fe5c6321cb
Summary:
Allow EventListener::OnCompactionCompleted to return CompactionJobStats,
which contains useful information about a compaction.
Example CompactionJobStats returned by OnCompactionCompleted():
smallest_output_key_prefix 05000000
largest_output_key_prefix 06990000
elapsed_time 42419
num_input_records 300
num_input_files 3
num_input_files_at_output_level 2
num_output_records 200
num_output_files 1
actual_bytes_input 167200
actual_bytes_output 110688
total_input_raw_key_bytes 5400
total_input_raw_value_bytes 300000
num_records_replaced 100
is_manual_compaction 1
Test Plan: Developed a mega test in db_test which covers 20 variables in CompactionJobStats.
Reviewers: rven, igor, anthony, sdong
Reviewed By: sdong
Subscribers: tnovak, dhruba, leveldb
Differential Revision: https://reviews.facebook.net/D38463
45 lines
949 B
C++
45 lines
949 B
C++
// Copyright (c) 2013, 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 <cstring>
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#include "include/rocksdb/compaction_job_stats.h"
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namespace rocksdb {
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#ifndef ROCKSDB_LITE
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void CompactionJobStats::Reset() {
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elapsed_micros = 0;
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num_input_files = 0;
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num_input_files_at_output_level = 0;
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num_output_files = 0;
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num_input_records = 0;
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num_output_records = 0;
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total_input_bytes = 0;
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total_output_bytes = 0;
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total_input_raw_key_bytes = 0;
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total_input_raw_value_bytes = 0;
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num_records_replaced = 0;
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is_manual_compaction = 0;
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smallest_output_key_prefix[0] = 0;
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largest_output_key_prefix[0] = 0;
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}
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#else
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void CompactionJobStats::Reset() {
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}
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#endif // !ROCKSDB_LITE
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} // namespace rocksdb
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