mirror of
https://github.com/XRPLF/rippled.git
synced 2025-12-06 17:27:55 +00:00
2fb361ad98
Summary: as title Test Plan: make check; ./perf_context_test Reviewers: dhruba Reviewed By: dhruba CC: leveldb Differential Revision: https://reviews.facebook.net/D13629
44 lines
1.5 KiB
C++
44 lines
1.5 KiB
C++
#ifndef STORAGE_ROCKSDB_INCLUDE_PERF_CONTEXT_H
|
|
#define STORAGE_ROCKSDB_INCLUDE_PERF_CONTEXT_H
|
|
|
|
#include <stdint.h>
|
|
|
|
namespace rocksdb {
|
|
|
|
enum PerfLevel {
|
|
kDisable = 0, // disable perf stats
|
|
kEnableCount = 1, // enable only count stats
|
|
kEnableTime = 2 // enable time stats too
|
|
};
|
|
|
|
// set the perf stats level
|
|
void SetPerfLevel(PerfLevel level);
|
|
|
|
// A thread local context for gathering performance counter efficiently
|
|
// and transparently.
|
|
|
|
struct PerfContext {
|
|
|
|
void Reset(); // reset all performance counters to zero
|
|
|
|
uint64_t user_key_comparison_count; // total number of user key comparisons
|
|
uint64_t block_cache_hit_count; // total number of block cache hits
|
|
uint64_t block_read_count; // total number of block reads (with IO)
|
|
uint64_t block_read_byte; // total number of bytes from block reads
|
|
uint64_t block_read_time; // total time spent on block reads
|
|
uint64_t block_checksum_time; // total time spent on block checksum
|
|
uint64_t block_decompress_time; // total time spent on block decompression
|
|
// total number of internal keys skipped over during iteration (overwritten or
|
|
// deleted, to be more specific, hidden by a put or delete of the same key)
|
|
uint64_t internal_key_skipped_count;
|
|
// total number of deletes skipped over during iteration
|
|
uint64_t internal_delete_skipped_count;
|
|
uint64_t wal_write_time; // total time spent on writing to WAL
|
|
};
|
|
|
|
extern __thread PerfContext perf_context;
|
|
|
|
}
|
|
|
|
#endif
|