zmNinja stops responding when Timeline selected (some android devices?)

[Alf626]

zmNinja stops responding when Timeline is selected. Occurs every time, so very reproducible.

zmNinja 1.6.000
Android 10 (Galaxy S10e)
ZoneMinder 1.34.21

[lucasnz]

I get this too - if you click wait it eventually loads... I wonder if we should change the default to 1 hour or something shorter? Also, ideally we'd update the logic so it doesn't lock up the app while loading.

[pliablepixels]

There is a setting in Developer settings where you can reduce the # of events it tries to retrieve. This behavior is device dependent. Max Items for Timeline - reduce it to 500

[lucasnz]

I had to reduce it to 50. But that resolves the issue.. But it probably shouldn't lock up the app.

[pliablepixels]

My guess is it’s happening inside visjs if it’s locking. 50 is way too less. I’m regularly viewing 2000 on my iPhone with 7 monitors 3 of which are on continuous record for 45min segments. They load and render in <4 secs.

[lucasnz]

I set it back to 2000 to test. It appears to render the graph (takes about 2 seconds), then freezes the app for about 15 seconds. Nothing visually changes excepted a snapshot appears. I haven't looked at the code. What happens between after the graph is rendered?

[pliablepixels]

Nothing as far as I know. The entire user interaction is handled by Visjs. There were performance issues I had raised in 2015 that got resolved later. See visjs/vis#1158. Might be time to look at recent versions of visjs

My guess is you are getting locked in touch interactions.

[Alf626]

I had to drop it down to 100, but that did seem to fix the issue. Thanks.

[pliablepixels]

This is troubling. Anything less than 1000 locking up a device is odd. I'll investigate.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.