{"adoption": {"forks": 288, "observed_at": "2026-08-28T04:09:11.123443+00:00", "stars": 5140}, "canonical_url": "https://ross.abutalabs.com/products/hotspot", "card": {"archived": false, "artifact_type": "application", "description": "The Linux perf GUI for performance analysis.", "domain": ["developer-tools", "performance", "operating-systems"], "enriched": true, "function": ["gui", "monitoring", "benchmarking", "developer-tools"], "health_score": 88, "homepage": null, "language": "C++", "license": null, "license_family": "other", "maturity": "active", "member_repos": ["KDAB/hotspot"], "name": "KDAB/hotspot", "platform": ["cpp"], "pushed_at": "2026-05-12T14:39:40+00:00", "repo": "KDAB/hotspot", "stars": 5140, "tags": ["profiler", "perf", "flamegraph", "cpu-profiling", "qt", "off-cpu-analysis", "c-plus-plus", "linux", "desktop"], "topics": ["performance-analysis", "performance", "qt", "profiler", "cpu-profiling", "linux", "perf", "profiling", "cpp"], "urls": [], "use_cases": ["visualize perf.data files with flame graphs", "analyze CPU profiling results on Linux", "perform off-CPU analysis to find blocking waits", "filter profiling results by time, process, or thread", "profile C++ and Rust applications with symbol demangling", "record and analyze performance data without memorizing perf CLI options"], "what_it_is": "Hotspot is a standalone Qt-based GUI for analyzing Linux perf performance data, providing flame graphs, timelines, caller/callee views, and off-CPU analysis. It aims to be a KCachegrind-like UI around Linux perf with support for additional performance data formats.", "when_to_avoid": ["you need profiling on Windows or macOS - Hotspot is Linux-only", "you prefer command-line tools or terminal-based workflows", "you need a non-GUI/headless profiling analysis pipeline", "you require formats beyond Linux perf and related data sources"], "when_to_choose": ["you profile Linux applications with perf and want a graphical interface", "you need flame graphs, bottom-up/top-down views, and timeline filtering for perf data", "you work with C++ or Rust code and need inlined function and mangled-name support", "you want off-CPU analysis and tracepoint inspection in one tool"]}, "data_as_of": "2026-08-30T08:39:29.467469+00:00", "members": [{"path": "/products/hotspot", "repo": "KDAB/hotspot", "role": "main", "score": 71}], "provenance": {"archived": {"kind": "observed", "observed_at": "2026-08-28T04:09:11.123443+00:00", "source": "github"}, "artifact_type": {"confidence": null, "enriched_at": "2026-08-29T18:02:00.026564+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "4a44e3f1cde6490ce80a2e13812bbaaef8e9259c2e1d19406f4977fefeca2647", "fetched_at": "2026-08-28T04:09:11.123443+00:00", "kind": "readme", "missing": false, "url": "https://github.com/KDAB/hotspot"}], "taxonomy_version": 1}, "description": {"kind": "observed", "observed_at": "2026-08-28T04:09:11.123443+00:00", "source": "github"}, "domain": {"confidence": null, "enriched_at": "2026-08-29T18:02:00.026564+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "4a44e3f1cde6490ce80a2e13812bbaaef8e9259c2e1d19406f4977fefeca2647", "fetched_at": "2026-08-28T04:09:11.123443+00:00", "kind": "readme", "missing": false, "url": "https://github.com/KDAB/hotspot"}], "taxonomy_version": 1}, "enriched": {"inputs": [], "kind": "computed", "method": "enrichment_status"}, "function": {"confidence": null, "enriched_at": "2026-08-29T18:02:00.026564+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "4a44e3f1cde6490ce80a2e13812bbaaef8e9259c2e1d19406f4977fefeca2647", "fetched_at": "2026-08-28T04:09:11.123443+00:00", "kind": "readme", "missing": false, "url": "https://github.com/KDAB/hotspot"}], "taxonomy_version": 1}, "health_score": {"inputs": ["days_since_push", "days_since_release", "archived"], "kind": "computed", "method": "health_v1"}, "homepage": {"kind": "observed", "observed_at": "2026-08-28T04:09:11.123443+00:00", "source": "github"}, "language": {"kind": "observed", "observed_at": "2026-08-28T04:09:11.123443+00:00", "source": "github"}, "license": {"kind": "observed", "observed_at": "2026-08-28T04:09:11.123443+00:00", "source": "github"}, "license_family": {"inputs": ["license"], "kind": "computed", "method": "license_family"}, "maturity": {"confidence": null, "enriched_at": "2026-08-29T18:02:00.026564+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "4a44e3f1cde6490ce80a2e13812bbaaef8e9259c2e1d19406f4977fefeca2647", "fetched_at": "2026-08-28T04:09:11.123443+00:00", "kind": "readme", "missing": false, "url": "https://github.com/KDAB/hotspot"}], "taxonomy_version": 1}, "member_repos": {"kind": "observed", "observed_at": "2026-08-28T04:09:11.123443+00:00", "source": "github"}, "name": {"kind": "observed", "observed_at": "2026-08-28T04:09:11.123443+00:00", "source": "github"}, "platform": {"confidence": null, "enriched_at": "2026-08-29T18:02:00.026564+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "4a44e3f1cde6490ce80a2e13812bbaaef8e9259c2e1d19406f4977fefeca2647", "fetched_at": "2026-08-28T04:09:11.123443+00:00", "kind": "readme", "missing": false, "url": "https://github.com/KDAB/hotspot"}], "taxonomy_version": 1}, "pushed_at": {"kind": "observed", "observed_at": "2026-08-28T04:09:11.123443+00:00", "source": "github"}, "repo": {"kind": "observed", "observed_at": "2026-08-28T04:09:11.123443+00:00", "source": "github"}, "stars": {"kind": "observed", "observed_at": "2026-08-28T04:09:11.123443+00:00", "source": "github"}, "tags": {"confidence": null, "enriched_at": "2026-08-29T18:02:00.026564+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "4a44e3f1cde6490ce80a2e13812bbaaef8e9259c2e1d19406f4977fefeca2647", "fetched_at": "2026-08-28T04:09:11.123443+00:00", "kind": "readme", "missing": false, "url": "https://github.com/KDAB/hotspot"}], "taxonomy_version": 1}, "topics": {"kind": "observed", "observed_at": "2026-08-28T04:09:11.123443+00:00", "source": "github"}, "urls": {"kind": "observed", "observed_at": "2026-08-28T04:09:11.123443+00:00", "source": "github"}, "use_cases": {"confidence": null, "enriched_at": "2026-08-29T18:02:00.026564+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "4a44e3f1cde6490ce80a2e13812bbaaef8e9259c2e1d19406f4977fefeca2647", "fetched_at": "2026-08-28T04:09:11.123443+00:00", "kind": "readme", "missing": false, "url": "https://github.com/KDAB/hotspot"}], "taxonomy_version": 1}, "what_it_is": {"confidence": null, "enriched_at": "2026-08-29T18:02:00.026564+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "4a44e3f1cde6490ce80a2e13812bbaaef8e9259c2e1d19406f4977fefeca2647", "fetched_at": "2026-08-28T04:09:11.123443+00:00", "kind": "readme", "missing": false, "url": "https://github.com/KDAB/hotspot"}], "taxonomy_version": 1}, "when_to_avoid": {"confidence": null, "enriched_at": "2026-08-29T18:02:00.026564+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "4a44e3f1cde6490ce80a2e13812bbaaef8e9259c2e1d19406f4977fefeca2647", "fetched_at": "2026-08-28T04:09:11.123443+00:00", "kind": "readme", "missing": false, "url": "https://github.com/KDAB/hotspot"}], "taxonomy_version": 1}, "when_to_choose": {"confidence": null, "enriched_at": "2026-08-29T18:02:00.026564+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "4a44e3f1cde6490ce80a2e13812bbaaef8e9259c2e1d19406f4977fefeca2647", "fetched_at": "2026-08-28T04:09:11.123443+00:00", "kind": "readme", "missing": false, "url": "https://github.com/KDAB/hotspot"}], "taxonomy_version": 1}}, "score": {"components": {"activity": 82, "longevity": 100, "rhythm": 40}, "computed_at": "2026-09-03T02:20:16.233290+00:00", "flags": ["no_license"], "formula": "round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)", "inputs": {"age_days": 3543, "days_push": 113, "days_rel": 187, "gap_med": 224, "n_releases_24m": 2}, "score": 71, "version": 2}, "staleness": {"enrichment_outdated": false, "low_confidence": false, "scrape_days": 9, "stale_scrape": false}}