[crac] RFR: Resize ForkJoinPool and some concurrent data structures

[Anton Kozlov]

On Thu, 23 Mar 2023 16:10:44 GMT, Radim Vansa <duke at openjdk.org> wrote:

> Some parts of JDK expect that #cpus is constant; update those places after restore.

>From a purely technical point of view, backporting those changes from upstream provides the CRaC implementation better understood, tested, etc.

Imaging we have a space like crac-17u (jdk17u with CRaC changes), and a policy allowing backporting something extra compared to jdk17u, would we need a special CRaC version to resize FJP or backports would be enough?

>From a purely technical point of view, backporting those changes from upstream provides the CRaC implementation better understood, tested, etc.

Imaging we have a space like crac-17u (jdk17u with CRaC changes), and a policy allowing backporting something extra compared to jdk17u, would we need a special CRaC version to resize FJP or backports would be enough?

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PR Comment: https://git.openjdk.org/crac/pull/54#issuecomment-1485054289
PR Comment: https://git.openjdk.org/crac/pull/54#issuecomment-1485054744