rocksdb/util/compaction_job_stats_impl.cc
Levi Tamasi cb25bc1128 Update compaction statistics to include the amount of data read from blob files (#8022)
Summary:
The patch does the following:
1) Exposes the amount of data (number of bytes) read from blob files from
`BlobFileReader::GetBlob` / `Version::GetBlob`.
2) Tracks the total number and size of blobs read from blob files during a
compaction (due to garbage collection or compaction filter usage) in
`CompactionIterationStats` and propagates this data to
`InternalStats::CompactionStats` / `CompactionJobStats`.
3) Updates the formulae for write amplification calculations to include the
amount of data read from blob files.
4) Extends the compaction stats dump with a new column `Rblob(GB)` and
a new line containing the total number and size of blob files in the current
`Version` to complement the information about the shape and size of the LSM tree
that's already there.
5) Updates `CompactionJobStats` so that the number of files and amount of data
written by a compaction are broken down per file type (i.e. table/blob file).

Pull Request resolved: https://github.com/facebook/rocksdb/pull/8022

Test Plan: Ran `make check` and `db_bench`.

Reviewed By: riversand963

Differential Revision: D26801199

Pulled By: ltamasi

fbshipit-source-id: 28a5f072048a702643b28cb5971b4099acabbfb2
2021-03-04 00:43:48 -08:00

101 lines
2.8 KiB
C++

// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
// This source code is licensed under both the GPLv2 (found in the
// COPYING file in the root directory) and Apache 2.0 License
// (found in the LICENSE.Apache file in the root directory).
#include "rocksdb/compaction_job_stats.h"
namespace ROCKSDB_NAMESPACE {
#ifndef ROCKSDB_LITE
void CompactionJobStats::Reset() {
elapsed_micros = 0;
cpu_micros = 0;
num_input_records = 0;
num_blobs_read = 0;
num_input_files = 0;
num_input_files_at_output_level = 0;
num_output_records = 0;
num_output_files = 0;
num_output_files_blob = 0;
is_full_compaction = false;
is_manual_compaction = false;
total_input_bytes = 0;
total_blob_bytes_read = 0;
total_output_bytes = 0;
total_output_bytes_blob = 0;
num_records_replaced = 0;
total_input_raw_key_bytes = 0;
total_input_raw_value_bytes = 0;
num_input_deletion_records = 0;
num_expired_deletion_records = 0;
num_corrupt_keys = 0;
file_write_nanos = 0;
file_range_sync_nanos = 0;
file_fsync_nanos = 0;
file_prepare_write_nanos = 0;
smallest_output_key_prefix.clear();
largest_output_key_prefix.clear();
num_single_del_fallthru = 0;
num_single_del_mismatch = 0;
}
void CompactionJobStats::Add(const CompactionJobStats& stats) {
elapsed_micros += stats.elapsed_micros;
cpu_micros += stats.cpu_micros;
num_input_records += stats.num_input_records;
num_blobs_read += stats.num_blobs_read;
num_input_files += stats.num_input_files;
num_input_files_at_output_level += stats.num_input_files_at_output_level;
num_output_records += stats.num_output_records;
num_output_files += stats.num_output_files;
num_output_files_blob += stats.num_output_files_blob;
total_input_bytes += stats.total_input_bytes;
total_blob_bytes_read += stats.total_blob_bytes_read;
total_output_bytes += stats.total_output_bytes;
total_output_bytes_blob += stats.total_output_bytes_blob;
num_records_replaced += stats.num_records_replaced;
total_input_raw_key_bytes += stats.total_input_raw_key_bytes;
total_input_raw_value_bytes += stats.total_input_raw_value_bytes;
num_input_deletion_records += stats.num_input_deletion_records;
num_expired_deletion_records += stats.num_expired_deletion_records;
num_corrupt_keys += stats.num_corrupt_keys;
file_write_nanos += stats.file_write_nanos;
file_range_sync_nanos += stats.file_range_sync_nanos;
file_fsync_nanos += stats.file_fsync_nanos;
file_prepare_write_nanos += stats.file_prepare_write_nanos;
num_single_del_fallthru += stats.num_single_del_fallthru;
num_single_del_mismatch += stats.num_single_del_mismatch;
}
#else
void CompactionJobStats::Reset() {}
void CompactionJobStats::Add(const CompactionJobStats& /*stats*/) {}
#endif // !ROCKSDB_LITE
} // namespace ROCKSDB_NAMESPACE