David Keyes developed a memory optimization feature for the google/perfetto repository, focusing on efficient trace data handling. He introduced optional zlib compression to the TraceSummaryOutput pipeline by adding a configurable Compression enum and integrating it into the Summarize path. This approach allowed users to reduce memory usage and data transfer overhead for large trace workloads. David extended the TraceSummaryOutputSpec to support the new compression option, laying the foundation for future codec integrations. His work leveraged C++ and Python, drawing on skills in build systems, performance optimization, and system programming to improve scalability and resource efficiency for Perfetto users.