WebbLibrary cache latches function to protect all cached SQL statements as well as the associated object definitions contained within the library cache region in the shared pool of the Oracle SGA. Whenever new statements are added to the library cache area, this type of latch must be acquired by Oracle as part of the operation. http://oracleinaction.com/shared-pool-arch/

Shared pool 共有プール - tigerのうぃき

Webb26 juli 2011 · SHARED POOL LATCHES; Shared pool latch; While the library cache latch protects operations withing the library cache, the shared pool latch is used to protect critical operations when allocating and freeing memory in the shared pool. If an application makes use of literal (unshared) SQL then this can severely limit scalability and throughput. http://tech.e2sn.com/oracle/troubleshooting/latch-contention-troubleshooting how to set up voice mod for vrchat

Latch And Mutex Contention Troubleshooting - Tanel Poder

WebbLet's assume that we have noticed shared pool and library cache latch contention, reported by a Statspack/AWR report or some monitoring tool. Remember what I mentioned earlier - latch and any other lock contention occurs only if someone is already holding the latch while I'm trying to get the same. WebbLatch: shared pool 목차 1 Basic Info 2 Parameter & Wait Time 2.1 Wait Parameters 2.2 Wait Time 3 Check Point & Solution 3.1 서브풀의 사용3.2 Shared Pool의 크기 감소3.3 Cursor Sharing 기법 사용 4 Event Tip 4.1 Shared Pool의 구조4.2 Heap과 heap dump 5 Analysis Case 5.1 CASE1 : Cursor Sharing 기법에 의한 latch: shared pool 대기 감소5.2 … WebbShared pool latch用来保护共享池的结构，在分配，释放共享池空间的时候就会获得该latch，那么在这个案例中，由于共享池太小，在对一个新的SQL进行硬解析的时候需要老化某些对象，为新对象腾出空间，那么这个释放空间的过程就需要获得shared pool latch。 how to set up voice recognition on hp