Add time estimations to Batched Background Migrations

Leonardo da Rosarequested to merge
53-add-bbm-time-estimations into master

Uses metrics from BBM sampling to estimate the time that migrations will take to run in production environment

Adds new info to Background Migrations section:

Estimated Time to complete: 6 months, 3 days, 50 minutes, and 21 seconds

Consider changing max_batch_size and interval if this estimate is unacceptable.

Sampling information
  • Interval: 120s
  • Total tuple count: 76290170
  • Max batch size:
  • Estimated seconds to complete: 16040697s
  • Estimated number of batches: 76290
  • Average batch time: 1.7521625344352616s
  • Batch size: 10
  • Optimized batch size: 1000
  • N. of batches sampled: 726

Changelog: added

Closes #53 (closed)

Edited by Leonardo da Rosa

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