reased memory usage when the table resizes. Indeed, both tables have a peak memory usage that is significantly higher than the memory usage seen between insertions.</p>
<p>In the case of Abseil's <em>flat_hash_map</em>, the values are stored directly in a memory array. The memory usage is constant until the table needs to resize, which is why we see these horizontal sections of memory usage.</p>
<p>When the <em>flat_hash_map</em> reaches 87.5% occupancy, a new array of twice the size is allocated, the value