Leave caching off unless you have a performance issue with the Home lookups and you don't have the limiting case described above.
关闭高速缓存，除非用户还有与主机查找相关的性能问题而且没有上面所描述的限制情况。
2
Distracting yourself for a few minutes with something else or, even better putting off the issue until the next day, helps the brain come up with the ideal solution, the study found.