[OpenJDK Rasterizer] AWT & gcc 4.8 optimization options

[Laurent Bourgès]

Hi,

Just a reminder on this compiler issue.

I tested today the impact of the proposed patch changing compiler options
for AWT on my machine (i7 gcc 4.8.4):

Without patch (clean build - client libs):
EllipseTests-fill-true.ser                       1    25    445.220
445.336    445.196    0.127    444.944    445.543    25

With patch:
EllipseTests-fill-true.ser                       1    26    402.889
403.861    403.134    0.446    402.603    404.294    26

The impact is very important on this test (large mask fills) ~ 10%

Sergey, could you check on gcc 4.9.2 ?

 Laurent

2015-10-21 21:04 GMT+02:00 Sergey Bylokhov <Sergey.Bylokhov at oracle.com>:

> The bug was filed:
> https://bugs.openjdk.java.net/browse/JDK-8140266
>
> I will try a few steps before push the current solution:
> - change the code, so this option will not be necessary.
> - check other compilers, it seems gcc 4.9.2 will be default for jdk9.
>
>
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