Disable updates for elements that are not visible?

[kj4tmp]

Question

I am debugging some performance issues, and I find that I am updating a lot of elements that are not visible to the user (most of my elements are separated between three ui.tabs). How can I prevent them from being updated by bindings?

Perhaps I should disable ui.timer based on currently selected tab?

[python-and-fiction]

for tabs, you can use ui.tab_panels(keep_alive=False) , it will make tab_panel destroied when it is not selected.

[kj4tmp]

I have found this is not the case, I am still getting websocket messages related to updates for elements in unselected ui.tabs (observed using network developer tools in chrome)

[falkoschindler]

keep_alive is a Vue feature and can reduce memory usage on the client. But the websocket updates are still sent.

[rodja]

We currently sync the full state to the client. Even the hidden elements. Mainly because it is simpler to implement and tracking / resyncing state when it gets visible may lead to very unexpected errors. I suggest you solve this in your application logic. For example by disabling timers.