odaymansour

The point of reduced speed is not to avoid killing people when striking them, but to reduce the odds of a driver losing control of a car and ending up on the sidewalk.

Please avoid a harmful tone when replying here, there's no need for that :)

As for the 70 year-olds still running marathons, I've heard of plenty more 25 year-olds dying of heart attacks. Anecdotes are not enough here it seems.

My colleagues who live close to work do not own an unlimited card. You've also got people who commute mainly by bike or scooter and only use the subway due to weather conditions or when going out after work/on weekends.

Thanks for that, I'll take another look at it and see what I've been missing then.

You've also reminded me that while they do show up as CPU time, they wouldn't be 'user' time (for example in the output of the command 'time')

I've identified a memory bandwidth issue in the past by keeping an eye on truss/strace output and "counting" mem operations.

After that, I compiled and ran a tiny executable called Stream[1] and got the numbers I needed in order to explain why one machine was twice as slow as another.

[1] http://www.cs.virginia.edu/stream/