{"paper":{"title":"Microflow: Microarchitectural Causal Observability for Deep Cross-Layer Analysis and Optimization","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.PF","cs.SE"],"primary_cat":"cs.AR","authors_text":"Chengyu Song, Nael Abu-Ghazaleh, Saber Ganjisaffar","submitted_at":"2026-07-14T18:36:19Z","abstract_excerpt":"Existing architectural simulators expose aggregate metrics or raw traces, but fail to reveal complex interactions among microarchitectural events and their relationship to program execution. Consequently, architects observe performance symptoms but cannot systematically attribute them to root causes across abstraction layers. This paper introduces Microflow, an observability framework elevating causality to a first-class analytical object. Microflow transforms execution traces into the Microflow Intermediate Representation (MFIR), explicitly capturing dependencies across software semantics, in"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.13184","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2607.13184/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}