bench_bytes = vm["io-total"].as<uint64_t>();
+ } else {
+ bench_bytes = 1 << 30;
+ }
+
+ io_pattern_t bench_pattern;
+ if (vm.count("io-pattern")) {
+ bench_pattern = vm["io-pattern"].as<io_pattern_t>();
+ } else {
+ bench_pattern = IO_PATTERN_SEQ;
+ }
+
+ uint64_t bench_read_proportion;
+ if (bench_io_type == IO_TYPE_READ) {
+ bench_read_proportion = 100;
+ } else if (bench_io_type == IO_TYPE_WRITE) {
+ bench_read_proportion = 0;
+ } else {
+ if (vm.count("rw-mix-read")) {
+ bench_read_proportion = vm["rw-mix-read"].as<uint64_t>();
+ } else {
+ bench_read_proportion = 50;
+ }
+
+ if (bench_read_proportion > 100) {
+ std::cerr << "rbd: --rw-mix-read should not be larger than 100." << std::endl;
+ return -EINVAL;
+ }
+ }
+
+ librados::Rados rados;
+ librados::IoCtx io_ctx;
+ librbd::Image image;
+ r = utils::init_and_open_image(pool_name, namespace_name, image_name, "",
+ snap_name, false, &rados, &io_ctx, &image);
+ if (r < 0) {
+ return r;
+ }
+
+ init_async_signal_handler();
+ register_async_signal_handler(SIGHUP, sighup_handler);
+ register_async_signal_handler_oneshot(SIGINT, handle_signal);
+ register_async_signal_handler_oneshot(SIGTERM, handle_signal);
+
+ r = do_bench(image, bench_io_type, bench_io_size, bench_io_threads,
+ bench_bytes, bench_pattern, bench_read_proportion);
+
+ unregister_async_signal_handler(SIGHUP, sighup_handler);
+ unregister_async_signal_handler(SIGINT, handle_signal);
+ unregister_async_signal_handler(SIGTERM, handle_signal);
+ shutdown_async_signal_handler();
+
+ if (r < 0) {
+ std::cerr << "bench failed: " << cpp_strerror(r) << std::endl;
+ return r;
+ }
+ return 0;
+}
+
+int execute_for_write(const po::variables_map &vm,
+ const std::vector<std::string> &ceph_global_init_args) {
+ std::cerr << "rbd: bench-write is deprecated, use rbd bench --io-type write ..." << std::endl;
+ return bench_execute(vm, IO_TYPE_WRITE);
+}
+
+int execute_for_bench(const po::variables_map &vm,
+ const std::vector<std::string> &ceph_global_init_args) {
+ io_type_t bench_io_type;
+ if (vm.count("io-type")) {
+ bench_io_type = vm["io-type"].as<io_type_t>();
+ } else {
+ std::cerr << "rbd: --io-type must be specified." << std::endl;
+ return -EINVAL;
+ }
+
+ return bench_execute(vm, bench_io_type);
+}
+
+Shell::Action action_write(
+ {"bench-write"}, {}, "Simple write benchmark. (Deprecated, please use `rbd bench --io-type write` instead.)",
+ "", &get_arguments_for_write, &execute_for_write, false);
+
+Shell::Action action_bench(
+ {"bench"}, {}, "Simple benchmark.", "", &get_arguments_for_bench, &execute_for_bench);
+
+} // namespace bench
+} // namespace action
+} // namespace rbd
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