HPROF和IBM转储文件格式都可以通过操作系统工具进行充分压缩，通常能够压缩到它们原始大小的20%。
Both the HPROF and IBM system dump formats can be compressed well, usually to around 20 percent of their original size, using operating-system tools.
因此，被压缩格式的结构与原始 XML 文档的结构不同。
Therefore, the structure of the compressed format is different from the structure of the original XML document.
XML文档的原始结构被保留，您可以使用与原始格式相同的方式访问并解析被压缩的格式(如：xgrind)。
The original structure of the XML document is retained, and you can access and parse the compressed format in the same way as the original format (for example, XGrind).
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