The tools and tests used to measure performance are described in the test plan (https://bugs.openjdk.java.net/browse/JDK-8251396)

Since the point of this JEP is to replace a deprecated pipeline we need to be flexible on performance
so the following outlines goals but we have to reserve the right to waive specific performance regressions

Success criteria for performance

- No open P1 or P2 performance bugs

- we expect most performance measures to at least be similar to OpenGL (within 10% on like-for-like h/w)

- we are not blocked by performance regressions that are marginal (5-10%) even if in some widely used case.

- we aren't blocked by performance regressions no matter how large, if it is deemed
 an unimportant/marginal/uncommon case.