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Referendum 76 & the 500 Validators Milestone in Kusama Network: Performance Report

5 years ago

Kusama is now operating at 500 validators slots. 130 validators are waiting to be included and the total stake percentage is 60,83% - as scheduled. If Referendum 76 is not paused in the near future, there will be an increase of 2 validator slots per era for the next 283 eras.

Find here a full report of the scheduled task and its effects on network metrics, and some overall recommendations.

It is advisable to monitor the amount of validators waiting to validate, as the number of validators slots increases.

Comments (2)

5 years ago

There are a few runtime related concerns as well:

(I am assuming that henceforth you are familiar with how the validator set is being computed offchain and submitted back to the chain. If not, see here: https://www.youtube.com/watch?v=H9OvpAOebTs)

  1. The size of the solution could at some point become too big. Current estimates show that it is well below the 5MB limit, but yet, I. have not done any empirical study on it.
  2. The time it takes to verify the solution is also a concern. This is a pretty expensive operation. You can find it by looking at the blocks in which we emit the SolutionStored event in staking. So far, I have not encountered any block with this event with 6+ block time. Also, with 400 validators this extrinsic was taking almost 25% of the block weight, meaning that we should be fine with 1000 as well. But again, I have not done studies here and just talking out of my anecdotal experience.

5 years ago

just FYI, @kianenigma: I repeated your calculations from the video, and I got similar values.

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