Oh, I'm _soo_ special and pretty and such a delicate flower, that I want to flush the L1D on every task switch
I'll flush the L1 at context switch" is beyond stupid.
Those are not the words of a wisened leader attempting to explain why allowing user space cache eviction is probably not a great idea but some flippant jerk attempting bully his viewpoint by calling other ideas and by proxy submitters stupid.
Linus himself has recognized this behavior is inappropriate and pledged to "get help"
https://www.theregister.com/2018/09/17/linus_torvalds_linux_...
I certainly respect his accomplishments, but just as certainly I don't condone his behavior. Further I feel his rants tell other savants that acting like jerks is perfectly acceptable and just part of open source contributions.
I always find his defenders to be a puzzle. So many believe and champion the cause of open source yet also condone and champion behavior that drives contributors away. As a champion of open source you should want to cultivate more contributors but our community is filled with those that emulate his unacceptable behavior.
Your comment instructing me to toughen up perfectly illustrates why his behavior is contagiously inappropriate. Thanks