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rocksdb/include/leveldb/perf_context.h

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#ifndef STORAGE_LEVELDB_INCLUDE_PERF_CONTEXT_H
#define STORAGE_LEVELDB_INCLUDE_PERF_CONTEXT_H
#include <stdint.h>
namespace leveldb {
// 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
};
extern __thread PerfContext perf_context;
}
#endif