Answer: You should use the BPEL process when most steps in the process are sequential, with only limited numberofloops or event handlers.
答：当流程中大多数步骤都顺序执行，而只有数量有限的循环或事件处理程序时，应该使用bpel流程。
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The speed advantage for generated code increases as the numberofloops goes up, starting out at roughly 5:1 with 2k loops and going up to about 24:1 with 512k loops.
The numberofloops shows how resilient a leaf is and is related to how long a leaf lives, since loops provide ways to re-route supplies in the case a leaf gets damaged.