Tuningcode can be quite expensive when compared against the cost of purchasing additional hardware.
与另外购买硬件的花费相比,代码优化可能是相当昂贵的。
2
Tuning might mean adding memory to a starved system, modifying operating system parameters, hastening the Web or database server, rewriting code for efficiency, or some combination thereof.
Some last minute changes were done in RC2, namely the improvement of the request forgery protection and tuning of the ActiveRecord connection pooling code.