DTraComp: Comparing distributed execution traces for understanding intermittent latency sources
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
Microservice architectures can enhance software development by using multiple programming languages and deployment infrastructures, isolating failures within individual services, and accelerating the debugging and fixing of issues in independent services. Locating performance degradation becomes challenging, due to the presence of numerous service instances with complex interactions compounded by parallelism. Although end-to-end tracing allows tracing execution paths across services, and detecting their latencies, it is limited to high-level information. Indeed, end-to-end tracing cannot pinpoint the root causes of performance degradation between the processes. Moreover, many existing performance analysis tools lack a comparison feature to give developers a comprehensive view of the performance differences between two groups of requests. This paper introduces DTraComp (Distributed Trace Compare) , an open-source framework, compatible with various microservice trace standards, and integrated with Eclipse Trace Compass™. Our framework offers robust visual comparison capability for two groups of executions within distributed systems, which includes nested spans executed in parallel. Furthermore, it provides system kernel details for each thread involved in the execution of each span, allowing it to pinpoint the reasons for performance degradation across distributed systems. We used our proposed framework to analyze five practical use cases. By evaluating the efficiency of our tool, it was determined that the overall time complexity scales linearly O(n) with the trace size, indicating its suitability for deployment in production environments. It is currently used within Ericsson company for performance evaluation purposes.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.002 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it