I am doing so memory analysis for our project there is excessive usage of memory.
This is what I got when I did a deep analysis.
I have recently found that minifing large minified files via ScriptBundle can cause excessive memory usage.
In my case changing
From:bundles.Add(new ScriptBundle("~/Bundles/Scripts/").Include(....
To:bundles.Add(new Bundle("~/Bundles/Scripts/").Include(....
Reduced my memory usage by around 300mb.
Long term this obviously isn't a great solution, and you should probably move to another solution ("Gulp" or "Bower"), but this may be enough to get through the next release or two.
来源：https://stackoverflow.com/questions/27980800/system-web-optimization-assetmanager-increases-memory-usage