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原帖由 5个周 于 2010-3-17 17:43 发表 ![]()
不要看到spinlock就是螺旋锁争用,cache的spinlock才是螺旋锁争用。
看sybase文档中的说法:
“Spinlock Contention” reports the number of times an engine encountered spinlock contention on the cache, and had to wait, as a percentage of the total spinlock requests for that cache. This is meaningful for SMP environments only.
Spinlock Contention应该翻译成:螺旋锁争用。螺旋锁就是发生在cache上的,是请求查询cache时出现的等待。难道还有其它种类的spinlock contention?? |
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