On Wed, 4 Sep 2024 22:41:38 GMT, Chen Liang <li...@openjdk.org> wrote:
> Currently, raw bytecode access goes through multiple wrappers, include one > from ClassFile API and another ByteBuffer for merged big endian value reads. > We can merge the ByteBuffer =into the ClassFile API one (RawBytecodeHelper) > for safer access. > > RawBytecodeHelper is also restructured so we avoid allocating it on the heap. > Large `rawNext` method is now also inlined into the smaller `next` method. > > Current benchmark results show this significantly speeds up > `jdk.classfile.Write` and some degree of speedup for simple lambda startup. > The impact on general application workloads is minuscule, but this doesn't > seem to bring any regression. > > Pinging @wenshao and @cl4es for review. This pull request has now been integrated. Changeset: a1eebbdf Author: Chen Liang <li...@openjdk.org> URL: https://git.openjdk.org/jdk/commit/a1eebbdf8a62b641b765bf4cec5066690c11a8e5 Stats: 473 lines in 9 files changed: 198 ins; 101 del; 174 mod 8339576: Speed up raw bytecode processing in ClassFile API Co-authored-by: Shaojin Wen <s...@openjdk.org> Reviewed-by: asotona, redestad ------------- PR: https://git.openjdk.org/jdk/pull/20863
