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What is Memory tuning: -XX:ThreadStackSize?

What is Memory tuning: -XX:ThreadStackSize? Have you used this JVM arguement before? What are the pros & cons of using this Java argument? Can you share your perspective/experience in using this JVM argument?

  • jvmargument

  • xx-threadstacksize

  • x-threadstacksize

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Pavel Khodakovsky



You can change the java thread stack size with:


-XX:ThreadStackSize=size, where size is one the amount of memory in kilobytes.




Will set the thread stack size to 1 megabyte:








Sets the Java thread stack size (in kilobytes). Use of a scaling suffix, such as k, results in the scaling of the kilobytes value so that -XX:ThreadStackSize=1k sets the Java thread stack size to 1024*1024 bytes or 1 megabyte. The default value depends on the platform.


Default Value:


Linux/x64 (64-bit): 1024 KB


macOS (64-bit): 1024 KB


Windows: The default value depends on virtual memory






Arguments related:


TODO link UseG1GC, MinHeapFreeRatio, MaxHeapFreeRatio, Xmx, Xms, UseSerialGC, USeParNewGC, UseParallelGC, UseZGC


 Related Posts:



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