Severe invokers performance drop from OpenJDK 7 to OpenJDK 8

Ismael Juma mlists at juma.me.uk
Thu Oct 10 01:44:20 PDT 2013


On Thu, Oct 10, 2013 at 9:32 AM, Julien Ponge <julien.ponge at gmail.com>wrote:

>   * Under OpenJDK 7 or Oracle JDK 7 I get ~0.175s on a machine once the
>     JIT stabilises. It aligns with what you get with a static method
>     dispatch at an invokestatic call site.
>

I think it may be useful to specify which version of OpenJDK 7 was used as
significant differences exist.


>   * Under OpenJDK 8 I get ~0.75s in the same conditions, which is
>     severely slower.
>

Probably useful to say which build was used here too.

Best,
Ismael


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