| [tracecompass-dev] Common Trace Format 2 (CTF2) specification and sub-specs |
Hi, Here is the status of the specification and sub-specifications: - "CTF2‑SPEC‑2.0: Common Trace Format version 2" https://diamon.org/ctf/files/CTF2-SPEC-2.0.html This is the official CTF 2.0 spec. The URL https://diamon.org/ctf points to the latest version of the Common Trace Format spec. - "CTF2‑DOCID‑2.0: CTF 2 document identifier format" https://diamon.org/ctf/files/CTF2-DOCID-2.0.html The CTF 2 specification refers to it. - "CTF2-FS-1.0: Layout of a CTF 2 trace stored on a file system" https://diamon.org/ctf/files/CTF2-FS-1.0.html This document covers how Babeltrace and Trace Compass will expect the CTF2 files on the filesystem, and how Babeltrace and LTTng plan to produce them. This is by all means an "optional" specification, which means it is up to the implementation to decide whether they want to abide by it or not. Philippe plans to soon release a CTF2-FS-2.0 document with pretty much the same content as version 1.0, but formatted following the CTF2‑DOCID‑2.0 specification. We are planning to add an index of those relevant "optional" specifications within the CTF2 specification so they can easily be found. If we end up having a new storage pattern that end up being commonly used by implementations, e.g. storing a CTF2 trace within a binary blob in OpenTelemetry [1], we can always create a new sub-specification similar to CTF2-FS to cover this. The following specification files were deprecated by the time the CTF2 specification was finalized: - https://diamon.org/ctf/files/CTF2-BASICATTRS-1.0.html - https://diamon.org/ctf/files/CTF2-PMETA-1.0.html As always, feedback is welcome! Thanks, Mathieu [1] https://github.com/open-telemetry/opentelemetry-specification/issues/3979 -- Mathieu Desnoyers EfficiOS Inc. https://www.efficios.com