This is achieved by applying and removing the J2EE context information on and off the thread when the application logic begins and ends.
当应用程序逻辑开始和终止时，这可以通过应用和删除线程内外的J2EE上下文信息来完成。
2
Usually, the bigger the heap, the better the application will perform, so sizing the heap involves trading off the requirements of the application against other demands on the physical memory.
通常，堆大小越大应用程序执行得越好，因此调整堆大小涉及权衡应用程序的要求以及物理内存的其他需求。
3
During that period of time, developers need to turn on and off logging in different areas of the application.