我的SQL Server数据库性能出现问题。我已经找到了此工具sp_BlitzCache。命令执行后,我得到以下语句:
您在过去24小时内创建了92.00%的计划,在过去4小时内创建了92.00%的计划。
在确定问题的同时(使用SQL Server Profiler,我检查了StmtRecompile事件的发生),但我只能找到一些经常被重建的全文本搜索查询。但是,全文搜索查询仅占所有查询的5%。
您有什么建议可能导致其余87%的计划重新生效吗?
我有SQL Server 2012(版本11.0.6567.0)。
编辑:我添加了我的性能计数器
+---------------------------+--------------------------------+--------------+
| object_name | counter_name | cntr_value |
+---------------------------+--------------------------------+--------------+
| SQLServer:Buffer Manager | Background writer pages/sec | 0 |
| SQLServer:Buffer Manager | Buffer cache hit ratio | 28436 |
| SQLServer:Buffer Manager | Buffer cache hit ratio base | 28436 |
| SQLServer:Buffer Manager | Checkpoint pages/sec | 8259452 |
| SQLServer:Buffer Manager | Database pages | 4434337 |
| SQLServer:Buffer Manager | Free list stalls/sec | 9 |
| SQLServer:Buffer Manager | Integral Controller Slope | 0 |
| SQLServer:Buffer Manager | Lazy writes/sec | 5608 |
| SQLServer:Buffer Manager | Page life expectancy | 438901 |
| SQLServer:Buffer Manager | Page lookups/sec | 122694703703 |
| SQLServer:Buffer Manager | Page reads/sec | 60994608 |
| SQLServer:Buffer Manager | Page writes/sec | 126076564 |
| SQLServer:Buffer Manager | Readahead pages/sec | 45305420 |
| SQLServer:Buffer Manager | Target pages | 130990080 |
| SQLServer:Buffer Node | Database pages | 4434337 |
| SQLServer:Buffer Node | Page life expectancy | 438901 |
| SQLServer:Buffer Node | Local node page lookups/sec | 0 |
| SQLServer:Buffer Node | Remote node page lookups/sec | 0 |
| SQLServer:Memory Manager | External benefit of memory | 0 |
| SQLServer:Memory Manager | Connection Memory (KB) | 3304 |
| SQLServer:Memory Manager | Database Cache Memory (KB) | 35474784 |
| SQLServer:Memory Manager | Free Memory (KB) | 13229808 |
| SQLServer:Memory Manager | Granted Workspace Memory (KB) | 0 |
| SQLServer:Memory Manager | Lock Memory (KB) | 455928 |
| SQLServer:Memory Manager | Lock Blocks Allocated | 1798154 |
| SQLServer:Memory Manager | Lock Owner Blocks Allocated | 3568588 |
| SQLServer:Memory Manager | Lock Blocks | 10562 |
| SQLServer:Memory Manager | Lock Owner Blocks | 10617 |
| SQLServer:Memory Manager | Maximum Workspace Memory (KB) | 43368000 |
| SQLServer:Memory Manager | Memory Grants Outstanding | 0 |
| SQLServer:Memory Manager | Memory Grants Pending | 0 |
| SQLServer:Memory Manager | Optimizer Memory (KB) | 1400 |
| SQLServer:Memory Manager | Reserved Server Memory (KB) | 0 |
| SQLServer:Memory Manager | SQL Cache Memory (KB) | 229112 |
| SQLServer:Memory Manager | Stolen Server Memory (KB) | 8063232 |
| SQLServer:Memory Manager | Log Pool Memory (KB) | 4192 |
| SQLServer:Memory Manager | Target Server Memory (KB) | 56934400 |
| SQLServer:Memory Manager | Total Server Memory (KB) | 56767824 |
| SQLServer:Memory Node | Database Node Memory (KB) | 35474784 |
| SQLServer:Memory Node | Free Node Memory (KB) | 13229808 |
| SQLServer:Memory Node | Foreign Node Memory (KB) | 0 |
| SQLServer:Memory Node | Stolen Node Memory (KB) | 8063208 |
| SQLServer:Memory Node | Target Node Memory (KB) | 56934376 |
| SQLServer:Memory Node | Total Node Memory (KB) | 56767800 |
+---------------------------+--------------------------------+--------------+