Top 10 Performance Problems taken from Zappos, Monster, Thomson and Co

此为转帖：http://www.theserverside.com/news/thread.tss?thread_id=60382

一些被大家公认的性能问题，很值得在构建系统和开发时多多考虑：

#1: Too Many Database Calls,
#2: Synchronized to Death,
#3: Too chatty on the remoting channels,
#4: Wrong usage of O/R-Mappers,
#5: Memory Leaks,
#6: Problematic 3rd Party Code/Components,
#7: Wasteful handling of scarce resources,
#8: Bloated web frontends, 
#9: Wrong Cache Strategy leads to excessive Garbage Collection
#10: Intermittent Problems