Commit Graph

2 Commits (fd4838dc57846ef15b51d23a867874efb93a8eb6)

Author SHA1 Message Date
Josh Bleecher Snyder f013960d87 tstime/mono: make json.Unmarshal of a zero time.Time yield a zero Time
This was the proximate cause of #2579.
#2582 is a deeper fix, but this will remain
as a footgun, so may as well fix it too.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Josh Bleecher Snyder 142670b8c2 tstime/mono: new package
Package mono provides a fast monotonic time.

Its primary advantage is that it is fast:
It is approximately twice as fast as time.Now.
This is because time.Now uses two clock calls,
one for wall time and one for monotonic time.

We ask for the current time 4-6 times per network packet.
At ~50ns per call to time.Now, that's enough to show
up in CPU profiles.

Package mono is a first step towards addressing that.
It is designed to be a near drop-in replacement for package time.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago