Unsafe: efficiently comparing two byte arrays

[Ulf Zibis]

Am 28.02.2014 23:29, schrieb Martin Buchholz:
> Are word-size reads in ByteBuffer actually intrinsified?  I could find no
> evidence for that.  Perhaps this is an important missing optimization for
> hotspot to make?
>
> I see DirectByteBuffer, but not garden-variety ByteBuffer, using Unsafe.
> share/classes/java/nio/Direct-X-Buffer.java.template
>
> Probably should be investigated using disassembly of jitted code, which I
> have never done.

See also:
https://bugs.openjdk.java.net/browse/JDK-6914113

-Ulf