LonHon commented on issue #8277: xAxis.type='time' + zoomData时卡顿问题 URL: https://github.com/apache/incubator-echarts/issues/8277#issuecomment-387601066 @pissang 虽然个人已经解决卡顿问题，还是放上option供你们去寻找原因。 官方demo： http://echarts.baidu.com/examples/editor.html?c=dynamic-data2 电脑配置是小米pro顶配，在数据量4000时会明显卡顿，应该是渲染 series ** showSymbol, hoverAnimation ** 存在问题 代码 ``` function randomData() { now = new Date(+now + oneDay); value = value + Math.random() * 21 - 10; return { name: now.toString(), value: [ [now.getFullYear(), now.getMonth() + 1, now.getDate()].join('/'), Math.round(value) ] } } var data = [], data1 = [], timeline = []; var now = +new Date(1997, 9, 3); var oneDay = 24 * 3600 * 1000; var value = Math.random() * 1000; for (var i = 0; i < 4000; i++) { data.push(randomData()); } option = { title: { text: '动态数据 + 时间坐标轴' }, tooltip: { trigger: 'axis' }, xAxis: { type: 'time' }, yAxis: [{ type: 'value', boundaryGap: [0, '100%'] },{ type: 'value', boundaryGap: [0, '100%'] }], series: [{ name: '模拟数据', type: 'line', data: data }], }; ```
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