tor/changes/ticket25927.1

  o Minor features (timekeeping, circuit scheduling):
    - When keeping track of how busy each circuit have been recently on
      a given connection, use coarse-grained monotonic timers rather than
      gettimeofday(). This change should marginally increase accuracy
      and performance.  Implements part of ticket 25927.
Rewrite time-handling in circuitmux_ewma to use monotime_coarse This part of the code was the only part that used "cached getttimeofday" feature, which wasn't monotonic, which we updated at slight expense, and which I'd rather not maintain. 2018-04-26 16:18:39 +02:00			`o Minor features (timekeeping, circuit scheduling):`
			`- When keeping track of how busy each circuit have been recently on`
			`a given connection, use coarse-grained monotonic timers rather than`
			`gettimeofday(). This change should marginally increase accuracy`
			`and performance. Implements part of ticket 25927.`