App is very slow with many tasks

[mattenklicker]

I like the tasks app and so I have around 200 tasks. At this number the browser is stuck for several seconds in javascript hell when loading the tasks. Adding/Editing a task is also painful, every letter appears several seconds after typing. To look up tasks in a mobile device is completely impossible.

Are there any plans to improve the scalability?

[raimund-schluessler]

This is a problem with Angular and I am not sure, if or how we can solve this. Maybe it is getting better with Angular2 but I am very unsure about this.

[nachoparker]

same problem here, It is getting really painful.

I might have a look at the source to see if at least I can disable whatever JS is doing while I type.

I do not understand why having many tasks affects the text box. I do not want any JS processing on the textbox as I type.

Before I spend my time diving in... does anybody know the reason behind this? what processing is being done?

[raimund-schluessler]

We might be able to solve this by switching to Vue.js.

[nachoparker]

that would be great. It is borderline unusable. Just out of curiosity, what is the reason that it runs javascript as I type? any quick hack to disable it for the time being?

edit: btw, congrats for the app. It's awesome and I can't live without it

[nachoparker]

Bump

Please, I would like to attract attention to this. It makes the whole app borderline unusable for serious usage (many tasks).

IMHO everything else can wait, because the basics don't work well. Repeating tasks and all the rest looks good but if you can't have a bunch of tasks... what is the point?

Please, prioritize this. Thank you

[raimund-schluessler]

What is "a bunch of" tasks? About how many tasks do we talk (subtasks count as separate task)?

[nachoparker]

hi, thanks for paying attention to this

It has been gradually deteriorating, to the point that now I type the task, and wait 10 seconds for the text to appear.

At this point I have 105 open tasks and 435 completed tasks. I now always delete instead of marking them as complete because I fear that will make things worse. Also, there is no simple way of cleaning up completed tasks ( I think there is a feature request with this ).

Like I said, it does not even let me type. I don't even understand what is the point of the per key hit javascript processing that involves iterating all other tasks.

Thanks again

edit: I guess I could try to delete them from the database, but still the app is broken IMHO

[nachoparker]

Also, I would like to mention that I have 6 'calendars' or 'task lists'. I don't think that affects though

[raimund-schluessler]

Completed tasks are not loaded after a page reload by default. They will only be loaded if you click on "Load remaining completed tasks" below the task list (or if you open their parent task). So, completed tasks are only on the server, but not in the app. This is already for performance reasons and deleting instead of completing tasks will not improve performance. In case completed tasks are loaded for you, please file an issue.

I currently have 40 tasks in the app and it runs smoothly. There is no lag when typing into the task input bar and the task appears quasi immediately when I hit enter. Now, 40 is not 100, but I still wonder why it is so bad for you?!

Edit: Hm, I loaded 200 completed tasks and typing now has a lag.

[nachoparker]

In case completed tasks are loaded for you, please file an issue.

They are not, thanks for the info

still wonder why it is so bad for you?!

Probably because firefox without e10s enabled : S

Still, does not make sense to me that there is any JS processing while you type... what is it for?

I tried to do some basic debugging some time ago, and I found the breakpoint for the code flow when it triggers, but IIRC it was only testing for the escape code, so it didn't look like it was doing much processing.

There's obviously something, I just didn't see it in my quick investigation

Edit: Hm, I loaded 200 completed tasks and typing now has a lag.

Edit: great, first step... able to reproduce!

[damien-rembert]

Probably because firefox without e10s enabled : S

Well I'm using Chrome and it's the same for me (around 150 tasks).