> whereas on Windows / Mac it is client compiler (c1).
For Mac we only have a 64 bit VM which SFAIK should be c2 as well,
yet in that case native was presumably still faster. So its also a matter
of factoring in how good the code is that is generated by the C compiler.
-phil.
On 4/17/2013 1:26 PM, Richard Bair wrote:
Also, this is with the Java version, right?
Yes, my patch is pure java given as webrev:
http://jmmc.fr/~bourgesl/share/java2d-pisces/webrev-1/
<http://jmmc.fr/%7Ebourgesl/share/java2d-pisces/webrev-1/>
We got a decent 2x speedup in FX by porting the version of Open
Pisces that you started with to C code (all except on Linux where
we couldn't find the right gcc options to make it faster than
Hotspot). So, we have yet to investigate a native version in the
JDK which might provide even more gains…
Oleg did more analysis on this and it appears the reason hotspot on
Linux was faster than the C version was because on Linux it is -server
compiler (c2) whereas on Windows / Mac it is client compiler (c1).
Possibly using -server on windows / mac would also have hotspot
beating the C version, although that hasn't been tested.
Richard
