Shared Data Kills Real-Time Cache Analysis. How to Resurrect It?
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
While data sharing is becoming a necessity in modern multi-core real-time systems, it complicates system analyzability and leads to significantly pessimistic latency bounds. This work is a step towards facilitating high-performance and coherent data sharing in real-time systems by tackling two main problems. The first is a well-acknowledged one: shared caches render cache analysis techniques useless and all cache accesses have to be assumed misses. The second is a new one, where we show that coherence interference voids classical cache analysis techniques. We contribute a solution that tackles both problems by leveraging time-based cache coherence and a novel methodology to integrate its effect into cache analysis. Thanks to this solution, we enable the usage of shared memory hierarchy with coherent shared data, while we prove that we are able to restore cache analysis; and hence, provide much tighter memory latency bounds.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.004 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.002 |
| Open science | 0.005 | 0.005 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.001 |
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