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https://issues.apache.org/jira/browse/FLEX-34999?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Bhaskar G updated FLEX-34999:
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Labels: performance (was: )
> Chart with large dataset hangs and the UI becomes irresponsive
> --------------------------------------------------------------
>
> Key: FLEX-34999
> URL: https://issues.apache.org/jira/browse/FLEX-34999
> Project: Apache Flex
> Issue Type: Bug
> Components: Charts:Interaction, Charts:Multiple Axes
> Affects Versions: Adobe Flex SDK 3.4 (Release)
> Reporter: Bhaskar G
> Priority: Critical
> Labels: performance
> Attachments: Screen Unresponsive.png
>
>
> Flex Version: 3.4
> Component: Line chart.
> Axis: Two linear Y-axis and x-axis as Date Time Axis.
> Problem:
> Irrespective of OS and browsers, the chart and flash stops responding while
> viewing chart with 1 full week of data that contains 6-10 line series for
> each property to view the trend, each line series have 10080 points(Since it
> is date time axis chart each minute have a data point and this is the maximum
> number of data samples for full week range).
> Workaround we tried:
> 1. *Tried not to load all the line series in the chart at the initial load*.
> Instead enable/toggle one series at a timer using timer set to 10 seconds.
> The UI is responsive till 2-3 series enabled with full week of data points,
> after that the chart will start to respond slowly and when it comes to all
> the line series in the chart toggled on, the UI stops responding and sometime
> flash player crashes.
> 2. Break the large data set into two equal halves. Loaded the first half of
> the data in the chart and now chart is responding. But after that while
> loading the second half of the data to each line series using a timer set to
> 10 seconds the UI stops responding and again we see the same issue as we had
> with scenario 1.
> 3. Toggle off all the properties in the initial load and limited the user to
> enable a maximum of 2-3 line series at a time to view in the chart.
> 4. Suggested day mode in Chart, where in the chart is loaded with only single
> day's data points. Each line series will have 1440(Maximum number of sample
> per day for single property). In this scenario the chart is working as usual
> and we don't have performance issue.
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