我提出 Java申请,但我所期望,申请的速度还不够快。 我已经做了很多改进方法的尝试,但并非 l。
现在,Im审查该守则,发现该守则中有许多个关键词<编码>。 如果他们花了太多时间等待时间,我会想。
是否有任何工具来检查它们花费多少时间? 因此,如果他们花费太多的时间,我就能够找到更好的解决办法。
一位杰出人士将能够确定导致缓慢的方法,而这种方法可能根本与同步。 此外,如果由于同步,等待的时间太长,那么,看看透镜的状态可能暴露出。 无论如何,除非同步关键词毫无理由地加以使用,否则为了履约而撤销该词可能具有反作用。
The cost of synchronization is usually small. The problem is usually what you do in the synchronization blocks. Make sure you don t do any IO, (socket or network) and ideally no system calls at all and the lock time will be sub-microsecond for simple tasks.
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(image credit: aforementioned blog post)