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2,660PÀû¸³ (10%)
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Part 1. OWI ¼Ò°³ - OWI ¼Ò°³ OWI¶õ? OWIÀÇ Æ¯Â¡ OWI Åø OWI µ¥ÀÌÅÍ ¼öÁý ±âŸ - ·¡Ä¡(Latch)¿Í ¶ô(Lock) ¿À¶óŬÀÇ µ¿±âÈ ¸ÞÄ¿´ÏÁò ·¡Ä¡(Latch) ¶ô(Lock) - ¿À¶óŬ ³»ºÎ±¸Á¶¿Í OWI ¹öÆÛ ij½Ã¿Í OWI Shared Pool / Library Cache OWI Æ®·£Àè¼Ç°ú OWI ¼¼±×¸ÕÆ®¿Í OWI I/O¿Í OWI ¸®µÎ¿Í OWI Part 2. °³º° ´ë±â À̺¥Æ® - ¹öÆÛ ij½Ã(Buffer Cache)¿¡¼ÀÇ ´ë±â À̺¥Æ®µé latch : cache buffers chains latch : cache buffers lru chain buffer busy waits / read by other session write complete waits free buffer waits enq : TC - contention enq : CI - contention, enq : RO - contention - Library Cache¿¡¼ÀÇ ´ë±âÀ̺¥Æ®µé latch : shared pool latch : library cache livrary cache lock°ú Library cache pin - Row Cache¿¡¼ÀÇ ´ë±âÀ̺¥Æ®µé row cache lock enq : SQ - contention, DFS lock handle(SV) - Æ®·£Àè¼Ç(Transaction)¿¡¼ÀÇ ´ë±âÀ̺¥Æ®µé enq : TM - conte ...ntion
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