RFR: JDK-8193717: Import resolution performance regression in JDK 9

[Liam Miller-Cushon]

Hi Jan,

Is this patch blocked on anything? I'm looking forward to back-porting it
once it's finalized.

On Fri, Mar 2, 2018 at 10:44 PM Liam Miller-Cushon <cushon at google.com>
wrote:

> Hi Jan,
>
>
>> Liam, could you please check if this helps with your real-world case?
>>
>
> The numbers for the original compilation look great:
> before: avg 299.9s, stddev 56.5s
> after:  avg 155.1s, stddev 24.8s
>
> That compilation is large and is less pathological than the repro in the
> bug (it's not just doing import resolution), so it's not surprising that it
> still takes some time.
>
> Thanks,
> Liam
>
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