X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=src%2Fceph%2Fsrc%2Ftest%2Ffio%2Ffio_ceph_objectstore.cc;fp=src%2Fceph%2Fsrc%2Ftest%2Ffio%2Ffio_ceph_objectstore.cc;h=0000000000000000000000000000000000000000;hb=7da45d65be36d36b880cc55c5036e96c24b53f00;hp=716e1d6ec59bc7589d0739c2172c75f2b2f25344;hpb=691462d09d0987b47e112d6ee8740375df3c51b2;p=stor4nfv.git

diff --git a/src/ceph/src/test/fio/fio_ceph_objectstore.cc b/src/ceph/src/test/fio/fio_ceph_objectstore.cc
deleted file mode 100644
index 716e1d6..0000000
--- a/src/ceph/src/test/fio/fio_ceph_objectstore.cc
+++ /dev/null
@@ -1,448 +0,0 @@
-// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
-// vim: ts=8 sw=2 smarttab
-/*
- *  Ceph ObjectStore engine
- *
- * IO engine using Ceph's ObjectStore class to test low-level performance of
- * Ceph OSDs.
- *
- */
-
-#include <memory>
-#include <system_error>
-#include <vector>
-
-#include "os/ObjectStore.h"
-#include "global/global_init.h"
-#include "common/errno.h"
-#include "include/intarith.h"
-#include "include/stringify.h"
-#include "common/perf_counters.h"
-
-#include <fio.h>
-#include <optgroup.h>
-
-#include "include/assert.h" // fio.h clobbers our assert.h
-
-#define dout_context g_ceph_context
-#define dout_subsys ceph_subsys_
-
-namespace {
-
-/// fio configuration options read from the job file
-struct Options {
-  thread_data* td;
-  char* conf;
-};
-
-template <class Func> // void Func(fio_option&)
-fio_option make_option(Func&& func)
-{
-  // zero-initialize and set common defaults
-  auto o = fio_option{};
-  o.category = FIO_OPT_C_ENGINE;
-  o.group    = FIO_OPT_G_RBD;
-  func(std::ref(o));
-  return o;
-}
-
-static std::vector<fio_option> ceph_options{
-  make_option([] (fio_option& o) {
-    o.name   = "conf";
-    o.lname  = "ceph configuration file";
-    o.type   = FIO_OPT_STR_STORE;
-    o.help   = "Path to a ceph configuration file";
-    o.off1   = offsetof(Options, conf);
-  }),
-  {} // fio expects a 'null'-terminated list
-};
-
-
-/// global engine state shared between all jobs within the process. this
-/// includes g_ceph_context and the ObjectStore instance
-struct Engine {
-  /// the initial g_ceph_context reference to be dropped on destruction
-  boost::intrusive_ptr<CephContext> cct;
-  std::unique_ptr<ObjectStore> os;
-
-  std::mutex lock;
-  int ref_count;
-
-  Engine(const thread_data* td);
-  ~Engine();
-
-  static Engine* get_instance(thread_data* td) {
-    // note: creates an Engine with the options associated with the first job
-    static Engine engine(td);
-    return &engine;
-  }
-
-  void ref() {
-    std::lock_guard<std::mutex> l(lock);
-    ++ref_count;
-  }
-  void deref() {
-    std::lock_guard<std::mutex> l(lock);
-    --ref_count;
-    if (!ref_count) {
-      ostringstream ostr;
-      Formatter* f = Formatter::create("json-pretty", "json-pretty", "json-pretty");
-      cct->get_perfcounters_collection()->dump_formatted(f, false);
-      ostr << "FIO plugin ";
-      f->flush(ostr);
-      if (g_conf->rocksdb_perf) {
-        os->get_db_statistics(f);
-        ostr << "FIO get_db_statistics ";
-        f->flush(ostr);
-      }
-      delete f;
-      os->umount();
-      dout(0) <<  ostr.str() << dendl;
-    }
-  }
-};
-
-Engine::Engine(const thread_data* td) : ref_count(0)
-{
-  // add the ceph command line arguments
-  auto o = static_cast<const Options*>(td->eo);
-  if (!o->conf) {
-    throw std::runtime_error("missing conf option for ceph configuration file");
-  }
-  std::vector<const char*> args{
-    "-i", "0", // identify as osd.0 for osd_data and osd_journal
-    "--conf", o->conf, // use the requested conf file
-  };
-  if (td->o.directory) { // allow conf files to use ${fio_dir} for data
-    args.emplace_back("--fio_dir");
-    args.emplace_back(td->o.directory);
-  }
-
-  // claim the g_ceph_context reference and release it on destruction
-  cct = global_init(nullptr, args, CEPH_ENTITY_TYPE_OSD,
-			 CODE_ENVIRONMENT_UTILITY, 0);
-  common_init_finish(g_ceph_context);
-
-  // create the ObjectStore
-  os.reset(ObjectStore::create(g_ceph_context,
-                               g_conf->osd_objectstore,
-                               g_conf->osd_data,
-                               g_conf->osd_journal));
-  if (!os)
-    throw std::runtime_error("bad objectstore type " + g_conf->osd_objectstore);
-
-  unsigned num_shards;
-  if(g_conf->osd_op_num_shards)
-    num_shards = g_conf->osd_op_num_shards;
-  else if(os->is_rotational())
-    num_shards = g_conf->osd_op_num_shards_hdd;
-  else
-    num_shards = g_conf->osd_op_num_shards_ssd;
-  os->set_cache_shards(num_shards);
-
-  int r = os->mkfs();
-  if (r < 0)
-    throw std::system_error(-r, std::system_category(), "mkfs failed");
-
-  r = os->mount();
-  if (r < 0)
-    throw std::system_error(-r, std::system_category(), "mount failed");
-}
-
-Engine::~Engine()
-{
-  assert(!ref_count);
-}
-
-
-struct Collection {
-  spg_t pg;
-  coll_t cid;
-  ObjectStore::Sequencer sequencer;
-
-  // use big pool ids to avoid clashing with existing collections
-  static constexpr int64_t MIN_POOL_ID = 0x0000ffffffffffff;
-
-  Collection(const spg_t& pg)
-    : pg(pg), cid(pg), sequencer(stringify(pg)) {
-    sequencer.shard_hint = pg;
-  }
-};
-
-struct Object {
-  ghobject_t oid;
-  Collection& coll;
-
-  Object(const char* name, Collection& coll)
-    : oid(hobject_t(name, "", CEPH_NOSNAP, coll.pg.ps(), coll.pg.pool(), "")),
-      coll(coll) {}
-};
-
-/// treat each fio job like a separate pool with its own collections and objects
-struct Job {
-  Engine* engine; //< shared ptr to the global Engine
-  std::vector<Collection> collections; //< spread objects over collections
-  std::vector<Object> objects; //< associate an object with each fio_file
-  std::vector<io_u*> events; //< completions for fio_ceph_os_event()
-  const bool unlink; //< unlink objects on destruction
-
-  Job(Engine* engine, const thread_data* td);
-  ~Job();
-};
-
-Job::Job(Engine* engine, const thread_data* td)
-  : engine(engine),
-    events(td->o.iodepth),
-    unlink(td->o.unlink)
-{
-  engine->ref();
-  // use the fio thread_number for our unique pool id
-  const uint64_t pool = Collection::MIN_POOL_ID + td->thread_number;
-
-  // create a collection for each object, up to osd_pool_default_pg_num
-  uint32_t count = g_conf->osd_pool_default_pg_num;
-  if (count > td->o.nr_files)
-    count = td->o.nr_files;
-
-  assert(count > 0);
-  collections.reserve(count);
-
-  const int split_bits = cbits(count - 1);
-
-  ObjectStore::Transaction t;
-  for (uint32_t i = 0; i < count; i++) {
-    auto pg = spg_t{pg_t{i, pool}};
-    collections.emplace_back(pg);
-
-    auto& cid = collections.back().cid;
-    if (!engine->os->collection_exists(cid))
-      t.create_collection(cid, split_bits);
-  }
-
-  const uint64_t file_size = td->o.size / max(1u, td->o.nr_files);
-
-  // create an object for each file in the job
-  for (uint32_t i = 0; i < td->o.nr_files; i++) {
-    auto f = td->files[i];
-    f->real_file_size = file_size;
-    f->engine_pos = i;
-
-    // associate each object with a collection in a round-robin fashion
-    auto& coll = collections[i % collections.size()];
-
-    objects.emplace_back(f->file_name, coll);
-    auto& oid = objects.back().oid;
-
-    t.touch(coll.cid, oid);
-    t.truncate(coll.cid, oid, file_size);
-  }
-
-  // apply the entire transaction synchronously
-  ObjectStore::Sequencer sequencer("job init");
-  int r = engine->os->apply_transaction(&sequencer, std::move(t));
-  if (r) {
-   engine->deref();
-    throw std::system_error(r, std::system_category(), "job init");
-  }
-}
-
-Job::~Job()
-{
-  if (unlink) {
-    ObjectStore::Transaction t;
-    // remove our objects
-    for (auto& obj : objects) {
-      t.remove(obj.coll.cid, obj.oid);
-    }
-    // remove our collections
-    for (auto& coll : collections) {
-      t.remove_collection(coll.cid);
-    }
-    ObjectStore::Sequencer sequencer("job cleanup");
-    int r = engine->os->apply_transaction(&sequencer, std::move(t));
-    if (r)
-      derr << "job cleanup failed with " << cpp_strerror(-r) << dendl;
-  }
-  engine->deref();
-}
-
-
-int fio_ceph_os_setup(thread_data* td)
-{
-  // if there are multiple jobs, they must run in the same process against a
-  // single instance of the ObjectStore. explicitly disable fio's default
-  // job-per-process configuration
-  td->o.use_thread = 1;
-
-  try {
-    // get or create the global Engine instance
-    auto engine = Engine::get_instance(td);
-    // create a Job for this thread
-    td->io_ops_data = new Job(engine, td);
-  } catch (std::exception& e) {
-    std::cerr << "setup failed with " << e.what() << std::endl;
-    return -1;
-  }
-  return 0;
-}
-
-void fio_ceph_os_cleanup(thread_data* td)
-{
-  auto job = static_cast<Job*>(td->io_ops_data);
-  td->io_ops_data = nullptr;
-  delete job;
-}
-
-
-io_u* fio_ceph_os_event(thread_data* td, int event)
-{
-  // return the requested event from fio_ceph_os_getevents()
-  auto job = static_cast<Job*>(td->io_ops_data);
-  return job->events[event];
-}
-
-int fio_ceph_os_getevents(thread_data* td, unsigned int min,
-                          unsigned int max, const timespec* t)
-{
-  auto job = static_cast<Job*>(td->io_ops_data);
-  unsigned int events = 0;
-  io_u* u;
-  unsigned int i;
-
-  // loop through inflight ios until we find 'min' completions
-  do {
-    io_u_qiter(&td->io_u_all, u, i) {
-      if (!(u->flags & IO_U_F_FLIGHT))
-        continue;
-
-      if (u->engine_data) {
-        u->engine_data = nullptr;
-        job->events[events] = u;
-        events++;
-      }
-    }
-    if (events >= min)
-      break;
-    usleep(100);
-  } while (1);
-
-  return events;
-}
-
-/// completion context for ObjectStore::queue_transaction()
-class UnitComplete : public Context {
-  io_u* u;
- public:
-  UnitComplete(io_u* u) : u(u) {}
-  void finish(int r) {
-    // mark the pointer to indicate completion for fio_ceph_os_getevents()
-    u->engine_data = reinterpret_cast<void*>(1ull);
-  }
-};
-
-int fio_ceph_os_queue(thread_data* td, io_u* u)
-{
-  fio_ro_check(td, u);
-
-  auto job = static_cast<Job*>(td->io_ops_data);
-  auto& object = job->objects[u->file->engine_pos];
-  auto& coll = object.coll;
-  auto& os = job->engine->os;
-
-  if (u->ddir == DDIR_WRITE) {
-    // provide a hint if we're likely to read this data back
-    const int flags = td_rw(td) ? CEPH_OSD_OP_FLAG_FADVISE_WILLNEED : 0;
-
-    bufferlist bl;
-    bl.push_back(buffer::copy(reinterpret_cast<char*>(u->xfer_buf),
-                              u->xfer_buflen ) );
-
-    // enqueue a write transaction on the collection's sequencer
-    ObjectStore::Transaction t;
-    t.write(coll.cid, object.oid, u->offset, u->xfer_buflen, bl, flags);
-    os->queue_transaction(&coll.sequencer,
-                          std::move(t),
-                          nullptr,
-                          new UnitComplete(u));
-    return FIO_Q_QUEUED;
-  }
-
-  if (u->ddir == DDIR_READ) {
-    // ObjectStore reads are synchronous, so make the call and return COMPLETED
-    bufferlist bl;
-    int r = os->read(coll.cid, object.oid, u->offset, u->xfer_buflen, bl);
-    if (r < 0) {
-      u->error = r;
-      td_verror(td, u->error, "xfer");
-    } else {
-      bl.copy(0, bl.length(), static_cast<char*>(u->xfer_buf));
-      u->resid = u->xfer_buflen - r;
-    }
-    return FIO_Q_COMPLETED;
-  }
-
-  derr << "WARNING: Only DDIR_READ and DDIR_WRITE are supported!" << dendl;
-  u->error = -EINVAL;
-  td_verror(td, u->error, "xfer");
-  return FIO_Q_COMPLETED;
-}
-
-int fio_ceph_os_commit(thread_data* td)
-{
-  // commit() allows the engine to batch up queued requests to be submitted all
-  // at once. it would be natural for queue() to collect transactions in a list,
-  // and use commit() to pass them all to ObjectStore::queue_transactions(). but
-  // because we spread objects over multiple collections, we a) need to use a
-  // different sequencer for each collection, and b) are less likely to see a
-  // benefit from batching requests within a collection
-  return 0;
-}
-
-// open/close are noops. we set the FIO_DISKLESSIO flag in ioengine_ops to
-// prevent fio from creating the files
-int fio_ceph_os_open(thread_data* td, fio_file* f) { return 0; }
-int fio_ceph_os_close(thread_data* td, fio_file* f) { return 0; }
-
-int fio_ceph_os_io_u_init(thread_data* td, io_u* u)
-{
-  // no data is allocated, we just use the pointer as a boolean 'completed' flag
-  u->engine_data = nullptr;
-  return 0;
-}
-
-void fio_ceph_os_io_u_free(thread_data* td, io_u* u)
-{
-  u->engine_data = nullptr;
-}
-
-
-// ioengine_ops for get_ioengine()
-struct ceph_ioengine : public ioengine_ops {
-  ceph_ioengine() : ioengine_ops({}) {
-    name        = "ceph-os";
-    version     = FIO_IOOPS_VERSION;
-    flags       = FIO_DISKLESSIO;
-    setup       = fio_ceph_os_setup;
-    queue       = fio_ceph_os_queue;
-    commit      = fio_ceph_os_commit;
-    getevents   = fio_ceph_os_getevents;
-    event       = fio_ceph_os_event;
-    cleanup     = fio_ceph_os_cleanup;
-    open_file   = fio_ceph_os_open;
-    close_file  = fio_ceph_os_close;
-    io_u_init   = fio_ceph_os_io_u_init;
-    io_u_free   = fio_ceph_os_io_u_free;
-    options     = ceph_options.data();
-    option_struct_size = sizeof(struct Options);
-  }
-};
-
-} // anonymous namespace
-
-extern "C" {
-// the exported fio engine interface
-void get_ioengine(struct ioengine_ops** ioengine_ptr) {
-  static ceph_ioengine ioengine;
-  *ioengine_ptr = &ioengine;
-}
-} // extern "C"