2014-01-03 08:20:13 +00:00
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#pragma once
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#include <stddef.h>
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/** Позволяет считать количество различных событий, произошедших в программе
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* - для высокоуровневого профайлинга.
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*/
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#define APPLY_FOR_EVENTS(M) \
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M(Query, "Queries") \
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M(SelectQuery, "Select queries") \
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M(InsertQuery, "Insert queries") \
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M(FileOpen, "File opens") \
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M(Seek, "Seeks") \
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M(ReadBufferFromFileDescriptorRead, "ReadBufferFromFileDescriptor reads") \
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M(ReadCompressedBytes, "Read compressed bytes") \
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M(CompressedReadBufferBlocks, "Read decompressed blocks") \
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M(CompressedReadBufferBytes, "Read decompressed bytes") \
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M(UncompressedCacheHits, "Uncompressed cache hits") \
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M(UncompressedCacheMisses, "Uncompressed cache misses") \
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2014-01-04 04:53:07 +00:00
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M(IOBufferAllocs, "IO buffers allocations") \
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M(IOBufferAllocBytes, "IO buffers allocated bytes") \
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M(ArenaAllocChunks, "Arena allocated chunks") \
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M(ArenaAllocBytes, "Arena allocated bytes") \
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M(FunctionExecute, "Function executes") \
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2014-01-03 08:20:13 +00:00
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\
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M(END, "")
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namespace ProfileEvents
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{
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/// Виды событий.
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enum Event
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{
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#define M(NAME, DESCRIPTION) NAME,
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APPLY_FOR_EVENTS(M)
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#undef M
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};
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/// Получить текстовое описание события по его enum-у.
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inline const char * getDescription(Event event)
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{
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static const char * descriptions[] =
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{
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#define M(NAME, DESCRIPTION) DESCRIPTION,
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APPLY_FOR_EVENTS(M)
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#undef M
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};
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return descriptions[event];
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}
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/// Счётчики - сколько раз каждое из событий произошло.
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2014-01-04 11:43:16 +00:00
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extern size_t counters[END];
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2014-01-03 08:20:13 +00:00
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/// Увеличить счётчик события. Потокобезопасно.
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inline void increment(Event event, size_t amount = 1)
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{
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__sync_fetch_and_add(&counters[event], amount);
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}
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}
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#undef APPLY_FOR_EVENTS
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