Withdrawn: 8304442: Allocate VirtualMemoryTracker into Arena

Mon Apr 17 09:49:45 UTC 2023

On Mon, 27 Mar 2023 11:24:38 GMT, Johan Sjölen <jsjolen at openjdk.org> wrote:

> Hi,
> 
> This is a suggestion to allocate the VirtualMemoryTracker memory inside of an Arena instead of on the heap. This reduces the number of NativeCallStacks allocated as VMT doesn't go through os::malloc for each linked list node. It also hopefully increases memory locality, as the nodes are in the best case allocated very close to each other.
> 
> This PR sees a performance improvement in os::commit_memory and reserve_memory of about 10-25%, at no cost to reporting.

This pull request has been closed without being integrated.

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PR: https://git.openjdk.org/jdk/pull/13190