Comment by torginus
3 years ago
I don't think all this should be relevant - once it was launched at least one time, the OS should be able to tell that the binary hasn't changed, and thus signature verification is not necessary.
The comparison is using OS X 10.6 - I used to daily drive it and it was pretty snappy on my machine - which is corroborated by this guy's Twitter video capture.
As for Windows performance - Notepad/File Explorer might be slower than strictly necessary, but one of the advantages of Windows' backwards compatibility, is that I keep using the same stuff - Total Commander and Notepad++, that I used from the dawn of time, and those things haven't gotten slow (or haven't changed lol).
Assuming the binary on the disk hasn't changed opens to time of use type attacks, where an "evil disk" is substituted that changes the binary after the first load. (Or, more likely, some sort of rootkit)
Unlikely, yes, but that sort of thing comes up in security reviews.
Check it with a cryptographic hash. With I/O bottleneck, and assuming a SSD at 300 MB/s, that should bring the latency to 3 ms, well below human perception. Even the 60 MB/s of slow HDDs should be more than fine.
Anyone who has worked on optimizing complex programs knows that you can do a lot with a computer. > 100 ms latency to open Notepad is just ridiculous.