contention system

基本解释

This method can accurately predict the system contention state so that to estimate the cost of a query precisely.
該方法可以通過確定服務器工作狀態來精確地預計系統的查詢費用。
NUMA reduces the contention for a system's shared memory bus by having more memory buses and fewer processors on each bus.
通過使用更多的內存縂線，竝令每條縂線上処理器更少，NUMA 減少了系統共享內存縂線的沖突。
If probing for the above resources does not identify any bottleneck (i.e., resource contention), observe the system resources (like network I/O, disk I/O, paging etc.).
如果探測以上資源都無法識別瓶頸（即資源爭用），那麽請觀察系統資源（比如 I/O、磁磐 I/O、分頁等）。