mirror of https://github.com/facebook/rocksdb.git
40 lines
1.5 KiB
C
40 lines
1.5 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).
|
||
|
|
|
||
|
|
#pragma once
|
||
|
|
|
||
|
|
namespace rocksdb {
|
||
|
|
// A list of callers for a table reader. It is used to trace the caller that
|
||
|
|
// accesses on a block. This is only used for block cache tracing and analysis.
|
||
|
|
// A user may use kUncategorized if the caller is not interesting for analysis
|
||
|
|
// or the table reader is called in the test environment, e.g., unit test, table
|
||
|
|
// reader benchmark, etc.
|
||
|
|
enum TableReaderCaller : char {
|
||
|
|
kUserGet = 1,
|
||
|
|
kUserMultiGet = 2,
|
||
|
|
kUserIterator = 3,
|
||
|
|
kUserApproximateSize = 4,
|
||
|
|
kUserVerifyChecksum = 5,
|
||
|
|
kSSTDumpTool = 6,
|
||
|
|
kExternalSSTIngestion = 7,
|
||
|
|
kRepair = 8,
|
||
|
|
kPrefetch = 9,
|
||
|
|
kCompaction = 10,
|
||
|
|
// A compaction job may refill the block cache with blocks in the new SST
|
||
|
|
// files if paranoid_file_checks is true.
|
||
|
|
kCompactionRefill = 11,
|
||
|
|
// After building a table, it may load all its blocks into the block cache if
|
||
|
|
// paranoid_file_checks is true.
|
||
|
|
kFlush = 12,
|
||
|
|
// sst_file_reader.
|
||
|
|
kSSTFileReader = 13,
|
||
|
|
// A list of callers that are either not interesting for analysis or are
|
||
|
|
// calling from a test environment, e.g., unit test, benchmark, etc.
|
||
|
|
kUncategorized = 14,
|
||
|
|
// All callers should be added before kMaxBlockCacheLookupCaller.
|
||
|
|
kMaxBlockCacheLookupCaller
|
||
|
|
};
|
||
|
|
} // namespace rocksdb
|