Election for Rahil Shah as Committer on Eclipse OpenJ9

Rahil Shah has been an active contributor to the Eclipse OpenJ9 project since 2017.

Rahil is the Z processor architecture code generator and performance lead within IBM for Eclipse OpenJ9. He provides deep technical knowledge of Z architecture, Z performance, Z calling conventions, and design and implementation details of the OpenJ9 JIT Z code generator and supporting optimizations. Within IBM he leads a team that has been responsible for delivering support for the z16 processor into OpenJ9, and will be responsible for exploitation of any future processors. In the OpenJ9 community, Rahil is the first point of contact for Z JIT issues and problem investigation. Rahil is also an expert in the OpenJ9 JIT-induced profiling feature that boosts cross-platform performance at higher optimization levels, and he is presently working on a means to efficiently enable the technology to derive the same benefits at lower optimization levels (thereby improving startup performance). In addition, Rahil is currently ensuring that OpenJ9 CRIU support is properly enabled and supported on Z.

Rahil has contributed 74 pull requests [1] to the project and has repeatedly demonstrated thoroughness in his implementation and quality assurance of each of those commits. He is a regular participant in the weekly OpenJ9 Community Call, and he monitors and provides responses to questions asked on the Eclipse OpenJ9 Slack workspace particularly in areas dealing with Z architecture, Linux on Z, z/OS, or JIT profiling. Rahil has formally reviewed 67 pull requests [2] and has been indirectly involved in shaping many others. His review comments are provided in a timely fashion when requested and always reflect professionalism and respect for other contributors.

Rahil has also been an advocate for sharing OpenJ9 technology and growing its adoption. He presented a vitality talk on JIT profiling [3], co-authored an exhibit at ECOOP’19 on the JIT profiling technology [4], and he has mentored students on a CANOSP project to develop an OpenJ9 debug agent to help locate JITed methods responsible for compilation failures [5].

I believe Rahil is a deserving committer for the Eclipse OpenJ9 project.

[1] https://github.com/eclipse-openj9/openj9/pulls?q=is%3Apr+author%3Ar30sh…
[2] https://github.com/eclipse-openj9/openj9/pulls?q=is%3Apr+reviewed-by%3A…
[3] https://www.youtube.com/watch?v=SSlLZlOErvc
[4] https://2021.icse-conferences.org/people-index/ecoop-2019
[5] https://www.youtube.com/watch?v=X82npmsZeis