Protip:
When designing a user interface, imagine some old woman using it, say Margaret Hamilton, and she's clicking your app's buttons and saying to you, as old people do,
"Young whippersnapper, when I was your age, I sent 24 people to the ACTUAL MOON with my software in 4K of RAM and here I am clicking your button and it takes ten seconds to load a 50 megabyte video ad and then it crashes
I'm not even ANGRY with you, I'm just disappointed."
@ninjawedding i was actually thinking about your scrolling demo when i cc'd you :)
yeah I was really (disproportionately?) happy when that worked the way I wanted it to. I mean it's just scrolling but being able to zoom through tens or hundreds of thousands of items at full framerate and bounded memory is still something I love
@ninjawedding also, maybe https://medium.com/netflix-techblog/netflix-flamescope-a57ca19d47bb would work
@ninjawedding @er1n flame graphs?
@LottieVixen @ninjawedding @er1n profiler output visualization tool, helps you see what functions and system calls your program is spending the most time on
this, or similar (like what erin linked) :
http://www.brendangregg.com/FlameGraphs/cpuflamegraphs.html
@cascode @LottieVixen @ninjawedding the difference with what i posted is that it's very good for monitoring infrequent events
@cascode @ninjawedding @er1n shit this looks cool
first image is an example of a flame graph from the QML profiler; you can see that the majority of total time was spent updating a binding (and, amusingly, there's no sub-operation inside it). you can then look at the timeline to see what that looks like over time, which is useful for analyzing things like "what's causing jank" etc and getting an idea of what that 51.7% of time spent means in terms of frame budget
FlameScope does look cool, I just don't know how to integrate it yet :P
@ninjawedding it has perf(1) support 👀
that could make it really easy then 🤔
actually I think you told me about this before lol
@ninjawedding probably lmao
oh heck this looks awesome, also erm....the delay may be toot.cat fed issues....*sigh*
though tbh similar tools have been in web browsers for quite a while too :)
actually I'd say that browsers have probably some of the best profiling tools out there right now? next to maybe like Instruments, bespoke profiling tools in game engines, and Telemetry, which I have never used but have seen and it looks sick
@ninjawedding @LottieVixen @cascode telemetry is theoretically amazing but it's also probably unfathomably expensive, like so expensive that they just say "contact us if you're interested"
lol me
@ninjawedding @er1n @cascode I mean..... I my debugging so far is print statements.
@er1n @ninjawedding @cascode I would have no idea how to use it.
(or so I hear)
@ninjawedding @er1n @cascode sounds fun :3
