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BlockDAG Throughput
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<p>To compare BlockDAG throughput with blockchain, I take Bitcoin and Etherum as the references in the following table, part of dag’s data comes from this presentation: <a href="https://youtu.be/57DCYtk0lWI" target="_blank" rel="noopener">https://youtu.be/57DCYtk0lWI</a> at 32’.<br><table class="table table-striped">
<thead>
<tr>
<th>type</th>
<th>$k$</th>
<th style="text-align:center">$\mathbf{D}_{max}$</th>
<th style="text-align:right">$δ$</th>
<th style="text-align:right">$λ$</th>
<th style="text-align:right">throughput</th>
<th style="text-align:right">bandwidth</th>
<th style="text-align:right">storage</th>
<th style="text-align:right">block size</th>
<th>tx size</th>
</tr>
</thead>
<tbody>
<tr>
<td>Bitcoin</td>
<td>0</td>
<td style="text-align:center">15s</td>
<td style="text-align:right">4.88%</td>
<td style="text-align:right">1 Blk/600s</td>
<td style="text-align:right">~3.33 txn/s</td>
<td style="text-align:right">~1.667 KB/s</td>
<td style="text-align:right">~0.15 GB/Day</td>
<td style="text-align:right">1 MB</td>
<td>~0.5 KB</td>
</tr>
<tr>
<td>Ethereum</td>
<td>0</td>
<td style="text-align:center">15s</td>
<td style="text-align:right">86.47%</td>
<td style="text-align:right">1 Blk/15s</td>
<td style="text-align:right">~15 txn/s</td>
<td style="text-align:right">~1.667 KB/s</td>
<td style="text-align:right">~0.15 GB/Day</td>
<td style="text-align:right">~25 KB</td>
<td>~0.1 KB</td>
</tr>
<tr>
<td>dag A</td>
<td>354</td>
<td style="text-align:center">15s</td>
<td style="text-align:right">1.0‰</td>
<td style="text-align:right">10 Blks/s</td>
<td style="text-align:right">1k txn/s</td>
<td style="text-align:right">0.5 MB/s</td>
<td style="text-align:right">~43.2 GB/Day</td>
<td style="text-align:right">50 KB</td>
<td>0.5 KB</td>
</tr>
<tr>
<td>dag B</td>
<td>1621</td>
<td style="text-align:center">15s</td>
<td style="text-align:right">1.0‰</td>
<td style="text-align:right">50 Blks/s</td>
<td style="text-align:right">10k txn/s</td>
<td style="text-align:right">5 MB/s</td>
<td style="text-align:right">~432 GB/Day</td>
<td style="text-align:right">100 KB</td>
<td>0.5 KB</td>
</tr>
<tr>
<td>dag C</td>
<td>48</td>
<td style="text-align:center">15s</td>
<td style="text-align:right">1.0‰</td>
<td style="text-align:right">1 Blk/s</td>
<td style="text-align:right">1M txn/s</td>
<td style="text-align:right">500 MB/s</td>
<td style="text-align:right">~43.2 TB/Day</td>
<td style="text-align:right">0.5 GB</td>
<td>0.5 KB</td>
</tr>
</tbody>
</table>
<br>
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BlockDAG Blue Selection Algorithm Demo (Golang)
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<p>BlockChain (for example Bitcoin, Etherum, etc.) is just a ‘k=0’ special subtype of BlockDAG, that’s why they suffer from the highly restrictive throughput. DAG is the future!</p>
<p>Blue set selection algorithm is the base of the BlockDAG technology. Thanks Go Playground, to create a new example DAG and run it online to see the DAG blue behaviour, it’s quite easy now. For example, to test a DAG in this figure ‘Fig.4’, just add a piece of codes like this:<br><img src="/images/Fig.4.jpg" alt="Fig.4"><br>
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BlockDAG Blue Selection Algorithm (Rust)
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<p>BlockDAG blue set selection algorithm is the base of the blockDAG technology. The ‘blue set’ means a k-cluster SubDAG, let’s use S denotes it, such that |anticone(B)| ∩ S <= k, for all B ∈ S. We term this selection of a k-cluster a coloring of the DAG, and use the colors ‘blue’ and ‘red’ as a convention for blocks inside and outside the chosen cluster, respectively.</p>
<p>A special subtype of BlockDAG is the ‘0-cluster’ SubDAG, that is, BlockChain! Such as Bitcoin, Etherum, and so on. ‘k=0’ is the exact root cause of BlockChains have the highly restrictive throughput, for example ‘Bitcoin’ throughput is 3-7 transactions per second (tps). BlockDAG is the BlockChain’s future!</p>
<h1 id="How-to-build-a-test"><a href="#How-to-build-a-test" class="headerlink" title="How to build a test?"></a>How to build a test?</h1><p>For example, to run the simulation for the example Fig.3:<br><img src="/images/Fig.3.png" alt="Fig.3"></p>
<figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">$ cargo <span class="built_in">test</span> test_fig3 -- --nocapture</span><br></pre></td></tr></table></figure>
<p>To run the algorithm simulation for an example of generating 1,000,000 random blocks, and execute the blue selection in a real-time calculation:<br>
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