2026 · Journal of Systems and Software
Kasra Darvishi, Morteza Noferesti, Yuvraj Sehgal, Naser Ezzati-Jivan
LMAT combines multi-task language models for kernel-event and event-duration prediction with online change detection, lightweight error-vector root-cause analysis, and adaptive tracing control.
Keywords: adaptive tracing · LTTng · kernel events · system-call sequences · event-duration modeling
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2025 · IEEE/ACM International Conference on Software Engineering (ICSE)
Madeline Janecek, Naser Ezzati-Jivan, Abdelwahab Hamou-Lhadj
The paper reconstructs missing system-call events in execution traces with diffusion and structured state-space generative models.
Keywords: execution trace reconstruction · trace imputation · diffusion models · DiffWave · SSSDS4
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2024 · ACM/SPEC International Conference on Performance Engineering (ICPE)
Amirmahdi Khosravi Tabrizi, Naser Ezzati-Jivan, Francois Tetreault
ALS uses source-code features and reinforcement learning to recommend which Python functions to log and which log levels to use for performance-bug diagnosis.
Keywords: adaptive logging · ALS · reinforcement learning · log placement · log level selection
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2024 · The 37th Canadian Conference on Artificial Intelligence
Amir Haghshenas, Naser Ezzati-Jivan, Michel Dagenais
The paper uses gradient boosting and feature importance to reduce the amount of trace data needed for microservice performance modeling.
Keywords: trace data volume · feature importance · CPU demand · memory demand · Alibaba microservices
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2024 · 2024 IEEE/ACM International Conference on Software Engineering: New Ideas and Emerging Results (ICSE-NIER)
Kasra Darvishi, Morteza Noferesti, Naser Ezzati-Jivan
The paper proposes an adaptive tracing loop that combines language-model prediction of kernel-event sequences and event durations with change detection and root-cause analysis, so detailed tracing is activated only around significant behavior shifts.
Keywords: adaptive tracing · LTTng · kernel events · system-call sequences · event-duration modeling
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2017 · IEEE High Performance Extreme Computing Conference (HPEC)
Houssem Daoud, Naser Ezzati-Jivan, Michel R. Dagenais
The paper introduces a kernel-resident dynamic sampler that tracks virtual and physical memory usage while reducing the event volume generated by high-frequency memory activity.
Keywords: memory usage · dynamic sampling · enterprise applications · trace overhead · LTTng
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