fxxjdedd opened a new issue #11907: 【dataset性能问题】dataset在series数量过多时性能非常糟糕，甚至会直接崩溃 URL: https://github.com/apache/incubator-echarts/issues/11907 ### Version 4.6.0-rc.1 ### Reproduction link [https://codepen.io/fxxjdedd/pen/OJPgvxZ?editors=1111](https://codepen.io/fxxjdedd/pen/OJPgvxZ?editors=1111) ### Steps to reproduce 分别使用`option`和`optionUsingDataset`这两个配置进行`setOption` ### What is expected? 不应该有非常大的性能差距 ### What is actually happening? 在series超过一定数量（大概100个）后，dataset性能会越来越差，甚至会直接崩溃。 --- 1. https://github.com/apache/incubator-echarts/issues/11806 会跟这条issue有一定的关系 2. 尝试在我的代码里手动把dataset转成original的数据形式，发现性能提升明显，猜测是echarts内部代码问题 3. 如果dataset的确有性能问题，应该在文档里加以描述 <!-- This issue is generated by echarts-issue-helper. DO NOT REMOVE -->
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