https://tsvinc.dev/tags/connection-pool/ Recent content in Connection-Pool on tsvinc Hugo en-us Tue, 07 Jul 2026 00:00:00 +0000 https://tsvinc.dev/posts/eight-connections-zero-available/ Tue, 07 Jul 2026 00:00:00 +0000 https://tsvinc.dev/posts/eight-connections-zero-available/ <p><em>Part 18 of <a href="https://tsvinc.dev/series/micronaut-256mb/">the Micronaut native image series</a>. Follows <a href="https://tsvinc.dev/posts/28-apis-same-throughput/">Part 17</a>, which found that reactive and imperative produced identical throughput on the 28-API workload. Assumes familiarity with R2DBC and Project Reactor.</em></p> <h2 id="608-and-599">60.8 and 59.9</h2> <p>Two frameworks. Different HTTP servers, different dependency trees, different teams maintaining them. Under load, both reactive stacks land at almost the same throughput:</p> <table> <thead> <tr> <th>Framework</th> <th>Model</th> <th>Runtime</th> <th>Mem</th> <th>rps</th> <th>p95</th> <th>k6 errors</th> </tr> </thead> <tbody> <tr> <td>Micronaut</td> <td>Reactive</td> <td>Native</td> <td>128 MB</td> <td>60.8</td> <td>15000.6 ms</td> <td>14.1%</td> </tr> <tr> <td>Spring Boot</td> <td>Reactive</td> <td>Native</td> <td>128 MB</td> <td>59.9</td> <td>13548.7 ms</td> <td>2.0%</td> </tr> <tr> <td>Micronaut</td> <td>Imperative</td> <td>Native</td> <td>256 MB</td> <td>251.9</td> <td>2554.8 ms</td> <td>0%</td> </tr> <tr> <td>Spring Boot</td> <td>Imperative</td> <td>Native</td> <td>256 MB</td> <td>220.6</td> <td>2588.9 ms</td> <td>0%</td> </tr> <tr> <td>Quarkus</td> <td>Reactive</td> <td>Native</td> <td>256 MB</td> <td>258.7</td> <td>—</td> <td>0%</td> </tr> </tbody> </table> <p>Imperative hits 220–252. Quarkus reactive hits 259. Micronaut and Spring Boot reactive: 60.</p>