google/perfetto
Nov 2024 – Nov 2024
1 Month active
Languages Used
C++
Technical Skills
ConcurrencySystem ProgrammingTime Handling
Russell Greene
PROFILE
Russell Greene
Russell Greene enhanced cross-platform reliability and hardware compatibility in complex systems projects. In google/perfetto, he improved multi-threaded time handling by replacing non-thread-safe localtime calls with thread-safe localtime_s and localtime_r, and integrated tzset to ensure accurate timezone management, all in C and C++. This reduced time-related inconsistencies in event tracing. In ossrs/ffmpeg-webrtc, he fixed Vulkan hardware context handling for multi-plane DRM modifiers, enabling correct memory plane management across GPUs, particularly benefiting AMD architectures. Additionally, he contributed to microsoft/vcpkg by adding an optional build flag for AMD AMF codec support, leveraging his expertise in build systems and graphics programming.
Overall Statistics
Feature vs Bugs
33%Features
Repository Contributions
3Total
Bugs
2
Commits
3
Features
1
Lines of code
116
Activity Months2
Your Network
696 people
Work History
June 2025
2 Commits • 1 Features
Jun 1, 2025June 2025 monthly summary focusing on key accomplishments and business impact across two repositories. Delivered targeted fixes and feature enablement to enhance hardware-accelerated media processing and build-time configurability.
2 Commits • 1 Features
Jun 1, 2025June 2025 monthly summary focusing on key accomplishments and business impact across two repositories. Delivered targeted fixes and feature enablement to enhance hardware-accelerated media processing and build-time configurability.
June 2025
November 2024
1 Commits
Nov 1, 2024November 2024 (google/perfetto): Key bug fix delivering thread-safe time handling across Windows and POSIX. Replaced non-thread-safe localtime with localtime_s (Windows) and localtime_r (POSIX), and added tzset to ensure correct timezone handling in multi-threaded time formatting. Commit ee6cc386ea7b6b1ad80398bf75e23c0e7a5a1b87. Business value: improves reliability and accuracy of time-stamped events across multi-threaded tracers, reducing time-related data inconsistencies. Technical achievements: cross-platform timezone correctness, thread-safety enhancements, minimal surface-area changes in perfetto core.
November 2024
1 Commits
Nov 1, 2024November 2024 (google/perfetto): Key bug fix delivering thread-safe time handling across Windows and POSIX. Replaced non-thread-safe localtime with localtime_s (Windows) and localtime_r (POSIX), and added tzset to ensure correct timezone handling in multi-threaded time formatting. Commit ee6cc386ea7b6b1ad80398bf75e23c0e7a5a1b87. Business value: improves reliability and accuracy of time-stamped events across multi-threaded tracers, reducing time-related data inconsistencies. Technical achievements: cross-platform timezone correctness, thread-safety enhancements, minimal surface-area changes in perfetto core.
Activity
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Quality Metrics
Correctness96.6%
Maintainability93.4%
Architecture93.4%
Performance83.4%
AI Usage20.0%
Skills & Technologies
Programming Languages
CC++cmake
Technical Skills
ConcurrencyDRMGraphics ProgrammingLow-level SystemsSystem ProgrammingTime HandlingVulkanbuild systems
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline
ossrs/ffmpeg-webrtc
Jun 2025 – Jun 2025
1 Month active
Languages Used
C
Technical Skills
DRMGraphics ProgrammingLow-level SystemsVulkan
microsoft/vcpkg
Jun 2025 – Jun 2025
1 Month active
Languages Used
cmake
Technical Skills
build systems