ClickHouse/dbms/include/DB/Common/ProfileEvents.h

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#pragma once
#include <stddef.h>
/** Позволяет считать количество различных событий, произошедших в программе
* - для высокоуровневого профайлинга.
*/
#define APPLY_FOR_EVENTS(M) \
M(Query) \
M(SelectQuery) \
M(InsertQuery) \
M(FileOpen) \
M(Seek) \
M(ReadBufferFromFileDescriptorRead) \
M(ReadBufferFromFileDescriptorReadBytes) \
M(WriteBufferFromFileDescriptorWrite) \
M(WriteBufferFromFileDescriptorWriteBytes) \
M(ReadBufferAIORead) \
M(ReadBufferAIOReadBytes) \
M(WriteBufferAIOWrite) \
M(WriteBufferAIOWriteBytes) \
M(ReadCompressedBytes) \
M(CompressedReadBufferBlocks) \
M(CompressedReadBufferBytes) \
M(UncompressedCacheHits) \
M(UncompressedCacheMisses) \
M(UncompressedCacheWeightLost) \
M(IOBufferAllocs) \
M(IOBufferAllocBytes) \
M(ArenaAllocChunks) \
M(ArenaAllocBytes) \
M(FunctionExecute) \
M(MarkCacheHits) \
M(MarkCacheMisses) \
M(CreatedReadBufferOrdinary) \
M(CreatedReadBufferAIO) \
M(CreatedWriteBufferOrdinary) \
M(CreatedWriteBufferAIO) \
\
M(ReplicatedPartFetches) \
M(ReplicatedPartFailedFetches) \
M(ObsoleteReplicatedParts) \
M(ReplicatedPartMerges) \
M(ReplicatedPartFetchesOfMerged) \
M(ReplicatedPartChecks) \
M(ReplicatedPartChecksFailed) \
M(ReplicatedDataLoss) \
\
M(DelayedInserts) \
M(RejectedInserts) \
M(DelayedInsertsMilliseconds) \
M(SynchronousMergeOnInsert) \
\
M(ZooKeeperInit) \
M(ZooKeeperTransactions) \
M(ZooKeeperGetChildren) \
M(ZooKeeperCreate) \
M(ZooKeeperRemove) \
M(ZooKeeperExists) \
M(ZooKeeperGet) \
M(ZooKeeperSet) \
M(ZooKeeperMulti) \
M(ZooKeeperExceptions) \
\
M(DistributedConnectionFailTry) \
M(DistributedConnectionFailAtAll) \
\
M(CompileAttempt) \
M(CompileSuccess) \
\
M(END)
namespace ProfileEvents
{
/// Виды событий.
enum Event
{
#define M(NAME) NAME,
APPLY_FOR_EVENTS(M)
#undef M
};
/// Получить текстовое описание события по его enum-у.
inline const char * getDescription(Event event)
{
static const char * descriptions[] =
{
#define M(NAME) #NAME,
APPLY_FOR_EVENTS(M)
#undef M
};
return descriptions[event];
}
/// Счётчики - сколько раз каждое из событий произошло.
extern size_t counters[END];
/// Увеличить счётчик события. Потокобезопасно.
inline void increment(Event event, size_t amount = 1)
{
__sync_fetch_and_add(&counters[event], amount);
}
}
#undef APPLY_FOR_EVENTS