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a143ef9b38
Summary: Change namespace from leveldb to rocksdb. This allows a single application to link in open-source leveldb code as well as rocksdb code into the same process. Test Plan: compile rocksdb Reviewers: emayanke Reviewed By: emayanke CC: leveldb Differential Revision: https://reviews.facebook.net/D13287
42 lines
987 B
C++
42 lines
987 B
C++
#ifndef STORAGE_ROCKSDB_INCLUDE_PERF_CONTEXT_H
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#define STORAGE_ROCKSDB_INCLUDE_PERF_CONTEXT_H
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#include <stdint.h>
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namespace rocksdb {
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enum PerfLevel {
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kDisable = 0, // disable perf stats
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kEnableCount = 1, // enable only count stats
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kEnableTime = 2 // enable time stats too
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};
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// set the perf stats level
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void SetPerfLevel(PerfLevel level);
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// A thread local context for gathering performance counter efficiently
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// and transparently.
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struct PerfContext {
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void Reset(); // reset all performance counters to zero
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uint64_t user_key_comparison_count; // total number of user key comparisons
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uint64_t block_cache_hit_count;
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uint64_t block_read_count;
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uint64_t block_read_byte;
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uint64_t block_read_time;
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uint64_t block_checksum_time;
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uint64_t block_decompress_time;
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uint64_t internal_key_skipped_count;
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uint64_t internal_delete_skipped_count;
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};
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extern __thread PerfContext perf_context;
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}
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#include "rocksdb/rocksdb_to_leveldb.h"
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#endif
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