Go to your staging environment, use `strace -f -c -p $PID -e trace=clock_gettime` (or don't use -p and just launch the binary directly), replay a bit of production traffic against it, and then interrupt it and check the summary.
HTTP servers typically return a date header, often internally dates are used to figure out expiration and caching, and logging almost always includes dates.
It's incredibly easy to check the numbers of syscalls with strace, so you really should be able to get an intuition fairly easily by just playing around in staging.
Go to your staging environment, use `strace -f -c -p $PID -e trace=clock_gettime` (or don't use -p and just launch the binary directly), replay a bit of production traffic against it, and then interrupt it and check the summary.
HTTP servers typically return a date header, often internally dates are used to figure out expiration and caching, and logging almost always includes dates.
It's incredibly easy to check the numbers of syscalls with strace, so you really should be able to get an intuition fairly easily by just playing around in staging.