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"wall_seconds": 0.01, "ggc_memory_reported": "42k" }, { "name": "tree switch conversion", "user_seconds": 0.04, "system_seconds": 0.01, "wall_seconds": 0.04, "ggc_memory_reported": "15k" }, { "name": "tree switch lowering", "user_seconds": 0.03, "system_seconds": 0.0, "wall_seconds": 0.02, "ggc_memory_reported": "2558k" }, { "name": "gimple CSE sin/cos", "user_seconds": 0.01, "system_seconds": 0.0, "wall_seconds": 0.02, "ggc_memory_reported": "6248" }, { "name": "gimple widening/fma detection", "user_seconds": 0.05, "system_seconds": 0.01, "wall_seconds": 0.03, "ggc_memory_reported": "76k" }, { "name": "tree strlen optimization", "user_seconds": 0.24, "system_seconds": 0.03, "wall_seconds": 0.29, "ggc_memory_reported": "13M" }, { "name": "tree modref", "user_seconds": 0.2, "system_seconds": 0.08, "wall_seconds": 0.26, "ggc_memory_reported": "27M" }, { "name": "dominance frontiers", "user_seconds": 0.08, "system_seconds": 0.04, "wall_seconds": 0.13, "ggc_memory_reported": "0" }, { "name": "dominance computation", "user_seconds": 1.79, "system_seconds": 0.73, "wall_seconds": 2.72, "ggc_memory_reported": "0" }, { "name": "control dependences", "user_seconds": 0.03, "system_seconds": 0.03, "wall_seconds": 0.14, "ggc_memory_reported": "0" }, { "name": "out of ssa", "user_seconds": 0.13, "system_seconds": 0.02, "wall_seconds": 0.17, "ggc_memory_reported": "529k" }, { "name": "expand vars", "user_seconds": 0.43, "system_seconds": 0.13, "wall_seconds": 0.59, "ggc_memory_reported": "13M" }, { "name": "expand", "user_seconds": 0.97, "system_seconds": 0.15, "wall_seconds": 1.01, "ggc_memory_reported": "192M" }, { "name": "post expand cleanups", "user_seconds": 0.09, "system_seconds": 0.05, "wall_seconds": 0.09, "ggc_memory_reported": "21M" }, { "name": "varconst", "user_seconds": 0.13, "system_seconds": 0.09, "wall_seconds": 0.26, "ggc_memory_reported": "64k" }, { "name": "lower subreg", "user_seconds": 0.03, "system_seconds": 0.03, "wall_seconds": 0.05, "ggc_memory_reported": "218k" }, { "name": "jump", "user_seconds": 0.04, "system_seconds": 0.01, "wall_seconds": 0.03, "ggc_memory_reported": "0" }, { "name": "forward prop", "user_seconds": 0.67, "system_seconds": 0.08, "wall_seconds": 0.79, "ggc_memory_reported": "942k" }, { "name": "CSE", "user_seconds": 1.31, "system_seconds": 0.16, "wall_seconds": 1.39, "ggc_memory_reported": "6974k" }, { "name": "dead code elimination", "user_seconds": 0.31, "system_seconds": 0.04, "wall_seconds": 0.26, "ggc_memory_reported": "0" }, { "name": "dead store elim1", "user_seconds": 0.4, "system_seconds": 0.04, "wall_seconds": 0.5, "ggc_memory_reported": "19M" }, { "name": "dead store elim2", "user_seconds": 0.38, "system_seconds": 0.08, "wall_seconds": 0.51, "ggc_memory_reported": "25M" }, { "name": "loop analysis", "user_seconds": 0.01, "system_seconds": 0.0, "wall_seconds": 0.07, "ggc_memory_reported": "0" }, { "name": "loop init", "user_seconds": 0.91, "system_seconds": 0.39, "wall_seconds": 1.19, "ggc_memory_reported": "98M" }, { "name": "loop invariant motion", "user_seconds": 0.1, "system_seconds": 0.0, "wall_seconds": 0.05, "ggc_memory_reported": "507k" }, { "name": "loop unrolling", "user_seconds": 0.33, "system_seconds": 0.03, "wall_seconds": 0.42, "ggc_memory_reported": "71M" }, { "name": "loop fini", "user_seconds": 0.35, "system_seconds": 0.1, "wall_seconds": 0.4, "ggc_memory_reported": "7320" }, { "name": "CPROP", "user_seconds": 1.15, "system_seconds": 0.18, "wall_seconds": 1.1, "ggc_memory_reported": "43M" }, { "name": "PRE", "user_seconds": 0.57, "system_seconds": 0.11, "wall_seconds": 0.67, "ggc_memory_reported": "6439k" }, { "name": "code hoisting", "user_seconds": 0.0, "system_seconds": 0.0, "wall_seconds": 0.02, "ggc_memory_reported": "448" }, { "name": "web", "user_seconds": 0.18, "system_seconds": 0.01, "wall_seconds": 0.17, "ggc_memory_reported": "2631k" }, { "name": "CSE 2", "user_seconds": 0.87, "system_seconds": 0.1, "wall_seconds": 0.94, "ggc_memory_reported": "3670k" }, { "name": "branch prediction", "user_seconds": 0.44, "system_seconds": 0.18, "wall_seconds": 0.65, "ggc_memory_reported": "11M" }, { "name": "combiner", "user_seconds": 1.53, "system_seconds": 0.12, "wall_seconds": 1.72, "ggc_memory_reported": "45M" }, { "name": "if-conversion", "user_seconds": 0.21, "system_seconds": 0.02, "wall_seconds": 0.15, "ggc_memory_reported": "3539k" }, { "name": "mode switching", "user_seconds": 0.02, "system_seconds": 0.0, "wall_seconds": 0.0, "ggc_memory_reported": "0" }, { "name": "integrated RA", "user_seconds": 3.47, "system_seconds": 0.38, "wall_seconds": 4.38, "ggc_memory_reported": "281M" }, { "name": "LRA non-specific", "user_seconds": 1.27, "system_seconds": 0.1, "wall_seconds": 1.38, "ggc_memory_reported": "16M" }, { "name": "LRA virtuals elimination", "user_seconds": 0.21, "system_seconds": 0.04, "wall_seconds": 0.26, "ggc_memory_reported": "10M" }, { "name": "LRA reload inheritance", "user_seconds": 0.25, "system_seconds": 0.01, "wall_seconds": 0.25, "ggc_memory_reported": "3009k" }, { "name": "LRA create live ranges", "user_seconds": 0.87, "system_seconds": 0.06, "wall_seconds": 0.82, "ggc_memory_reported": "2296k" }, { "name": "LRA hard reg assignment", "user_seconds": 0.17, "system_seconds": 0.02, "wall_seconds": 0.15, "ggc_memory_reported": "0" }, { "name": "LRA rematerialization", "user_seconds": 0.17, "system_seconds": 0.0, "wall_seconds": 0.11, "ggc_memory_reported": "8488" }, { "name": "reload", "user_seconds": 0.06, "system_seconds": 0.01, "wall_seconds": 0.04, "ggc_memory_reported": "198k" }, { "name": "reload CSE regs", "user_seconds": 1.31, "system_seconds": 0.14, "wall_seconds": 1.87, "ggc_memory_reported": "30M" }, { "name": "ree", "user_seconds": 0.21, "system_seconds": 0.0, "wall_seconds": 0.13, "ggc_memory_reported": "331k" }, { "name": "thread pro- & epilogue", "user_seconds": 0.44, "system_seconds": 0.03, "wall_seconds": 0.56, "ggc_memory_reported": "16M" }, { "name": "if-conversion 2", "user_seconds": 0.07, "system_seconds": 0.0, "wall_seconds": 0.08, "ggc_memory_reported": "92k" }, { "name": "combine stack adjustments", "user_seconds": 0.06, "system_seconds": 0.02, "wall_seconds": 0.03, "ggc_memory_reported": "0" }, { "name": "peephole 2", "user_seconds": 0.2, "system_seconds": 0.01, "wall_seconds": 0.2, "ggc_memory_reported": "1772k" }, { "name": "rename registers", "user_seconds": 1.01, "system_seconds": 0.05, "wall_seconds": 1.2, "ggc_memory_reported": "3028k" }, { "name": "hard reg cprop", "user_seconds": 0.42, "system_seconds": 0.04, "wall_seconds": 0.5, "ggc_memory_reported": "531k" }, { "name": "scheduling 2", "user_seconds": 3.37, "system_seconds": 0.23, "wall_seconds": 3.68, "ggc_memory_reported": "15M" }, { "name": "machine dep reorg", "user_seconds": 0.62, "system_seconds": 0.08, "wall_seconds": 0.76, "ggc_memory_reported": "8506k" }, { "name": "reorder blocks", "user_seconds": 0.27, "system_seconds": 0.06, "wall_seconds": 0.14, "ggc_memory_reported": "14M" }, { "name": "shorten branches", "user_seconds": 0.19, "system_seconds": 0.06, "wall_seconds": 0.27, "ggc_memory_reported": "0" }, { "name": "reg stack", "user_seconds": 0.0, "system_seconds": 0.0, "wall_seconds": 0.01, "ggc_memory_reported": "0" }, { "name": "final", "user_seconds": 0.71, "system_seconds": 0.09, "wall_seconds": 0.69, "ggc_memory_reported": "58M" }, { "name": "variable output", "user_seconds": 0.03, "system_seconds": 0.02, "wall_seconds": 0.04, "ggc_memory_reported": "3132k" }, { "name": "symout", "user_seconds": 0.09, "system_seconds": 0.07, "wall_seconds": 0.15, "ggc_memory_reported": "0" }, { "name": "tree if-combine", "user_seconds": 0.03, "system_seconds": 0.0, "wall_seconds": 0.03, "ggc_memory_reported": "110k" }, { "name": "if to switch conversion", "user_seconds": 0.06, "system_seconds": 0.04, "wall_seconds": 0.06, "ggc_memory_reported": "13k" }, { "name": "uninit var analysis", "user_seconds": 0.06, "system_seconds": 0.07, "wall_seconds": 0.07, "ggc_memory_reported": "0" }, { "name": "straight-line strength reduction", "user_seconds": 0.08, "system_seconds": 0.02, "wall_seconds": 0.03, "ggc_memory_reported": "218k" }, { "name": "store merging", "user_seconds": 0.12, "system_seconds": 0.01, "wall_seconds": 0.19, "ggc_memory_reported": "3226k" }, { "name": "initialize rtl", "user_seconds": 0.0, "system_seconds": 0.0, "wall_seconds": 0.01, "ggc_memory_reported": "12k" }, { "name": "address lowering", "user_seconds": 0.0, "system_seconds": 0.0, "wall_seconds": 0.01, "ggc_memory_reported": "12k" }, { "name": "early local passes", "user_seconds": 0.06, "system_seconds": 0.0, "wall_seconds": 0.06, "ggc_memory_reported": "0" }, { "name": "unaccounted optimizations", "user_seconds": 0.0, "system_seconds": 0.0, "wall_seconds": 0.01, "ggc_memory_reported": "0" }, { "name": "rest of compilation", "user_seconds": 2.74, "system_seconds": 0.57, "wall_seconds": 3.14, "ggc_memory_reported": "39M" }, { "name": "unaccounted post reload", "user_seconds": 0.0, "system_seconds": 0.0, "wall_seconds": 0.01, "ggc_memory_reported": "0" }, { "name": "remove unused locals", "user_seconds": 0.49, "system_seconds": 0.32, "wall_seconds": 0.7, "ggc_memory_reported": "82k" }, { "name": "address taken", "user_seconds": 0.32, "system_seconds": 0.15, "wall_seconds": 0.33, "ggc_memory_reported": "97k" }, { "name": "rebuild frequencies", "user_seconds": 0.05, "system_seconds": 0.0, "wall_seconds": 0.12, "ggc_memory_reported": "357k" }, { "name": "repair loop structures", "user_seconds": 0.18, "system_seconds": 0.05, "wall_seconds": 0.22, "ggc_memory_reported": "11k" }, { "name": "TOTAL", "user_seconds": 118.64, "system_seconds": 46.81, "wall_seconds": 238.4, "ggc_memory_reported": "7983M" } ], "total": { "name": "TOTAL", "user_seconds": 118.64, "system_seconds": 46.81, "wall_seconds": 238.4, "ggc_memory_reported": "7983M" }, "phase_rows": [ { "name": "phase setup", "user_seconds": 0.0, "system_seconds": 0.0, "wall_seconds": 0.01, "ggc_memory_reported": "1899k" }, { "name": "phase parsing", "user_seconds": 16.74, "system_seconds": 17.5, "wall_seconds": 106.99, "ggc_memory_reported": "2354M" }, { "name": "phase lang. deferred", "user_seconds": 16.94, "system_seconds": 8.84, "wall_seconds": 25.78, "ggc_memory_reported": "2145M" }, { "name": "phase opt and generate", "user_seconds": 84.96, "system_seconds": 20.47, "wall_seconds": 105.46, "ggc_memory_reported": "3481M" }, { "name": "phase finalize", "user_seconds": 0.0, "system_seconds": 0.0, "wall_seconds": 0.13, "ggc_memory_reported": "0" } ], "subsystem_rows": [ { "name": "|name lookup", "user_seconds": 5.93, "system_seconds": 4.0, "wall_seconds": 9.06, "ggc_memory_reported": "135M" }, { "name": "|overload resolution", "user_seconds": 10.69, "system_seconds": 6.28, "wall_seconds": 16.49, "ggc_memory_reported": "1406M" }, { "name": "garbage collection", "user_seconds": 5.71, "system_seconds": 0.07, "wall_seconds": 5.79, "ggc_memory_reported": "0" }, { "name": "dump files", "user_seconds": 2.29, "system_seconds": 1.61, "wall_seconds": 3.84, "ggc_memory_reported": "0" }, { "name": "callgraph construction", "user_seconds": 1.63, "system_seconds": 0.61, "wall_seconds": 2.55, "ggc_memory_reported": "131M" }, { "name": "callgraph optimization", "user_seconds": 2.8, "system_seconds": 1.84, "wall_seconds": 3.97, "ggc_memory_reported": "1040k" }, { "name": "callgraph functions expansion", "user_seconds": 58.66, "system_seconds": 9.1, "wall_seconds": 67.78, "ggc_memory_reported": "1873M" }, { "name": "callgraph ipa passes", "user_seconds": 23.43, "system_seconds": 9.83, "wall_seconds": 33.27, "ggc_memory_reported": "1123M" }, { "name": "ipa function summary", "user_seconds": 0.25, "system_seconds": 0.06, "wall_seconds": 0.39, "ggc_memory_reported": "27M" }, { "name": "ipa dead code removal", "user_seconds": 0.26, "system_seconds": 0.0, "wall_seconds": 0.29, "ggc_memory_reported": "2464" }, { "name": "ipa inheritance graph", "user_seconds": 0.02, "system_seconds": 0.01, "wall_seconds": 0.03, "ggc_memory_reported": "178k" }, { "name": "ipa virtual call target", "user_seconds": 0.02, "system_seconds": 0.0, "wall_seconds": 0.01, "ggc_memory_reported": "59k" }, { "name": "ipa devirtualization", "user_seconds": 0.02, "system_seconds": 0.0, "wall_seconds": 0.02, "ggc_memory_reported": "116k" }, { "name": "ipa cp", "user_seconds": 0.91, "system_seconds": 0.14, "wall_seconds": 1.03, "ggc_memory_reported": "27M" }, { "name": "ipa inlining heuristics", "user_seconds": 1.5, "system_seconds": 0.08, "wall_seconds": 1.65, "ggc_memory_reported": "119M" }, { "name": "ipa function splitting", "user_seconds": 0.27, "system_seconds": 0.14, "wall_seconds": 0.35, "ggc_memory_reported": "14M" }, { "name": "ipa comdats", "user_seconds": 0.02, "system_seconds": 0.01, "wall_seconds": 0.02, "ggc_memory_reported": "0" }, { "name": "ipa reference", "user_seconds": 0.11, "system_seconds": 0.0, "wall_seconds": 0.11, "ggc_memory_reported": "0" }, { "name": "ipa profile", "user_seconds": 0.05, "system_seconds": 0.0, "wall_seconds": 0.03, "ggc_memory_reported": "0" }, { "name": "ipa pure const", "user_seconds": 0.5, "system_seconds": 0.09, "wall_seconds": 0.59, "ggc_memory_reported": "1278k" }, { "name": "ipa icf", "user_seconds": 0.54, "system_seconds": 0.0, "wall_seconds": 0.55, "ggc_memory_reported": "410k" }, { "name": "ipa SRA", "user_seconds": 0.62, "system_seconds": 0.03, "wall_seconds": 0.63, "ggc_memory_reported": "29M" }, { "name": "ipa free lang data", "user_seconds": 0.07, "system_seconds": 0.0, "wall_seconds": 0.07, "ggc_memory_reported": "0" }, { "name": "ipa free inline summary", "user_seconds": 0.08, "system_seconds": 0.0, "wall_seconds": 0.08, "ggc_memory_reported": "0" }, { "name": "ipa modref", "user_seconds": 0.31, "system_seconds": 0.0, "wall_seconds": 0.3, "ggc_memory_reported": "13M" }, { "name": "cfg construction", "user_seconds": 0.12, "system_seconds": 0.02, "wall_seconds": 0.1, "ggc_memory_reported": "12M" }, { "name": "cfg cleanup", "user_seconds": 1.21, "system_seconds": 0.1, "wall_seconds": 1.32, "ggc_memory_reported": "15M" }, { "name": "trivially dead code", "user_seconds": 0.42, "system_seconds": 0.07, "wall_seconds": 0.5, "ggc_memory_reported": "0" }, { "name": "df scan insns", "user_seconds": 0.43, "system_seconds": 0.07, "wall_seconds": 0.63, "ggc_memory_reported": "328k" }, { "name": "df reaching defs", "user_seconds": 1.14, "system_seconds": 0.13, "wall_seconds": 1.4, "ggc_memory_reported": "0" }, { "name": "df live regs", "user_seconds": 2.86, "system_seconds": 0.19, "wall_seconds": 2.85, "ggc_memory_reported": "0" }, { "name": "df live&initialized regs", "user_seconds": 1.31, "system_seconds": 0.13, "wall_seconds": 1.5, "ggc_memory_reported": "0" }, { "name": "df must-initialized regs", "user_seconds": 0.07, "system_seconds": 0.02, "wall_seconds": 0.14, "ggc_memory_reported": "0" }, { "name": "df use-def / def-use chains", "user_seconds": 0.64, "system_seconds": 0.1, "wall_seconds": 0.64, "ggc_memory_reported": "0" }, { "name": "df reg dead/unused notes", "user_seconds": 1.22, "system_seconds": 0.11, "wall_seconds": 1.47, "ggc_memory_reported": "31M" }, { "name": "register information", "user_seconds": 0.32, "system_seconds": 0.03, "wall_seconds": 0.16, "ggc_memory_reported": "0" }, { "name": "alias analysis", "user_seconds": 0.69, "system_seconds": 0.08, "wall_seconds": 0.91, "ggc_memory_reported": "65M" }, { "name": "alias stmt walking", "user_seconds": 1.95, "system_seconds": 0.42, "wall_seconds": 2.5, "ggc_memory_reported": "2071k" }, { "name": "register scan", "user_seconds": 0.07, "system_seconds": 0.0, "wall_seconds": 0.12, "ggc_memory_reported": "5117k" }, { "name": "rebuild jump labels", "user_seconds": 0.16, "system_seconds": 0.01, "wall_seconds": 0.13, "ggc_memory_reported": "0" }, { "name": "preprocessing", "user_seconds": 3.77, "system_seconds": 6.17, "wall_seconds": 82.45, "ggc_memory_reported": "414M" }, { "name": "parser (global)", "user_seconds": 2.63, "system_seconds": 4.02, "wall_seconds": 6.92, "ggc_memory_reported": "429M" }, { "name": "parser struct body", "user_seconds": 1.38, "system_seconds": 0.99, "wall_seconds": 2.18, "ggc_memory_reported": "197M" }, { "name": "parser enumerator list", "user_seconds": 0.01, "system_seconds": 0.0, "wall_seconds": 0.02, "ggc_memory_reported": "1027k" }, { "name": "parser function body", "user_seconds": 0.99, "system_seconds": 0.73, "wall_seconds": 1.92, "ggc_memory_reported": "322M" }, { "name": "parser inl. func. body", "user_seconds": 0.86, "system_seconds": 0.93, "wall_seconds": 1.83, "ggc_memory_reported": "90M" }, { "name": "parser inl. meth. body", "user_seconds": 1.85, "system_seconds": 1.14, "wall_seconds": 2.98, "ggc_memory_reported": "162M" }, { "name": "template instantiation", "user_seconds": 18.47, "system_seconds": 11.68, "wall_seconds": 30.2, "ggc_memory_reported": "2861M" }, { "name": "constant expression evaluation", 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"system_seconds": 0.0, "wall_seconds": 0.04, "ggc_memory_reported": "0" }, { "name": "unaccounted late compilation", "user_seconds": 0.02, "system_seconds": 0.0, "wall_seconds": 0.06, "ggc_memory_reported": "0" }, { "name": "repair loop structures", "user_seconds": 0.1, "system_seconds": 0.05, "wall_seconds": 0.1, "ggc_memory_reported": "0" } ], "selected_subsystem_rows": [ { "name": "callgraph construction", "user_seconds": 4.66, "system_seconds": 0.94, "wall_seconds": 5.61, "ggc_memory_reported": "524M" }, { "name": "callgraph functions expansion", "user_seconds": 0.02, "system_seconds": 0.0, "wall_seconds": 0.03, "ggc_memory_reported": "0" }, { "name": "preprocessing", "user_seconds": 3.04, "system_seconds": 4.98, "wall_seconds": 22.38, "ggc_memory_reported": "438M" }, { "name": "parser (global)", "user_seconds": 2.45, "system_seconds": 3.64, "wall_seconds": 6.11, "ggc_memory_reported": "433M" }, { "name": "parser struct body", "user_seconds": 1.59, "system_seconds": 0.96, 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4.33, "system_seconds": 1.4, "wall_seconds": 6.12, "ggc_memory_reported": "1010M" }, { "name": "parser (global)", "user_seconds": 2.45, "system_seconds": 3.64, "wall_seconds": 6.11, "ggc_memory_reported": "433M" } ], "phase_wall_fraction_of_total": { "phase setup": 7.104795737122558e-05, "phase parsing": 0.3401065719360568, "phase lang. deferred": 0.22394316163410302, "phase opt and generate": 0.41428063943161636, "phase last asm": 0.01655417406749556, "phase finalize": 0.005044404973357015 } } ], "evidence_files": { "compiler_log": "/audit/compiler-stages/debug/compiler.log", "compiler_log_sha256": "8184bd175f3c96b18fe29b57ddd35ba40fa108ad1ebe68906d6ffc4770eff7f9", "ccache_log": "/audit/compiler-stages/debug/ccache.log", "ccache_statslog": "/audit/compiler-stages/debug/ccache.statslog", "depfile": "/audit/compiler-stages/debug/fiber_reinforced_elasticity_freq_01.cc.o.d", "object": "/audit/compiler-stages/debug/fiber_reinforced_elasticity_freq_01.cc.o" }, "ccache_results": [ 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The real-compiler interval includes assembler and wrapper work beyond the cc1 TOTAL timer; intervals are not all GCC compiler phase timers." } } ], "interpretation": [ "The GNU TOTAL and phase rows describe this individual compiler invocation. Subsystem timers such as template instantiation and preprocessing overlap those phases and sometimes one another; do not add phase and subsystem rows together.", "GGC is GCC garbage-collected allocation accounting, not resident memory. The external process-time maximum RSS is recorded separately.", "External process wall/user/system includes launcher, ccache, preprocessing/hash work, compiler and assembler; GNU time-report timers cover GCC work rather than the entire launcher process.", "These forced-recaching diagnostic builds preserve all actual Debug/Release flags and prefix maps, add only timing and isolated dependency/output paths, and do not measure normal cache-hit latency.", "The representative final-source local GNU11.4/deal.II9.8 TU is not the original GNU13.3/deal.II9.7.1 hosted CI. No fraction or speedup is extrapolated to other TUs or all CI.", "Only source-file SHA is checked directly here; root freezes the relevant C++ source/header tree while these probes execute." ], "source_revision_after_probe": "7438d9539d8c34c1d8273d80c534a078bf7bb82f", "numeric_source_unchanged_from_prepared_revision": true }, "compiler_stage_provenance": { "original_artifact_sha256": "31c638f594a96f316588257a0e8b67a6279b22ebf0fe852efab3efe9c829f43c", "path_aliases": "Worker source, build, artifact and cache directories are replaced by named placeholders in the published commands; original command/source hashes are preserved.", "scope": "One heavy GoogleTest translation unit in Debug and Release, with diagnostic -ftime-report instrumentation. Timings are not extrapolated to the complete CI or used as a matched Debug/Release speed benchmark." }, "cache_archive_followup_not_implemented": { "schema_version": 1, "status": "read_only_proposal_not_implemented", "action_revision": "5ebbd400eff9e74630f759d94ddd7b6c26299639", "action_tag_used_in_workflow": "hendrikmuhs/ccache-action@v1.2", "sources": { "inputs": "https://github.com/hendrikmuhs/ccache-action/blob/5ebbd400eff9e74630f759d94ddd7b6c26299639/action.yml", "restore_installer": "https://github.com/hendrikmuhs/ccache-action/blob/5ebbd400eff9e74630f759d94ddd7b6c26299639/src/restore.ts", "save": "https://github.com/hendrikmuhs/ccache-action/blob/5ebbd400eff9e74630f759d94ddd7b6c26299639/src/save.ts", "lockfile": "https://github.com/hendrikmuhs/ccache-action/blob/5ebbd400eff9e74630f759d94ddd7b6c26299639/package-lock.json", "exact_dependency": "https://registry.npmjs.org/@actions/cache/-/cache-4.1.0.tgz" }, "dependency_integrity_verified": "sha512-z3Opg+P4Y7baq+g1dODXgdtsvPLSewr3ZKpp3U0HQR1A/vWCoJFS52XSezjdngo4SIOdR5oHtyK3a3Arar+X9A==", "findings": [ "The action exposes update-package-index and max-size but no archive-compression or extra-package input.", "restore.ts installs ccache only when io.which(ccache) finds no existing executable. It installs only ccache via apt-get; it does not install zstd.", "The exact locked @actions/cache4.1.0 dependency probes zstd --quiet --version. Empty output selects gzip; available zstd selects ZstdWithoutLong.", "On GNU/Linux save then passes tar --use-compress-program zstdmt; extraction uses unzstd. Without zstd it uses tar -z.", "The compression method participates in the cache version hash. Installing zstd before restoring cannot reuse the previous gzip-format cache entry, even with the same visible cache key." ], "safe_candidate": [ "Before ccache-action run one apt-get update followed by apt-get install -y --no-install-recommends ccache zstd.", "Set ccache-action update-package-index:false. Because ccache is already present, its installer and apt-get update are skipped; only one package-index update occurs.", "Verify command -v ccache, zstd --quiet --version and archive command in actual action logs; measure equivalent-size restore/save timings and end-to-end walltime." ], "migration_warning": "Switching archive format invalidates reuse of existing gzip cache version for the first zstd-restoring run. Do not mix this with the4GB capacity experiment and then attribute changed hit rate to capacity alone. A container image including ccache and zstd is an alternative, requiring its own image rollout.", "measured_context_seconds": { "old_cache_restore": 10.781, "old_cache_compress_and_save": 30.29, "old_ccache_install": 7.578 }, "expected_savings_seconds": null, "priority": "Secondary: current compress+save is about30seconds of a56minute job. Larger4GB caches can make it more relevant, but no zstd speedup has been measured.", "source_files": [ "actions-cache-4.1.0-cacheUtils.js", "actions-cache-4.1.0-tar.js" ] } }