2026-02-13 08:07.01: New job: test ocaml-multicore/multicore-bench https://github.com/ocaml-multicore/multicore-bench.git#refs/heads/main (efb15d8562dbdc1ba976ffc574de028e3c11c123) (macos-x86_64:macos-homebrew-4.14_opam-2.5) Base: macos-homebrew-ocaml-4.14 Opam project build To reproduce locally: git clone --recursive "https://github.com/ocaml-multicore/multicore-bench.git" -b "main" && cd "multicore-bench" && git reset --hard efb15d85 cat > Dockerfile <<'END-OF-DOCKERFILE' FROM macos-homebrew-ocaml-4.14 # macos-homebrew-4.14_opam-2.5 USER 1000:1000 ENV CLICOLOR_FORCE="1" ENV OPAMCOLOR="always" RUN ln -f ~/local/bin/opam-2.5 ~/local/bin/opam RUN opam init --reinit -ni RUN uname -rs && opam exec -- ocaml -version && opam --version RUN cd ~/opam-repository && (git cat-file -e 302e116c4009da2f5a31c350a57c8b3c9b27289e || git fetch origin master) && git reset -q --hard 302e116c4009da2f5a31c350a57c8b3c9b27289e && git log --no-decorate -n1 --oneline && opam update -u COPY --chown=1000:1000 multicore-bench.opam ./src/./ RUN opam pin add -yn multicore-bench.dev './src/./' RUN echo '(lang dune 3.0)' > './src/./dune-project' ENV DEPS="astring.0.8.5 backoff.0.1.1 base-bigarray.base base-threads.base base-unix.base camlp-streams.5.0.1 cmdliner.2.1.0 cppo.1.8.0 csexp.1.5.2 domain-local-await.1.0.1 domain_shims.0.1.0 dune.3.21.1 fmt.0.11.0 logs.0.10.0 mdx.2.5.1 mtime.2.1.0 multicore-magic.2.3.2 ocaml.4.14.2 ocaml-base-compiler.4.14.2 ocaml-config.2 ocaml-options-vanilla.1 ocaml-version.4.0.3 ocamlbuild.0.16.1 ocamlfind.1.9.8 re.1.14.0 result.1.5 thread-table.1.0.0 topkg.1.1.1 yojson.3.0.0" ENV CI="true" ENV OCAMLCI="true" RUN opam update --depexts && opam install --cli=2.5 --depext-only -y multicore-bench.dev $DEPS RUN opam install $DEPS COPY --chown=1000:1000 . ./src RUN cd ./src && opam exec -- dune build @install @check @runtest && rm -rf _build END-OF-DOCKERFILE docker build . END-REPRO-BLOCK 2026-02-13 08:07.01: Using cache hint "ocaml-multicore/multicore-bench-macos-homebrew-ocaml-4.14-macos-homebrew-4.14_opam-2.5-3276ee940043c1e69634f204ac603fad" 2026-02-13 08:07.01: Using OBuilder spec: ((from macos-homebrew-ocaml-4.14) (comment macos-homebrew-4.14_opam-2.5) (user (uid 1000) (gid 1000)) (env CLICOLOR_FORCE 1) (env OPAMCOLOR always) (run (shell "ln -f ~/local/bin/opam-2.5 ~/local/bin/opam")) (run (shell "opam init --reinit -ni")) (run (shell "uname -rs && opam exec -- ocaml -version && opam --version")) (run (cache (opam-archives (target /Users/mac1000/.opam/download-cache)) (homebrew (target /Users/mac1000/Library/Caches/Homebrew))) (network host) (shell "cd ~/opam-repository && (git cat-file -e 302e116c4009da2f5a31c350a57c8b3c9b27289e || git fetch origin master) && git reset -q --hard 302e116c4009da2f5a31c350a57c8b3c9b27289e && git log --no-decorate -n1 --oneline && opam update -u")) (copy (src multicore-bench.opam) (dst ./src/./)) (run (network host) (shell "opam pin add -yn multicore-bench.dev './src/./'")) (run (network host) (shell "echo '(lang dune 3.0)' > './src/./dune-project'")) (env DEPS "astring.0.8.5 backoff.0.1.1 base-bigarray.base base-threads.base base-unix.base camlp-streams.5.0.1 cmdliner.2.1.0 cppo.1.8.0 csexp.1.5.2 domain-local-await.1.0.1 domain_shims.0.1.0 dune.3.21.1 fmt.0.11.0 logs.0.10.0 mdx.2.5.1 mtime.2.1.0 multicore-magic.2.3.2 ocaml.4.14.2 ocaml-base-compiler.4.14.2 ocaml-config.2 ocaml-options-vanilla.1 ocaml-version.4.0.3 ocamlbuild.0.16.1 ocamlfind.1.9.8 re.1.14.0 result.1.5 thread-table.1.0.0 topkg.1.1.1 yojson.3.0.0") (env CI true) (env OCAMLCI true) (run (cache (opam-archives (target /Users/mac1000/.opam/download-cache)) (homebrew (target /Users/mac1000/Library/Caches/Homebrew))) (network host) (shell "opam update --depexts && opam install --cli=2.5 --depext-only -y multicore-bench.dev $DEPS")) (run (cache (opam-archives (target /Users/mac1000/.opam/download-cache)) (homebrew (target /Users/mac1000/Library/Caches/Homebrew))) (network host) (shell "opam install $DEPS")) (copy (src .) (dst ./src)) (run (shell "cd ./src && opam exec -- dune build @install @check @runtest && rm -rf _build")) ) 2026-02-13 08:07.01: Waiting for resource in pool OCluster 2026-02-13 11:25.34: Waiting for worker… 2026-02-13 14:36.11: Got resource from pool OCluster Building on i7-worker-01 Initialized empty Git repository in /private/var/lib/ocluster-worker/git/multicore-bench.git-b64f3a44a0cd11cb5d9a386b4ded860bff164371/.git/ HEAD is now at efb15d8 Inline `Atomic` and `Ref` ops and unroll (from macos-homebrew-ocaml-4.14) 2026-02-13 14:36.14 ---> using "0c60f117aee57abea8364cb033d47bb1d63ff0f68e5ee97378e032498e8442af" from cache /: (comment macos-homebrew-4.14_opam-2.5) /: (user (uid 1000) (gid 1000)) /: (env CLICOLOR_FORCE 1) /: (env OPAMCOLOR always) /: (run (shell "ln -f ~/local/bin/opam-2.5 ~/local/bin/opam")) 2026-02-13 14:36.14 ---> using "75b1629629d7f21c50a7e1e39b2ef83e2edb8ace81aab34254c0c8782b814749" from cache /: (run (shell "opam init --reinit -ni")) No configuration file found, using built-in defaults. Checking for available remotes: rsync and local, git. - you won't be able to use mercurial repositories unless you install the hg command on your system. - you won't be able to use darcs repositories unless you install the darcs command on your system. This version of opam requires an update to the layout of /Users/mac1000/.opam from version 2.1 to version 2.2, which can't be reverted. You may want to back it up before going further. Continue? [Y/n] y [NOTE] The 'jobs' option was reset, its value was 1 and its new value will vary according to the current number of cores on your machine. You can restore the fixed value using: opam option jobs=1 --global Format upgrade done. <><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><> [default] no changes from git+file:///Users/mac1000/opam-repository 2026-02-13 14:36.14 ---> using "a61e945ab7671a6fff400f946e3fe88df4d67a783ea1f56fa59dc21595ef1b19" from cache /: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version")) Darwin 24.5.0 The OCaml toplevel, version 4.14.2 2.5.0 2026-02-13 14:36.15 ---> using "11a9923a4c4f0ab256d15330129e4c4938459d2e6239eb4f7bdf0f2620300e09" from cache /: (run (cache (opam-archives (target /Users/mac1000/.opam/download-cache)) (homebrew (target /Users/mac1000/Library/Caches/Homebrew))) (network host) (shell "cd ~/opam-repository && (git cat-file -e 302e116c4009da2f5a31c350a57c8b3c9b27289e || git fetch origin master) && git reset -q --hard 302e116c4009da2f5a31c350a57c8b3c9b27289e && git log --no-decorate -n1 --oneline && opam update -u")) From https://github.com/ocaml/opam-repository * branch master -> FETCH_HEAD 4c9d80b731..302e116c40 master -> origin/master 302e116c40 Merge pull request #29374 from shonfeder/release-dune-3.21.1 <><> Updating package repositories ><><><><><><><><><><><><><><><><><><><><><><> [default] synchronised from git+file:///Users/mac1000/opam-repository Everything as up-to-date as possible The following packages are not being upgraded because the new versions conflict with other installed packages: - ocaml.5.4.0 - ocaml-config.3 However, you may "opam upgrade" these packages explicitly at these versions (e.g. "opam upgrade ocaml.5.4.0"), which will ask permission to downgrade or uninstall the conflicting packages. Nothing to do. # To update the current shell environment, run: eval $(opam env) 2026-02-13 14:36.15 ---> using "8e0a049cf56382e71efda2842d05633f0e6e6b1ee13eef2b96740d32a526d9ad" from cache /: (copy (src multicore-bench.opam) (dst ./src/./)) 2026-02-13 14:36.17 ---> saved as "795c8048fc309459419e0ed5c8b0d753a2c344c837821e3294623384d25058c9" /: (run (network host) (shell "opam pin add -yn multicore-bench.dev './src/./'")) [multicore-bench.dev] synchronised (file:///Users/mac1000/src) multicore-bench is now pinned to file:///Users/mac1000/src (version dev) 2026-02-13 14:36.36 ---> saved as "6a2e8211745240f121a124bb2fe390a97481d5e87d8683a7e56fedb96f2d9ef1" /: (run (network host) (shell "echo '(lang dune 3.0)' > './src/./dune-project'")) 2026-02-13 14:36.37 ---> saved as "c8617614536e871178fcc357817ba8db24f8bf1b8c218297ca6e7f910dc33d7e" /: (env DEPS "astring.0.8.5 backoff.0.1.1 base-bigarray.base base-threads.base base-unix.base camlp-streams.5.0.1 cmdliner.2.1.0 cppo.1.8.0 csexp.1.5.2 domain-local-await.1.0.1 domain_shims.0.1.0 dune.3.21.1 fmt.0.11.0 logs.0.10.0 mdx.2.5.1 mtime.2.1.0 multicore-magic.2.3.2 ocaml.4.14.2 ocaml-base-compiler.4.14.2 ocaml-config.2 ocaml-options-vanilla.1 ocaml-version.4.0.3 ocamlbuild.0.16.1 ocamlfind.1.9.8 re.1.14.0 result.1.5 thread-table.1.0.0 topkg.1.1.1 yojson.3.0.0") /: (env CI true) /: (env OCAMLCI true) /: (run (cache (opam-archives (target /Users/mac1000/.opam/download-cache)) (homebrew (target /Users/mac1000/Library/Caches/Homebrew))) (network host) (shell "opam update --depexts && opam install --cli=2.5 --depext-only -y multicore-bench.dev $DEPS")) + /usr/local/bin/brew "update" - ==> Updating Homebrew... - Already up-to-date. <><> Synchronising pinned packages ><><><><><><><><><><><><><><><><><><><><><><> [multicore-bench.dev] synchronised (file:///Users/mac1000/src) [NOTE] Package ocaml-options-vanilla is already installed (current version is 1). [NOTE] Package ocaml-config is already installed (current version is 2). [NOTE] Package ocaml-base-compiler is already installed (current version is 4.14.2). [NOTE] Package ocaml is already installed (current version is 4.14.2). [NOTE] Package base-unix is already installed (current version is base). [NOTE] Package base-threads is already installed (current version is base). [NOTE] Package base-bigarray is already installed (current version is base). # To update the current shell environment, run: eval $(opam env) 2026-02-13 14:37.04 ---> saved as "5dfdf41336794befc988f9ee4701a2386ff72264ed91fcef1236307d650b6eef" /: (run (cache (opam-archives (target /Users/mac1000/.opam/download-cache)) (homebrew (target /Users/mac1000/Library/Caches/Homebrew))) (network host) (shell "opam install $DEPS")) [NOTE] Package ocaml-options-vanilla is already installed (current version is 1). [NOTE] Package ocaml-config is already installed (current version is 2). [NOTE] Package ocaml-base-compiler is already installed (current version is 4.14.2). [NOTE] Package ocaml is already installed (current version is 4.14.2). [NOTE] Package base-unix is already installed (current version is base). [NOTE] Package base-threads is already installed (current version is base). [NOTE] Package base-bigarray is already installed (current version is base). The following actions will be performed: === install 22 packages - install astring 0.8.5 - install backoff 0.1.1 - install camlp-streams 5.0.1 - install cmdliner 2.1.0 - install cppo 1.8.0 - install csexp 1.5.2 - install domain-local-await 1.0.1 - install domain_shims 0.1.0 - install dune 3.21.1 - install fmt 0.11.0 - install logs 0.10.0 - install mdx 2.5.1 - install mtime 2.1.0 - install multicore-magic 2.3.2 - install ocaml-version 4.0.3 - install ocamlbuild 0.16.1 - install ocamlfind 1.9.8 - install re 1.14.0 - install result 1.5 - install thread-table 1.0.0 - install topkg 1.1.1 - install yojson 3.0.0 <><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><> -> retrieved camlp-streams.5.0.1 (cached) -> retrieved backoff.0.1.1 (cached) -> retrieved astring.0.8.5 (cached) -> retrieved csexp.1.5.2 (cached) -> retrieved cppo.1.8.0 (cached) -> retrieved domain-local-await.1.0.1 (cached) -> retrieved domain_shims.0.1.0 (cached) -> retrieved cmdliner.2.1.0 (cached) -> retrieved fmt.0.11.0 (cached) -> retrieved logs.0.10.0 (cached) -> retrieved mtime.2.1.0 (cached) -> retrieved multicore-magic.2.3.2 (cached) -> retrieved ocaml-version.4.0.3 (cached) -> retrieved mdx.2.5.1 (cached) -> retrieved ocamlbuild.0.16.1 (cached) -> retrieved re.1.14.0 (cached) -> retrieved ocamlfind.1.9.8 (cached) -> retrieved thread-table.1.0.0 (cached) -> retrieved result.1.5 (cached) -> retrieved topkg.1.1.1 (cached) -> retrieved yojson.3.0.0 (cached) -> retrieved dune.3.21.1 (cached) -> installed cmdliner.2.1.0 -> installed ocamlbuild.0.16.1 -> installed ocamlfind.1.9.8 -> installed topkg.1.1.1 -> installed mtime.2.1.0 -> installed fmt.0.11.0 -> installed astring.0.8.5 -> installed logs.0.10.0 -> installed dune.3.21.1 -> installed domain_shims.0.1.0 -> installed result.1.5 -> installed camlp-streams.5.0.1 -> installed csexp.1.5.2 -> installed backoff.0.1.1 -> installed thread-table.1.0.0 -> installed multicore-magic.2.3.2 -> installed ocaml-version.4.0.3 -> installed domain-local-await.1.0.1 -> installed cppo.1.8.0 -> installed yojson.3.0.0 -> installed re.1.14.0 -> installed mdx.2.5.1 Done. # To update the current shell environment, run: eval $(opam env) 2026-02-13 14:38.10 ---> saved as "ddcdbf7b9407560e2016d579c8c93e9d08c79e4ed9b87d794247b81007d25e65" /: (copy (src .) (dst ./src)) 2026-02-13 14:38.11 ---> saved as "07cecf0875ac26b66bf136cff696a475d2aefbbc22c682260978f05b440eab4f" /: (run (shell "cd ./src && opam exec -- dune build @install @check @runtest && rm -rf _build")) (cd _build/default/bench && ./main.exe -brief) Atomic: ops over time/cas int: 189.26 M/s ops over time/get: 2746.95 M/s ops over time/incr: 461.06 M/s ops over time/push & pop: 101.31 M/s ops over time/swap: 120.20 M/s ops over time/xchg int: 187.37 M/s time per op/cas int: 5.28 ns time per op/get: 0.36 ns time per op/incr: 2.17 ns time per op/push & pop: 9.87 ns time per op/swap: 8.32 ns time per op/xchg int: 5.34 ns Atomic incr: ops over time/CAS, 1 domains: 176.32 M/s ops over time/CAS with backoff, 1 domains: 181.73 M/s ops over time/Incr, 1 domains: 411.87 M/s time per op/CAS, 1 domains: 5.67 ns time per op/CAS with backoff, 1 domains: 5.50 ns time per op/Incr, 1 domains: 2.43 ns Bounded_q: messages over time/one domain: 8.90 M/s time per message/one domain: 112.37 ns Hashtbl: operations over time/1 worker, 10% reads: 12.39 M/s operations over time/1 worker, 50% reads: 12.15 M/s operations over time/1 worker, 90% reads: 13.39 M/s operations over time/2 workers, 10% reads: 12.21 M/s operations over time/2 workers, 50% reads: 12.33 M/s operations over time/2 workers, 90% reads: 13.36 M/s operations over time/4 workers, 10% reads: 12.39 M/s operations over time/4 workers, 50% reads: 12.26 M/s operations over time/4 workers, 90% reads: 11.77 M/s operations over time/8 workers, 10% reads: 12.24 M/s operations over time/8 workers, 50% reads: 12.16 M/s operations over time/8 workers, 90% reads: 13.21 M/s operations over time/one domain, 10% reads: 20.87 M/s operations over time/one domain, 50% reads: 20.64 M/s operations over time/one domain, 90% reads: 23.00 M/s time per operation/1 worker, 10% reads: 80.72 ns time per operation/1 worker, 50% reads: 82.31 ns time per operation/1 worker, 90% reads: 74.66 ns time per operation/2 workers, 10% reads: 163.75 ns time per operation/2 workers, 50% reads: 162.19 ns time per operation/2 workers, 90% reads: 149.71 ns time per operation/4 workers, 10% reads: 322.72 ns time per operation/4 workers, 50% reads: 326.41 ns time per operation/4 workers, 90% reads: 339.91 ns time per operation/8 workers, 10% reads: 653.79 ns time per operation/8 workers, 50% reads: 658.16 ns time per operation/8 workers, 90% reads: 605.50 ns time per operation/one domain, 10% reads: 47.92 ns time per operation/one domain, 50% reads: 48.44 ns time per operation/one domain, 90% reads: 43.47 ns Queue: messages over time/one domain: 35.32 M/s time per message/one domain: 28.31 ns Ref with Mutex: ops over time/cas int: 20.69 M/s ops over time/get: 22.06 M/s ops over time/incr: 21.91 M/s ops over time/push & pop: 19.95 M/s ops over time/swap: 19.79 M/s ops over time/xchg int: 20.68 M/s time per op/cas int: 48.34 ns time per op/get: 45.34 ns time per op/incr: 45.64 ns time per op/push & pop: 50.12 ns time per op/swap: 50.53 ns time per op/xchg int: 48.36 ns Ref with [@poll error]: ops over time/cas int: 181.80 M/s ops over time/get: 2746.83 M/s ops over time/incr: 562.05 M/s ops over time/push & pop: 94.81 M/s ops over time/swap: 116.58 M/s ops over time/xchg int: 189.22 M/s time per op/cas int: 5.50 ns time per op/get: 0.36 ns time per op/incr: 1.78 ns time per op/push & pop: 10.55 ns time per op/swap: 8.58 ns time per op/xchg int: 5.28 ns Stack: messages over time/one domain: 42.95 M/s time per message/one domain: 23.28 ns Unix: blocking reads over time/1 worker: 0.54 M/s time per blocking read/1 worker: 1851.78 ns 2026-02-13 14:38.17 ---> saved as "62f14f88d28847cb2a67ade974cab62f66789d29f40016027e8b670f5abf7280" Job succeeded 2026-02-13 14:38.23: Job succeeded