RFR: 8331117: [PPC64] secondary_super_cache does not scale well

[Andrew Haley]

On Fri, 24 May 2024 09:31:41 GMT, Martin Doerr <mdoerr at openjdk.org> wrote:

> @theRealAph: It would be great if you could take a look and see if you can spot any bug. Especially, I wonder why `r_array_length` happens to be 0 in some cases, but x86 doesn't check.

Why would it not be zero? Some classes don't have secondary super types.
In addition, 12ns is very slow. I don't understand that.

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PR Comment: https://git.openjdk.org/jdk/pull/19368#issuecomment-2133828862