[LibreQoS] Integration system, aka fun with graph theory

Dave Taht dave.taht at gmail.com
Mon Oct 31 17:54:19 EDT 2022

glibc added a vdo mapping directly to the kernel time page, so
gettimeofday is not a syscall, and the results in the linux 4.0-4.2
era were in the 40ns range.

Last I looked, musl used the syscall, which was much, much worse.

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