使用libxml2或NSXMLParser在iPhone上更好的性能？ [英] Better performance with libxml2 or NSXMLParser on the iPhone?

问题描述

我很好奇你的解决方案是用于iPhone的高性能XML解析，鉴于其有限的CPU功率。我已经审查了苹果提供的XML性能应用程序作为演示，似乎为数据源（300 iTunes歌曲），他们正在解析.. libxml2总是似乎成为最前沿的赢家。

I'm curious what your solution is for high performance XML parsing on the iPhone is, given its limited amount of CPU power. I have reviewed the XML Performance App that Apple provides as a demonstration, and it seems that for the data feed (300 iTunes songs) that they're parsing.. libxml2 always seem to come as the forefront winner.

您在处理数据的经验< 100Kb，你最喜欢什么最佳性能？我目前使用TouchXML + libxml2，并查看是否可以优化解析速度。

With your experience in dealing with data that's < 100Kb, what do you prefer for optimal performance? I'm currently using TouchXML + libxml2 and looking to see if it's possible to optimize on the parsing speeds as is.

感谢您的反馈！

推荐答案

我一般发现更大的数据块（像你引用的苹果示例）libxml2往往更快。对于较小的数据块，差异可以忽略不计。我喜欢NSXMLParser的一个优点是它是基于Objective-C的XML解析器的实现，其中libxml2是基于C的。

I've generally found for larger chunks of data (like the apple example you reference) libxml2 tends to be faster. For smaller chunks of data, the difference is negligible. One advantage i like about NSXMLParser is that it is an Objective-C based implementation of an XML Parser where libxml2 is C based.

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