or any unexpected occurrences which contradict your
assumption. During performance optimizations, I generally recommend you
to <a href="https://flink.apache.org/news/2020/04/15/flink-serialization-tuning-vol-1.html#disabling-kryo">disable the fallback to
Kryo</a>
and verify where your application might be further optimized by ensuring
that <a href="https://flink.apache.org/news/2020/04/15/flink-serialization-tuning-vol-1.html#performance-comparison">more efficient
serializers</a>
are being used.</p>
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