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Posted to commits@echarts.apache.org by GitBox <gi...@apache.org> on 2020/09/08 15:04:48 UTC
[GitHub] [incubator-echarts] russkdhd opened a new issue #13249: 使用appendData分多次(每次数据量大概1万5，总数据量大概50万+左右)渲染数据，会导致整个页面很卡顿，cpu达到120%-250%左右！
russkdhd opened a new issue #13249:
URL: https://github.com/apache/incubator-echarts/issues/13249
### Version
4.0
### Steps to reproduce
使用appendData分批加载数据，并且sampling设置为默认，即不做降采样策略，如果做这个的话会影响整体的曲线。
### What is expected?
期望能够顺畅加载，不卡顿
### What is actually happening?
页面很卡顿，导致cpu一直飙涨
### Any additional comments? (optional)
```
function getConfig() {
const legendData = chartData.map(item => item.name);
const yData = [];
for (let index = 0; index < legendData.length; index++) {
yData.push({
name: legendData[index],
type: 'line',
smooth: 0.4,
// sampling: 'average',
connectNulls: true,
showSymbol: false,
hoverAnimation: false,
data: chartData[index].points
})
}
const option = {
title: {
text: selectedKey
},
tooltip: {
trigger: 'axis',
// axisPointer: false,
// animation: false,
padding: 10,
formatter: function (params) {
let res = moment(params[0].axisValue).format('MM-DD HH:mm:ss.SSS') + '<br/>';
for (let i = 0, l = params.length; i < l; i++) {
res += (i === 0 ? '' : '<br />') + params[i].marker + params[i].seriesName + ' : ' + params[i].value[1];
}
return res;
},
axisPointer: {
animation: false
}
},
color: ['blue', 'yellow', 'green'],
legend: {
data: legendData
},
grid: {
left: '3%',
right: '4%',
bottom: '10%',
containLabel: true
},
backgroundColor: 'transparent',
xAxis: {
type: 'time',
axisLabel: {
formatter: (function (value) {
return moment(value).format('MM-DD HH:mm:ss.SSS');
})
}
},
yAxis: [{
type: 'value',
// boundaryGap: [0, '100%'],
// min: 0.98,
// max: 1.1
}],
dataZoom: [{
// startValue: xAxisData[0],
// start: 0,
// end: 100,
filterMode: 'empty',
textStyle: {
color: '#fff'
}
}, {
type: 'inside'
}],
series: yData
};
return option;
}
```
## appendData
```
for (let index = 0; index < chartData.length; index++) {
chartInstanceRef.current.appendData({
seriesIndex: index,
data: chartData[index].points
})
chartInstanceRef.current.resize();
}
```
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[GitHub] [incubator-echarts] russkdhd commented on issue #13249: 使用appendData分多次(每次数据量大概1万5，总数据量50万-150万+)渲染数据，会导致整个页面很卡顿，cpu达到120%-250%左右！
Posted by GitBox <gi...@apache.org>.
russkdhd commented on issue #13249:
URL: https://github.com/apache/incubator-echarts/issues/13249#issuecomment-690078860
@pissang` chartInstanceRef.current.resize(); ` 这个有没有影响？但是如果不加这个appendData后图形没有变化。
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[GitHub] [incubator-echarts] russkdhd commented on issue #13249: 使用appendData分多次(每次数据量大概1万5，总数据量50万-150万+)渲染数据，会导致整个页面很卡顿，cpu达到120%-250%左右！
Posted by GitBox <gi...@apache.org>.
russkdhd commented on issue #13249:
URL: https://github.com/apache/incubator-echarts/issues/13249#issuecomment-693438820
@Ovilia 小姐姐可以帮忙看下这个问题吗？
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