The Return of the Frame Pointers
Brendan Gregg
MARCH 16, 2024
To explain this example in more detail: The profiler periodically interrupts software execution, and for those disconnected stacks it happens to be the execution of the kernel software ("vfs*", "ext*", etc.). Java, for example, has the -XX:+PreserveFramePointer option. These partial stacks get grouped together on the left.
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