ref="/2022/01/04/scheduler-performance-part-one">Part one</a> of this blog post briefly introduced the optimizations we’ve made to improve the performance of the scheduler; compared to Flink 1.12, the time cost and memory usage of scheduling large-scale jobs in Flink 1.14 is significantly reduced. In part two, we will elaborate on the details of these optimizations.</p>
<h1 id="reducing-complexity-with-groups">
  Reducing complexity with groups
  <a class="anchor" href="#reducing-complexity-with-groups">#