2016-02-10 00:12:00 +01:00
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// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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2017-07-16 01:03:42 +02:00
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// This source code is licensed under both the GPLv2 (found in the
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// COPYING file in the root directory) and Apache 2.0 License
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// (found in the LICENSE.Apache file in the root directory).
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2014-07-04 01:28:03 +02:00
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#include <sstream>
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2017-04-06 04:02:00 +02:00
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#include "monitoring/iostats_context_imp.h"
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2014-07-04 01:28:03 +02:00
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#include "rocksdb/env.h"
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2020-02-20 21:07:53 +01:00
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namespace ROCKSDB_NAMESPACE {
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2014-07-04 01:28:03 +02:00
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2017-06-27 00:13:35 +02:00
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#ifdef ROCKSDB_SUPPORT_THREAD_LOCAL
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__thread IOStatsContext iostats_context;
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#endif
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2017-06-03 02:12:39 +02:00
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IOStatsContext* get_iostats_context() {
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2017-06-27 00:13:35 +02:00
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#ifdef ROCKSDB_SUPPORT_THREAD_LOCAL
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return &iostats_context;
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#else
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return nullptr;
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#endif
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2017-06-03 02:12:39 +02:00
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}
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2014-07-04 01:28:03 +02:00
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void IOStatsContext::Reset() {
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thread_pool_id = Env::Priority::TOTAL;
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bytes_read = 0;
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bytes_written = 0;
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2015-06-02 11:07:58 +02:00
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open_nanos = 0;
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allocate_nanos = 0;
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write_nanos = 0;
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2015-06-19 20:25:33 +02:00
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read_nanos = 0;
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2015-06-02 11:07:58 +02:00
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range_sync_nanos = 0;
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Add options.compaction_measure_io_stats to print write I/O stats in compactions
Summary:
Add options.compaction_measure_io_stats to print out / pass to listener accumulated time spent on write calls. Example outputs in info logs:
2015/08/12-16:27:59.463944 7fd428bff700 (Original Log Time 2015/08/12-16:27:59.463922) EVENT_LOG_v1 {"time_micros": 1439422079463897, "job": 6, "event": "compaction_finished", "output_level": 1, "num_output_files": 4, "total_output_size": 6900525, "num_input_records": 111483, "num_output_records": 106877, "file_write_nanos": 15663206, "file_range_sync_nanos": 649588, "file_fsync_nanos": 349614797, "file_prepare_write_nanos": 1505812, "lsm_state": [2, 4, 0, 0, 0, 0, 0]}
Add two more counters in iostats_context.
Also add a parameter of db_bench.
Test Plan: Add a unit test. Also manually verify LOG outputs in db_bench
Subscribers: leveldb, dhruba
Differential Revision: https://reviews.facebook.net/D44115
2015-08-13 02:24:45 +02:00
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prepare_write_nanos = 0;
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fsync_nanos = 0;
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2015-06-02 11:07:58 +02:00
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logger_nanos = 0;
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2014-07-04 01:28:03 +02:00
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}
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2016-02-23 19:26:24 +01:00
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#define IOSTATS_CONTEXT_OUTPUT(counter) \
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if (!exclude_zero_counters || counter > 0) { \
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ss << #counter << " = " << counter << ", "; \
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}
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2014-07-04 01:28:03 +02:00
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2016-02-23 19:26:24 +01:00
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std::string IOStatsContext::ToString(bool exclude_zero_counters) const {
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2014-07-04 01:28:03 +02:00
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std::ostringstream ss;
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2016-02-23 19:26:24 +01:00
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IOSTATS_CONTEXT_OUTPUT(thread_pool_id);
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IOSTATS_CONTEXT_OUTPUT(bytes_read);
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IOSTATS_CONTEXT_OUTPUT(bytes_written);
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IOSTATS_CONTEXT_OUTPUT(open_nanos);
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IOSTATS_CONTEXT_OUTPUT(allocate_nanos);
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IOSTATS_CONTEXT_OUTPUT(write_nanos);
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IOSTATS_CONTEXT_OUTPUT(read_nanos);
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IOSTATS_CONTEXT_OUTPUT(range_sync_nanos);
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IOSTATS_CONTEXT_OUTPUT(fsync_nanos);
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IOSTATS_CONTEXT_OUTPUT(prepare_write_nanos);
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IOSTATS_CONTEXT_OUTPUT(logger_nanos);
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2015-06-02 11:07:58 +02:00
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2019-09-03 20:21:47 +02:00
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std::string str = ss.str();
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str.erase(str.find_last_not_of(", ") + 1);
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return str;
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2014-07-04 01:28:03 +02:00
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}
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2020-02-20 21:07:53 +01:00
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} // namespace ROCKSDB_NAMESPACE
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