Hello, I have a somewhat large dash app and it is getting slow to update. I have a bunch of controls that all modify how a central graph/plot is displayed. The problem is that each time I modify one of the controls, the plot updates like 100 times instead of just once. My controls are linked to …

Hey @isaaca – Thanks for reporting! I think that we can consider this a bug. Dash should wait until both minsetter and maxsetter are done updating before updating trend_plot. Note how it doesn’t update trend_plot when xchooser changes: this part of the dependency resolver works correctly. It seems …

Any updates yet? Still wondering if this can be fixed for faster updating.

At this point, it’s looking like mid-next week at the earliest.

The fix has been released in dash-renderer v0.9.0. Upgrade with pip install dash-renderer==0.9.0. Thanks again @isaaca for reporting!

Hey @chriddyp - just an FYI, your update looks like it works most* of the time. From my example here ( Many Updates On One Page Load. Dash App ), usually only one callback is now observed: [image] Strangely, sometimes 2 outputs are still thrown: (I can’t seem to find a pattern to it) [image] No…

@emunson - I have another fix in https://github.com/plotly/dash-renderer/pull/21 that might reduce this even further for you. Could you give that a try?

@chriddyp looks about the same. Out of 15 calls I checked, 4 returned doubles. No rhyme or reason I can tell. Really not a huge issue anymore to be honest, just weird [image]

@chriddyp just an update, upgraded to python 3.6, here’s the result: [image] It was just me all along :laughing:

Specifying dependency tree traversal

Dash Python

chriddyp September 7, 2017, 6:16pm 5

Working on a fix in https://github.com/plotly/dash-renderer/pull/19

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Specifying dependency tree traversal

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