1·If you aren't using certain superglobals (such as environment variables), you can safely remove them to gain a small speedup from not having to parse them on every request.
如果您没有使用某种超全局变量（比如环境变量），您可以安全地删除它们来获得一点加速，从而避免在每一个请求上解析它们。
2·The PPE itself provides significant thread scaling, but it is intended to provide control and workload management for the SPEs, which provide much greater speedup for threads.
PPE 本身提供了很好的线程可伸缩性，但是它的主要目的是为 SPE 提供控制和工作负载管理，这会为线程提供大得多的加速效果。
3·I first completed testing using the Pthreaded code just to take a look at the speedup provided by the PPE symmetric multithreading to the Fibonacci worker threads.
我首先使用Pthread代码进行完整的测试，以此了解PPE对称多线程给Fibonacci工作者线程提供的加速效果。
4·The speedup of -O5 over -O3 is 7.33x at n=2000.
O5 在 –O3 的基础上加速的程度是 7.33x 。
5·Where the script initially took about 8.5 seconds to run, after Psyco's "speedup" it ran in about 12 seconds.
原先脚本运行要花费8.5秒，经过Psyco的“加速”后它大概要运行12秒。