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From the looks of it, I'm assuming you're using simplexml to load the data. SimpleXML is a memory overkill and it can't be used for large files without exactly this happening. You should instead try using:
- 基于（比第二个更少的内存使用，但更难操作）
- pull基于
- event based SAX parser (less memory usage than the 2nd one, but much harder to operate)
- pull based XMLReader
FYI，我已经使用SAX加载大约200MB XML文件，峰值内存使用大约5MB，所以是的，内存消耗是无法比较的。
FYI, I've been using SAX to load about 200MB XML file with peak memory usage about 5MB, so yes, the memory consumption is uncomparable.
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