speed of simple loops: comparison to other language
Tom Rodriguez
tom.rodriguez at oracle.com
Thu Jul 1 12:00:40 PDT 2010
> no need to kill someone :)
> jdk7 has a 64bit client VM.
> http://bugs.sun.com/view_bug.do?bug_id=6459804
>
>
> This looks great, I didn't notice it because I'm on Windows and the 64-bit Client VM is not yet available for that platform. I guess it is for Linux (which 64-bit JDK download is just as big as the 32-bit one, differently from Windows which 64-bit build is 9Mb smaller because it doesn't include Client).
>
> Well, I guess just need to wait a few more builds until C1 comes to Win64?
We'll never ship a stand alone 64 bit client vm. 64 C1 is going to be used as part of a tiered system with both client and server in the same binary so you'll get good startup and good peak performance.
> Hopefully that will also have UseCompressedOops on by default when heap size is sufficiently "small", otherwise 64-bit applets or JAWS apps will remain overweight...
C1 doesn't currently support compressed oops but it will eventually in the tiered system.
tom
>
> While we're at this, any idea if Oracle plans to solve the problem of double isolation of plugin2 in new browsers? (Latest versions of most browsers already isolate native plugins in separate processes, so the extra isolation created by plugin2 has become redundant and just adds overhead.)
>
> A+
> Osvaldo
More information about the hotspot-compiler-dev
mailing list