nathan-at-least / bitcoin_load_spike

Stochastic load spike modeling for bitcoin transactions

bitcoin_load_spike

Stochastic load spike modeling for bitcoin transactions

Running

go run run/main.go [--bs <float>] [--nb <int>] [--ns <int>]

--bs the maximum block size for the simulation

--nb number of blocks to create in a single iteration, roughly upperbounds the maximum time before transaction confirmation times are unrecorded by the simulation

--ns number of iterations to repeat using the above parameters, higher = more accurate

Spike Profiles

Custom spike profiles can be defined in the run/main.go file. Spikes are (time, load) pairs where time is the completion percentage [0,1) of the simulation (in terms of block numbers) and load is the percentage [0, infinity) of the maximum TPS (Transactions Per Second) of the network, currently set to 3.5 as per the Bitcoin Traffic Bulletin.

These spikes must occur in increasing order of time, the simulation will validate provided spike profiles and panic if they do not meet the above requirements requirements.

Cumulative Logging

Data generated from each simulation is written to a file named /data/load-spike-%f:%f-%d-%d.cl-dat, where the format specifiers are replaced with the time, load, number of blocks, and number of iterations, respectively.

Each files contains rows corresponding to <bucket-number> | <log-of-txn-confirmation-time> | <probability> | <cumulative-probability>.

Plotting

python plotter.py will accrue all files in the /data folder with the format load-spike-*.dat and attempt to plot them all in a single chart. The resulting chart is then written to /plots/load-spike-cumulatives.png.