---
title: "Discussion on \"Spark Executor Sizing: Memory Model, Core Tuning, and GC Strategy\" | Hashnode"
description: "Discussion on \"Spark Executor Sizing: Memory Model, Core Tuning, and GC Strategy\". A deep dive into Spark's JVM memory regions, executor core arithmetic, G1GC vs ZGC trade-offs, and the config knobs that actually matter"
url: "https://hashnode.com/posts/spark-executor-sizing-memory-cores-gc-tuning/69e43797f98b558fec73a31f"
---

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# [Spark Executor Sizing: Memory Model, Core Tuning, and GC Strategy](https://abstractalgorithms.hashnode.dev/spark-executor-sizing-memory-cores-gc-tuning?utm_source=hashnode&utm_medium=feed)

A deep dive into Spark's JVM memory regions, executor core arithmetic, G1GC vs ZGC trade-offs, and the config knobs that actually matter

Apr 19 · 37 min read · abstractalgorithms.hashnode.dev  
Updated Jun 18  
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-   [#apache-spark](https://hashnode.com/tag/apache-spark)
-   [#performance-tuning](https://hashnode.com/tag/performance-tuning)
-   [#jvm](https://hashnode.com/tag/jvm)
-   [#gc](https://hashnode.com/tag/gc)
-   [#memory-management](https://hashnode.com/tag/memory-management)
-   [#big-data](https://hashnode.com/tag/big-data)

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