Two frequently used system calls are ~77% slower on AWS EC2 | Packagecloud BlogTL;DR This blog post dives into an interesting finding: two frequently used system calls (gettimeofday, clock_gettime) are much slower on AWS EC2. Linux provides a mechanism for speeding up those two frequently used system calls by implementing the system call code in userland and avoiding the switch to the kernel entirely. This is done via a virtual shared library provided by the kernel that is m
