Re:We reduced our iOS app launch time by 60%
by thdc on Tuesday February 07, 2023 @11:53AM
(#34695221)
Yes, and specifically because I believe startup time to be a rare occurrence when using an app.
According to a talk I found [here](https://developer.apple.com/videos/play/wwdc2019/423/): there are three types of launches; cold, warm, and hot. Warm is what's typically profiled and occurs when the app has been run at least once but has been closed since, while hot launches are what occur when bringing an app to the foreground. I assume warm launches are what are being profiled.
I don't have any statistics, but my observation is that most people do not exit out of apps and instead just background them, which suggests warm launches are relatively rare if my understanding of which state triggers which type of launch is correct.
According to a talk I found [here](https://developer.apple.com/videos/play/wwdc2019/423/): there are three types of launches; cold, warm, and hot. Warm is what's typically profiled and occurs when the app has been run at least once but has been closed since, while hot launches are what occur when bringing an app to the foreground. I assume warm launches are what are being profiled.
I don't have any statistics, but my observation is that most people do not exit out of apps and instead just background them, which suggests warm launches are relatively rare if my understanding of which state triggers which type of launch is correct.