[Swan-dev] hi resolution time in log file

[D. Hugh Redelmeier]

| From: Andrew Cagney <andrew.cagney at gmail.com>

| As for monotime_t I don't know what it is trying to do so I'll ignore it;
| perhaps clock_gettime(CLOCK_MONOTONIC)?

If I remember (I'm sitting in a waiting room so I don't want to check)

- various clocks can jump backwards on UNIX/LINUX

- this causes all kinds of problems with timeouts observable in the
  Real World

- we detect backward jumps and compensate for them

- unfortunately we have no way to detect forward jumps