Performance and Architecture team

CS 161 (Algorithm Analysis) Autumn Quarter 2018

CS 161 (Algorithm Analysis) Winter Quarter 2019

CS 143 (Compilers) Spring Quarter 2019

CS 242 (Programming Languages) Autumn Quarter 2019

CS 243 (Advanced Compilers) Winter Quarter 2020

• Worked on development of YugabyteDB, a high-performance distributed SQL database

• Focused on performance improvements in YSQL, YugabyteDB’s PostgreSQL compatible API

• Added support for transactional bulk inserts which lead to a 30x speedup in the COPY command

• Developed a single row UPDATE/DELETE fast path which lead to a 2.5x speedup for affected queries

• Implemented aggregate pushdowns for YSQL in the distributed storage layer which lead to 99% fewer RPCs for aggregate queries (e.g. COUNT(*))

• Created atomic filesystem startup procedure to gracefully recover from node creation failures

Worked on the vEOS Router team.

• Worked on development of IPsec accelerated software networking pipeline based on DPDK/BESS, designing and implementing control plane/data plane interface layer

• Led Google Cloud Platform and Microsoft Azure development (Hyper-V support, provisioning agent, topology generation)

• Co-led development of High-Availability Agent for cloud networking redundancy

• Worked on Link Aggregation (IEEE 802.1AX) team on feature enhancements and bug fixes

• Implemented LACP state machine logging and event monitoring system for diagnosing customer issues in the field