On 02/06/2020 14:56, Claes Redestad wrote:
Hi,
this patch simplifies and improves performance of
UnixFileSystem.normalize and prefixLength, which are used when opening
files. The Windows implementation is left untouched, since it's a bit
more complicated.
Bug: https://bugs.openjdk.java.net/browse/JDK-8246338
Webrev: http://cr.openjdk.java.net/~redestad/8246338/open.00/
On the provided microbenchmark, we see a small (5-10%) speed-up
in peak performance, while the speed-up is quite large when
interpreting, especially in the case where the file path is already
normalized (2.1x)[1]. Since this is the normal case, the patch has a
small but measurable effect on some startup tests.
I think this looks good.
-Alan.
