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n_shards = 128 | |
n_simulations = 1_000_000 | |
processed_booted_for_minimum_two_per_shard = [] | |
n_simulations.times do |i| # Number of simulations | |
booted = 0 | |
booted_by_shard = [0] * n_shards | |
done = [false] * n_shards | |
done_count = 0 | |
until done_count == n_shards | |
shard = rand(n_shards) # 'roll the die', or 'boot the process' | |
booted += 1 | |
if (booted_by_shard[shard] += 1) >= 2 && !done[shard] | |
done[shard] = true | |
done_count += 1 | |
end | |
end | |
processed_booted_for_minimum_two_per_shard << booted | |
end | |
processed_booted_for_minimum_two_per_shard.sort! | |
booted = processed_booted_for_minimum_two_per_shard | |
puts "Max: #{booted.max}" | |
puts "Min: #{booted.min}" | |
puts "P50: #{booted[booted.size / 2]}" | |
puts "P99: #{booted[(booted.size / 100 * 99.0).to_i]}" | |
puts "P999: #{booted[(booted.size / 100 * 99.9).to_i]}" | |
puts "P9999: #{booted[(booted.size / 100 * 99.99).to_i]}" | |
# Max: 2829 | |
# Min: 507 | |
# P50: 939 | |
# P99: 1532 | |
# P999: 1849 | |
# P9999: 2167 |
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