Memory Issue

[CoderCMY]

After transfer png to webp format image，Our App memory increase too much like the attachments below，I don't know why and how to fix it，Please give me some advise e .

[yeatse]

You can limit the memory cache used by Kingfisher following the instructions from Kingfisher Cheat-Sheet:

// Limit memory cache size to 20MB
ImageCache.default.memoryStorage.config.totalCostLimit = 20 * 1024 * 1024

Feel free to feedback if it doesn't work.

[CoderCMY]

You can limit the memory cache used by Kingfisher following the instructions from Kingfisher Cheat-Sheet:

// Limit memory cache size to 20MB
ImageCache.default.memoryStorage.config.totalCostLimit = 20 * 1024 * 1024

Feel free to feedback if it doesn't work.

I Just try many times , unfortunately It doesn't work ，My Image Limit Code is Like Below， I Don't Understand what caused the Memory rise too much once using webp format image when use the same configuration，If you find something please tell me.

    // 限制Kingfisher的内存和磁盘空间
    func configImageLimit(didReceiveMemoryWarning: Bool = false) {
        // 允许的内存缓存最大值
        var memoryCostLimit: Int = Int(ProcessInfo.processInfo.physicalMemory / 25)
        if didReceiveMemoryWarning {
        // 收到内存警告时，内存缓存减半
                memoryCostLimit = memoryCostLimit / 2
        } else {
            // 磁盘缓存最大值 150 MB
                ImageCache.default.diskStorage.config.sizeLimit = 150 * 1024 * 1024
        }
        // 内存缓存最大值
        ImageCache.default.memoryStorage.config.totalCostLimit = memoryCostLimit
    }
```

[yeatse]

If your app's memory usage hardly goes far above 200MB, there should not be any issue here because 1/25 of your iPhone 11's physical memory is already 160MB, which you set as the cache limit.

Unlike png images which are decoded using iPhone's hardware, a webp image has to be rendered into a CGContext before being presented on screen, so there should indeed be more memory usage than png ones. It is behaving as intended.

[yeatse]

I also noticed that from iOS 14 webp format has a built-in support. We're planning to implement this feature to reduce the memory footprint in iOS 14 devices.

[gugges]

@Yeatse One thing I have observed is that scroll performance takes a major hit with iOS 14 built-in webp support. It seems like Apple is decoding webp to UIImage on the main thread when set on a UIImageView. There are other people who have noticed this as well: https://github.com/SDWebImage/SDWebImage/issues/3132

[abhi21git]

I noticed some memory leaks in this library when used Instruments