Extending Distributed Tracing to Kernel with Vertical Tracing
In In Prepration, 2026
Author role: 1st author
TBA
Publications
Clicking on any of the links below will redirect you to the abstract and details of my contributions.
Accurate and Predictable Scoring for Hardware Contention in Microservices
In Submission, 2025
Author role: 1st author
We introduce a mitigation-agnostic tanh-based contention score for microservices—implemented in the Gordion framework—and show it can be predicted from performance counters and within-service latencies so operators can act before SLO violations.
(Poster) Diagnosing behavioral causes of contention in distributed systems
Published in USENIX NSDI, 2023
Author role: 1st author
We outline a tracing-based method to diagnose contention in distributed systems by localizing victim requests, finding temporally overlapping concurrent traces as candidate aggressors, and iteratively enabling contention-focused tracepoints.
Automating instrumentation choices for performance problems in distributed applications with VAIF
Published in ACM SoCC, 2021
Author role: 4th author
VAIF automatically selects low-overhead distributed tracing instrumentation to localize performance problems in systems like OpenStack and HDFS.