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My winforms app needs to run an executable that’s sitting on a share. The exe is about 50MB (it’s a setup.exe type of file). My app will run on many different machines/networks with varying speeds (some fast, but some awfully slow, like barely 10baseT speeds).
Is it better to execute the file straight from the share or is it more efficient to copy it locally and then execute it? I am talking in terms of annoying the user the least.
Locally is better. A copy will read each byte of the file a single time, no more, no less. As you execute, you may revisit code that is out of cache, etc and gets pulled again.
As a setup program, I would assume that the engine will want to do some kind of CRC or other integrity check too, which means it’s reading the entire file anyway.