603b6da8b8
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
47 lines
1.3 KiB
C++
47 lines
1.3 KiB
C++
// Copyright (c) 2014, Facebook, Inc. All rights reserved.
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// This source code is licensed under the BSD-style license found in the
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// LICENSE file in the root directory of this source tree. An additional grant
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// of patent rights can be found in the PATENTS file in the same directory.
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#include <sstream>
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#include "rocksdb/env.h"
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#include "util/iostats_context_imp.h"
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namespace rocksdb {
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#ifndef IOS_CROSS_COMPILE
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# ifdef _WIN32
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__declspec(thread) IOStatsContext iostats_context;
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# else
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__thread IOStatsContext iostats_context;
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# endif
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#endif // IOS_CROSS_COMPILE
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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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open_nanos = 0;
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allocate_nanos = 0;
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write_nanos = 0;
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read_nanos = 0;
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range_sync_nanos = 0;
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prepare_write_nanos = 0;
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fsync_nanos = 0;
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logger_nanos = 0;
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}
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#define OUTPUT(counter) #counter << " = " << counter << ", "
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std::string IOStatsContext::ToString() const {
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std::ostringstream ss;
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ss << OUTPUT(thread_pool_id) << OUTPUT(bytes_read) << OUTPUT(bytes_written)
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<< OUTPUT(open_nanos) << OUTPUT(allocate_nanos) << OUTPUT(write_nanos)
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<< OUTPUT(read_nanos) << OUTPUT(range_sync_nanos) << OUTPUT(fsync_nanos)
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<< OUTPUT(prepare_write_nanos) << OUTPUT(logger_nanos);
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return ss.str();
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}
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} // namespace rocksdb
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