ROCm/rocprofiler-systems
Nov 2024 – Jul 2025
6 Months active
Languages Used
C++CMakeMarkdownRSTShellcmakeYAML
Technical Skills
Build SystemsCMakeSubmodule ManagementLibrary ManagementSystem ProgrammingC++
ajanicijamd
PROFILE
Ajanicijamd
Aleksandar Janicijevic contributed to the ROCm/rocprofiler-systems repository by developing and refining profiling infrastructure and build systems over six months. He standardized CMake build presets and external dependency handling, improving consistency across CI and local environments. Aleksandar enhanced profiling observability by enabling event grouping by HIP stream or HSA queue, and stabilized NIC performance tests through dynamic scripting and Docker environment hardening. His work included debugging concurrency issues in C++ and integrating performance profiling with Perfetto. By authoring technical documentation and automating tests, he improved reproducibility and reliability, demonstrating depth in CMake, CI/CD pipelines, and system-level programming within GPU computing workflows.
Overall Statistics
Feature vs Bugs
71%Features
Repository Contributions
10Total
Bugs
2
Commits
10
Features
5
Lines of code
1,034
Activity Months6
Your Network
1299 people
Work History
July 2025
2 Commits • 2 Features
Jul 1, 2025July 2025 monthly summary for ROCm/rocprofiler-systems: Focused on stability, consistency, and observability. Delivered two key features: (1) Build System: CMake Presets Standardization to unify build configurations across CI and local environments (CI, debug, debug-optimized, release presets); (2) Profiling and Observability: Grouping Profiling Events by Stream ID or HSA Queue with new ROCPROFSYS_ROCM_GROUP_BY_QUEUE configuration. These changes reduce environment drift, streamline CI workflows, and improve the accuracy and readability of performance traces. Major bugs fixed: no explicit blockers reported; effort aimed at stabilizing builds and trace grouping to prevent environment-related issues. Overall impact: more predictable builds, faster onboarding, and enhanced traceability for performance analysis, aligning development and release processes. Technologies/skills demonstrated: CMake presets, Perfetto trace integration, HIP stream and HSA queue concepts, configuration management, CI automation, cross-environment build standardization.
2 Commits • 2 Features
Jul 1, 2025July 2025 monthly summary for ROCm/rocprofiler-systems: Focused on stability, consistency, and observability. Delivered two key features: (1) Build System: CMake Presets Standardization to unify build configurations across CI and local environments (CI, debug, debug-optimized, release presets); (2) Profiling and Observability: Grouping Profiling Events by Stream ID or HSA Queue with new ROCPROFSYS_ROCM_GROUP_BY_QUEUE configuration. These changes reduce environment drift, streamline CI workflows, and improve the accuracy and readability of performance traces. Major bugs fixed: no explicit blockers reported; effort aimed at stabilizing builds and trace grouping to prevent environment-related issues. Overall impact: more predictable builds, faster onboarding, and enhanced traceability for performance analysis, aligning development and release processes. Technologies/skills demonstrated: CMake presets, Perfetto trace integration, HIP stream and HSA queue concepts, configuration management, CI automation, cross-environment build standardization.
July 2025
June 2025
2 Commits
Jun 1, 2025Month: 2025-06 Key features delivered - NIC performance test reliability improvements for ROCm/rocprofiler-systems: stabilised test execution by ensuring required tools are available in Docker environments, introducing a dynamic default network interface discovery script, and tuning the data download size to prevent timeouts, resulting in consistent test outcomes. Major bugs fixed - NIC Performance Test Reliability Improvement: Stabilised NIC performance monitoring tests by providing necessary tools in Docker environments, adding a dynamic interface discovery, and limiting file download size to avoid timeouts. Commits included: b98c3c8b863004ac4b6b834d23611fa4906168d7 (Fixed NIC performance monitoring test (#189)) and 4346c1c2172a326e80ef89219062e13a4422b3ce (Modified nic-performance test to download a smaller file (#253)). Overall impact and accomplishments - Significantly improved CI stability and reproducibility of NIC performance benchmarks, reducing flaky test failures and accelerating release cycles. The changes enable consistent benchmarking across Docker-based environments and reduce time spent triaging intermittent CI issues. Technologies/skills demonstrated - Docker-based test environment hardening, dynamic scripting for network interface discovery, test data management and tuning, CI/test automation, and maintenance of performance-monitoring test suites.
June 2025
2 Commits
Jun 1, 2025Month: 2025-06 Key features delivered - NIC performance test reliability improvements for ROCm/rocprofiler-systems: stabilised test execution by ensuring required tools are available in Docker environments, introducing a dynamic default network interface discovery script, and tuning the data download size to prevent timeouts, resulting in consistent test outcomes. Major bugs fixed - NIC Performance Test Reliability Improvement: Stabilised NIC performance monitoring tests by providing necessary tools in Docker environments, adding a dynamic interface discovery, and limiting file download size to avoid timeouts. Commits included: b98c3c8b863004ac4b6b834d23611fa4906168d7 (Fixed NIC performance monitoring test (#189)) and 4346c1c2172a326e80ef89219062e13a4422b3ce (Modified nic-performance test to download a smaller file (#253)). Overall impact and accomplishments - Significantly improved CI stability and reproducibility of NIC performance benchmarks, reducing flaky test failures and accelerating release cycles. The changes enable consistent benchmarking across Docker-based environments and reduce time spent triaging intermittent CI issues. Technologies/skills demonstrated - Docker-based test environment hardening, dynamic scripting for network interface discovery, test data management and tuning, CI/test automation, and maintenance of performance-monitoring test suites.
April 2025
2 Commits • 1 Features
Apr 1, 2025April 2025: Delivered Network Performance Profiling for NICs within ROCm Systems Profiler. Authored a comprehensive How-To documentation detailing NIC event listing, profiling configuration, instrumentation/run flow, and trace viewing; added CI tests for NIC performance profiling across multiple OS; updated pipelines to incorporate NIC profiling in CI. Commits tracked: de84a277f20a7f5257fcc7057cc5febe3fcd2983 (How-To document) and 11fe6a8ebb3f68a7c89972836057900dd4ecfeea (Added ctest for NIC profiling). This work strengthens reproducibility and enables faster optimization cycles for network-intensive workloads.
2 Commits • 1 Features
Apr 1, 2025April 2025: Delivered Network Performance Profiling for NICs within ROCm Systems Profiler. Authored a comprehensive How-To documentation detailing NIC event listing, profiling configuration, instrumentation/run flow, and trace viewing; added CI tests for NIC performance profiling across multiple OS; updated pipelines to incorporate NIC profiling in CI. Commits tracked: de84a277f20a7f5257fcc7057cc5febe3fcd2983 (How-To document) and 11fe6a8ebb3f68a7c89972836057900dd4ecfeea (Added ctest for NIC profiling). This work strengthens reproducibility and enables faster optimization cycles for network-intensive workloads.
April 2025
March 2025
1 Commits
Mar 1, 2025March 2025 monthly summary for ROCm/rocprofiler-systems. Delivered a critical RCCL initialization deadlock fix and stability improvements, along with a refactor of RCCL setup integrated into the initialization flow. Implemented local availability checks in the delay module to prevent crashes and improve startup resilience. Commit 26bb6042156dd7f59bb5e8d12062f90855691514 documents the fix (RCCL initialization deadlock). Overall, this work reduced startup failures, increased profiling reliability, and laid groundwork for future ROCm stability enhancements.
March 2025
1 Commits
Mar 1, 2025March 2025 monthly summary for ROCm/rocprofiler-systems. Delivered a critical RCCL initialization deadlock fix and stability improvements, along with a refactor of RCCL setup integrated into the initialization flow. Implemented local availability checks in the delay module to prevent crashes and improve startup resilience. Commit 26bb6042156dd7f59bb5e8d12062f90855691514 documents the fix (RCCL initialization deadlock). Overall, this work reduced startup failures, increased profiling reliability, and laid groundwork for future ROCm stability enhancements.
February 2025
1 Commits • 1 Features
Feb 1, 2025February 2025 monthly summary for ROCm/rocprofiler-systems focusing on profiling readiness and reliability improvements for the ROCm profiling stack.
1 Commits • 1 Features
Feb 1, 2025February 2025 monthly summary for ROCm/rocprofiler-systems focusing on profiling readiness and reliability improvements for the ROCm profiling stack.
February 2025
November 2024
2 Commits • 1 Features
Nov 1, 2024November 2024 monthly summary for ROCm/rocprofiler-systems: Focused on external dependency path standardization and Dyninst submodule URL updates to improve build reliability, portability, and downstream compatibility. The changes align with ROCm practices and reduce environment-specific build failures.
November 2024
2 Commits • 1 Features
Nov 1, 2024November 2024 monthly summary for ROCm/rocprofiler-systems: Focused on external dependency path standardization and Dyninst submodule URL updates to improve build reliability, portability, and downstream compatibility. The changes align with ROCm practices and reduce environment-specific build failures.
Activity
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Quality Metrics
Correctness88.0%
Maintainability84.0%
Architecture83.0%
Performance76.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
C++CMakeMarkdownRSTShellYAMLcmake
Technical Skills
Build SystemsC++CI/CDCMakeConcurrencyDebuggingDocumentationGPU ComputingHIPLibrary ManagementPerfettoPerformance ProfilingROCmShell ScriptingSubmodule Management
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