Yea, this was just a "smoke test", I was trying to get *indicative* data, not scientifically perfect reproducible data. foo.img is unfortunately long gone, but I ISTR it was about 5-6GB.You could add "sync" call to the time, cp does not wait until everything is written so if there is enough ram you are measuring only reading, not writing. And BTW, how big your foo.img file actually is?
Sorry for the lack of precision.

Statistics: Posted by bls — Sun Feb 25, 2024 2:16 pm