March 2026: Delivered GPU performance monitoring enhancements and stability improvements for Skia. Key features include Vulkan elapsed time statistics querying, a generalized GPU stats interface, and a new OcclusionPassSamples stat to improve performance analysis and overdraw visibility. Implemented a policy to limit timer queries to a single submission per command buffer to boost stability. These changes provide more accurate, actionable performance data and a robust foundation for future stats extensions. Focus areas: - Performance analysis: precise timing, overdraw visibility, and robust stats framework. - Stability: reduced variance in measurements with single-timer-per-submission policy. - Maintainability: refactored stats interface to be more extensible and easier to evolve. - Collaboration and review: iterative reviews across GPU stats and Vulkan components.

March 2025 (denoland/chromium_build): Delivered targeted performance improvements by enabling NEON SIMD acceleration for ARMv7 Rust builds on Linux and Android. This work aligns Linux ARMv7 with Android ARMv7 enablement by configuring ABI targets to support NEON, and conditionally enabling NEON for Cronet builds where NEON is unsupported. No major bugs addressed this month. Overall impact includes improved Rust-compiled workload performance on ARMv7 and parity between Linux and Android build configurations, facilitating faster runtimes and more competitive ARMv7 performance in production. Technologies demonstrated include cross-target ABI configuration, feature gating, and Rust build customization within a large- scale Chromium Build environment.