Not sure to be honest, from a machine perspective 2X should never be a big deal, unless 1.4 was the threshold or sweet state and no one thought too much about scale and architecture beyond that
If you’re the size of GitHub and you’ve been running your infra for years with very little variation in traffic patterns you have a strong incentive to optimise costs for that existing behaviour.
If you’re the size of GitHub and you’ve been running your infra for years with very little variation in traffic patterns you have a strong incentive to optimise costs for that existing behaviour.