Standardize Sidekiq/Rails log keys with _s suffix
What does this MR do?
It's part of the work for gitlab-com/gl-infra/scalability#140 (closed). Here it:
- Replaces
ms
log keys in favor of seconds - Enforces 2 decimals
- Adds documentation on standards for timings logs
https://www.robustperception.io/who-wants-seconds post has some background on why, plus, there's some discussion at gitlab-com/gl-infra/scalability#140 (comment 287053763).
Edited by Oswaldo Ferreira