2025-06-12 14:21.29: New job: test ocaml-multicore/multicore-bench https://github.com/ocaml-multicore/multicore-bench.git#refs/heads/main (d2dcd9f17eb27ef2e967e6e40389827f80fd9514) (linux-x86_64:alpine-3.21-5.3_opam-2.3) Base: ocaml/opam:alpine-3.21-ocaml-5.3@sha256:3343dcc8eef8cc135210194424c75ebe26927358b1a48d0c3c0860cfe43df613 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 d2dcd9f1 cat > Dockerfile <<'END-OF-DOCKERFILE' FROM ocaml/opam:alpine-3.21-ocaml-5.3@sha256:3343dcc8eef8cc135210194424c75ebe26927358b1a48d0c3c0860cfe43df613 # alpine-3.21-5.3_opam-2.3 USER 1000:1000 ENV CLICOLOR_FORCE="1" ENV OPAMCOLOR="always" WORKDIR /src RUN sudo ln -f /usr/bin/opam-2.3 /usr/bin/opam RUN opam init --reinit -ni RUN uname -rs && opam exec -- ocaml -version && opam --version WORKDIR /src RUN sudo chown opam /src RUN cd ~/opam-repository && (git cat-file -e a28eb8a148feb4fbc6466fa0791668993513dbde || git fetch origin master) && git reset -q --hard a28eb8a148feb4fbc6466fa0791668993513dbde && git log --no-decorate -n1 --oneline && opam update -u COPY --chown=1000:1000 multicore-bench.opam ./ RUN opam pin add -yn multicore-bench.dev './' RUN echo '(lang dune 3.0)' > './dune-project' ENV DEPS="astring.0.8.5 backoff.0.1.1 base-bigarray.base base-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base camlp-streams.5.0.1 cmdliner.1.3.0 cppo.1.8.0 csexp.1.5.2 domain-local-await.1.0.1 domain_shims.0.1.0 dune.3.19.1 fmt.0.10.0 logs.0.8.0 mdx.2.5.0 mtime.2.1.0 multicore-magic.2.3.1 ocaml.5.3.0 ocaml-base-compiler.5.3.0 ocaml-compiler.5.3.0 ocaml-config.3 ocaml-options-vanilla.1 ocaml-version.4.0.1 ocamlbuild.0.16.1 ocamlfind.1.9.8 re.1.12.0 result.1.5 seq.base thread-table.1.0.0 topkg.1.0.8 yojson.3.0.0" ENV CI="true" ENV OCAMLCI="true" RUN opam update --depexts && opam install --cli=2.3 --depext-only -y multicore-bench.dev $DEPS RUN opam install $DEPS COPY --chown=1000:1000 . /src RUN opam exec -- dune build @install @check @runtest && rm -rf _build END-OF-DOCKERFILE docker build . END-REPRO-BLOCK 2025-06-12 14:21.29: Using cache hint "ocaml-multicore/multicore-bench-ocaml/opam:alpine-3.21-ocaml-5.3@sha256:3343dcc8eef8cc135210194424c75ebe26927358b1a48d0c3c0860cfe43df613-alpine-3.21-5.3_opam-2.3-10db08213cc6d5aab31cc60439730334" 2025-06-12 14:21.29: Using OBuilder spec: ((from ocaml/opam:alpine-3.21-ocaml-5.3@sha256:3343dcc8eef8cc135210194424c75ebe26927358b1a48d0c3c0860cfe43df613) (comment alpine-3.21-5.3_opam-2.3) (user (uid 1000) (gid 1000)) (env CLICOLOR_FORCE 1) (env OPAMCOLOR always) (workdir /src) (run (shell "sudo ln -f /usr/bin/opam-2.3 /usr/bin/opam")) (run (shell "opam init --reinit -ni")) (run (shell "uname -rs && opam exec -- ocaml -version && opam --version")) (workdir /src) (run (shell "sudo chown opam /src")) (run (cache (opam-archives (target /home/opam/.opam/download-cache))) (network host) (shell "cd ~/opam-repository && (git cat-file -e a28eb8a148feb4fbc6466fa0791668993513dbde || git fetch origin master) && git reset -q --hard a28eb8a148feb4fbc6466fa0791668993513dbde && git log --no-decorate -n1 --oneline && opam update -u")) (copy (src multicore-bench.opam) (dst ./)) (run (network host) (shell "opam pin add -yn multicore-bench.dev './'")) (run (network host) (shell "echo '(lang dune 3.0)' > './dune-project'")) (env DEPS "astring.0.8.5 backoff.0.1.1 base-bigarray.base base-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base camlp-streams.5.0.1 cmdliner.1.3.0 cppo.1.8.0 csexp.1.5.2 domain-local-await.1.0.1 domain_shims.0.1.0 dune.3.19.1 fmt.0.10.0 logs.0.8.0 mdx.2.5.0 mtime.2.1.0 multicore-magic.2.3.1 ocaml.5.3.0 ocaml-base-compiler.5.3.0 ocaml-compiler.5.3.0 ocaml-config.3 ocaml-options-vanilla.1 ocaml-version.4.0.1 ocamlbuild.0.16.1 ocamlfind.1.9.8 re.1.12.0 result.1.5 seq.base thread-table.1.0.0 topkg.1.0.8 yojson.3.0.0") (env CI true) (env OCAMLCI true) (run (cache (opam-archives (target /home/opam/.opam/download-cache))) (network host) (shell "opam update --depexts && opam install --cli=2.3 --depext-only -y multicore-bench.dev $DEPS")) (run (cache (opam-archives (target /home/opam/.opam/download-cache))) (network host) (shell "opam install $DEPS")) (copy (src .) (dst /src)) (run (shell "opam exec -- dune build @install @check @runtest && rm -rf _build")) ) 2025-06-12 14:21.29: Waiting for resource in pool OCluster 2025-06-12 19:18.51: Waiting for worker… 2025-06-12 19:21.23: Got resource from pool OCluster Building on asteria.caelum.ci.dev All commits already cached HEAD is now at d2dcd9f Try to avoid false sharing (from ocaml/opam:alpine-3.21-ocaml-5.3@sha256:3343dcc8eef8cc135210194424c75ebe26927358b1a48d0c3c0860cfe43df613) 2025-06-12 19:21.23 ---> using "3141b9cf5ba038771635d2742247938bc41e269100016f85aeafaf7cfcddc947" from cache /: (comment alpine-3.21-5.3_opam-2.3) /: (user (uid 1000) (gid 1000)) /: (env CLICOLOR_FORCE 1) /: (env OPAMCOLOR always) /: (workdir /src) /src: (run (shell "sudo ln -f /usr/bin/opam-2.3 /usr/bin/opam")) 2025-06-12 19:21.23 ---> using "80b751ed47c43451e88cd0293ed9a635ccea08011eeda4114e7ec036c06c48a3" from cache /src: (run (shell "opam init --reinit -ni")) Configuring from /home/opam/.opamrc and then from 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 development version of opam requires an update to the layout of /home/opam/.opam from version 2.0 to version 2.2, which can't be reverted. You may want to back it up before going further. Continue? [y/n] y Format upgrade done. <><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><> [default] Initialised 2025-06-12 19:21.23 ---> using "6c30ca4e379a499434293ac7ae4ccb6757139c93d8bc5916b7557572123e5ba0" from cache /src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version")) Linux 5.15.0-134-generic The OCaml toplevel, version 5.3.0 2.3.0 2025-06-12 19:21.23 ---> using "a3df42546ff5706a2753d5e221aadf5e7ea87ec715342ceb488042e5402600c3" from cache /src: (workdir /src) /src: (run (shell "sudo chown opam /src")) 2025-06-12 19:21.23 ---> using "17ab95ba4820eaae0552c498f14e3328c5320ed844b460f0519c8783adab646a" from cache /src: (run (cache (opam-archives (target /home/opam/.opam/download-cache))) (network host) (shell "cd ~/opam-repository && (git cat-file -e a28eb8a148feb4fbc6466fa0791668993513dbde || git fetch origin master) && git reset -q --hard a28eb8a148feb4fbc6466fa0791668993513dbde && git log --no-decorate -n1 --oneline && opam update -u")) From https://github.com/ocaml/opam-repository * branch master -> FETCH_HEAD bc726805e3..a28eb8a148 master -> origin/master a28eb8a148 Merge pull request #28017 from maiste/release-dune-3.19.1 <><> Updating package repositories ><><><><><><><><><><><><><><><><><><><><><><> [default] synchronised from git+file:///home/opam/opam-repository Everything as up-to-date as possible (run with --verbose to show unavailable upgrades). However, you may "opam upgrade" these packages explicitly, which will ask permission to downgrade or uninstall the conflicting packages. Nothing to do. # To update the current shell environment, run: eval $(opam env) 2025-06-12 19:21.23 ---> using "2f588d97adf599c68da8b5e4e08a15a5bc0bea13c16baed8e756f89965931856" from cache /src: (copy (src multicore-bench.opam) (dst ./)) 2025-06-12 19:21.24 ---> saved as "27bf18c866ea46164418f50c057c5bc4f3f37ba098a11c1947ba46afa68b83b2" /src: (run (network host) (shell "opam pin add -yn multicore-bench.dev './'")) [multicore-bench.dev] synchronised (file:///src) multicore-bench is now pinned to file:///src (version dev) 2025-06-12 19:21.26 ---> saved as "266681227d018b33f891b9c67450b394586833bb1332bd767311dbafab753d18" /src: (run (network host) (shell "echo '(lang dune 3.0)' > './dune-project'")) 2025-06-12 19:21.26 ---> saved as "fa3cc13e3dde0cf87b63dbbaa58e172c0c268f33fa95f1c66763b14edc8adb5b" /src: (env DEPS "astring.0.8.5 backoff.0.1.1 base-bigarray.base base-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base camlp-streams.5.0.1 cmdliner.1.3.0 cppo.1.8.0 csexp.1.5.2 domain-local-await.1.0.1 domain_shims.0.1.0 dune.3.19.1 fmt.0.10.0 logs.0.8.0 mdx.2.5.0 mtime.2.1.0 multicore-magic.2.3.1 ocaml.5.3.0 ocaml-base-compiler.5.3.0 ocaml-compiler.5.3.0 ocaml-config.3 ocaml-options-vanilla.1 ocaml-version.4.0.1 ocamlbuild.0.16.1 ocamlfind.1.9.8 re.1.12.0 result.1.5 seq.base thread-table.1.0.0 topkg.1.0.8 yojson.3.0.0") /src: (env CI true) /src: (env OCAMLCI true) /src: (run (cache (opam-archives (target /home/opam/.opam/download-cache))) (network host) (shell "opam update --depexts && opam install --cli=2.3 --depext-only -y multicore-bench.dev $DEPS")) + /usr/bin/sudo "apk" "update" - fetch https://dl-cdn.alpinelinux.org/alpine/v3.21/main/x86_64/APKINDEX.tar.gz - fetch https://dl-cdn.alpinelinux.org/alpine/v3.21/community/x86_64/APKINDEX.tar.gz - fetch https://dl-cdn.alpinelinux.org/alpine/edge/main/x86_64/APKINDEX.tar.gz - fetch https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz - fetch https://dl-cdn.alpinelinux.org/alpine/edge/testing/x86_64/APKINDEX.tar.gz - v3.21.3-603-g364e1f9788f [https://dl-cdn.alpinelinux.org/alpine/v3.21/main] - v3.21.3-602-gf01bbdd96f0 [https://dl-cdn.alpinelinux.org/alpine/v3.21/community] - v3.23.0_alpha20250612-31-g27f3e5633d0 [https://dl-cdn.alpinelinux.org/alpine/edge/main] - v3.23.0_alpha20250612-4-g040ffd45b32 [https://dl-cdn.alpinelinux.org/alpine/edge/community] - v3.23.0_alpha20250612-4-g040ffd45b32 [https://dl-cdn.alpinelinux.org/alpine/edge/testing] - OK: 58711 distinct packages available <><> Synchronising pinned packages ><><><><><><><><><><><><><><><><><><><><><><> [multicore-bench.dev] synchronised (file:///src) [NOTE] Package ocaml-options-vanilla is already installed (current version is 1). [NOTE] Package ocaml-config is already installed (current version is 3). [NOTE] Package ocaml-compiler is already installed (current version is 5.3.0). [NOTE] Package ocaml-base-compiler is already installed (current version is 5.3.0). [NOTE] Package ocaml is already installed (current version is 5.3.0). [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-nnp is already installed (current version is base). [NOTE] Package base-effects is already installed (current version is base). [NOTE] Package base-domains is already installed (current version is base). [NOTE] Package base-bigarray is already installed (current version is base). 2025-06-12 19:21.38 ---> saved as "6ecc5989c469d1aeff2388f97482566c3e96a788a127875808a4984097db534e" /src: (run (cache (opam-archives (target /home/opam/.opam/download-cache))) (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 3). [NOTE] Package ocaml-compiler is already installed (current version is 5.3.0). [NOTE] Package ocaml-base-compiler is already installed (current version is 5.3.0). [NOTE] Package ocaml is already installed (current version is 5.3.0). [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-nnp is already installed (current version is base). [NOTE] Package base-effects is already installed (current version is base). [NOTE] Package base-domains 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 23 packages - install astring 0.8.5 - install backoff 0.1.1 - install camlp-streams 5.0.1 - install cmdliner 1.3.0 - 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 3.19.1 - install fmt 0.10.0 - install logs 0.8.0 - install mdx 2.5.0 - install mtime 2.1.0 - install multicore-magic 2.3.1 - install ocaml-version 4.0.1 - install ocamlbuild 0.16.1 - install ocamlfind 1.9.8 - install re 1.12.0 - install result 1.5 - install seq base - install thread-table 1.0.0 - install topkg 1.0.8 - install yojson 3.0.0 <><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><> -> retrieved backoff.0.1.1 (cached) -> retrieved astring.0.8.5 (cached) -> retrieved camlp-streams.5.0.1 (cached) -> retrieved cppo.1.8.0 (cached) -> retrieved cmdliner.1.3.0 (cached) -> retrieved csexp.1.5.2 (cached) -> retrieved domain-local-await.1.0.1 (cached) -> retrieved domain_shims.0.1.0 (cached) -> retrieved fmt.0.10.0 (cached) -> retrieved logs.0.8.0 (cached) -> retrieved mtime.2.1.0 (cached) -> retrieved mdx.2.5.0 (cached) -> retrieved multicore-magic.2.3.1 (cached) -> retrieved ocaml-version.4.0.1 (cached) -> retrieved ocamlfind.1.9.8 (cached) -> retrieved ocamlbuild.0.16.1 (cached) -> retrieved re.1.12.0 (cached) -> retrieved seq.base (cached) -> installed seq.base -> retrieved result.1.5 (cached) -> retrieved thread-table.1.0.0 (cached) -> retrieved topkg.1.0.8 (cached) -> retrieved yojson.3.0.0 (cached) -> retrieved dune.3.19.1 (cached) -> installed cmdliner.1.3.0 -> installed ocamlbuild.0.16.1 -> installed ocamlfind.1.9.8 -> installed topkg.1.0.8 -> installed mtime.2.1.0 -> installed fmt.0.10.0 -> installed astring.0.8.5 -> installed logs.0.8.0 -> installed dune.3.19.1 -> installed domain_shims.0.1.0 -> installed csexp.1.5.2 -> installed backoff.0.1.1 -> installed result.1.5 -> installed thread-table.1.0.0 -> installed ocaml-version.4.0.1 -> installed multicore-magic.2.3.1 -> installed camlp-streams.5.0.1 -> installed domain-local-await.1.0.1 -> installed re.1.12.0 -> installed cppo.1.8.0 -> installed yojson.3.0.0 -> installed mdx.2.5.0 Done. # To update the current shell environment, run: eval $(opam env) 2025-06-12 19:22.15 ---> saved as "dfd97994eb1b5df3507776e97c9548362f82916d63104c84108c5bd284c5609d" /src: (copy (src .) (dst /src)) 2025-06-12 19:22.16 ---> saved as "a7a2d92da4eddcf9495f6a43f13fb1ba431010e827064c01708f88db79c84841" /src: (run (shell "opam exec -- dune build @install @check @runtest && rm -rf _build")) (cd _build/default/bench && ./main.exe -brief) Atomic: ops over time/cas int: 150.41 M/s ops over time/get: 501.53 M/s ops over time/incr: 173.33 M/s ops over time/push & pop: 56.19 M/s ops over time/swap: 110.61 M/s ops over time/xchg int: 159.98 M/s time per op/cas int: 6.65 ns time per op/get: 1.99 ns time per op/incr: 5.77 ns time per op/push & pop: 17.80 ns time per op/swap: 9.04 ns time per op/xchg int: 6.25 ns Atomic incr: ops over time/CAS, 1 domains: 156.46 M/s ops over time/CAS, 2 domains: 59.56 M/s ops over time/CAS, 4 domains: 57.84 M/s ops over time/CAS, 8 domains: 56.76 M/s ops over time/CAS with backoff, 1 domains: 157.73 M/s ops over time/CAS with backoff, 2 domains: 125.80 M/s ops over time/CAS with backoff, 4 domains: 48.26 M/s ops over time/CAS with backoff, 8 domains: 34.13 M/s ops over time/Incr, 1 domains: 175.95 M/s ops over time/Incr, 2 domains: 92.37 M/s ops over time/Incr, 4 domains: 86.98 M/s ops over time/Incr, 8 domains: 72.27 M/s time per op/CAS, 1 domains: 6.39 ns time per op/CAS, 2 domains: 33.58 ns time per op/CAS, 4 domains: 69.16 ns time per op/CAS, 8 domains: 140.93 ns time per op/CAS with backoff, 1 domains: 6.34 ns time per op/CAS with backoff, 2 domains: 15.90 ns time per op/CAS with backoff, 4 domains: 82.88 ns time per op/CAS with backoff, 8 domains: 234.39 ns time per op/Incr, 1 domains: 5.68 ns time per op/Incr, 2 domains: 21.65 ns time per op/Incr, 4 domains: 45.99 ns time per op/Incr, 8 domains: 110.70 ns Bounded_q: messages over time/1 adder, 1 taker: 2.68 M/s messages over time/1 adder, 2 takers: 1.87 M/s messages over time/1 adder, 4 takers: 1.40 M/s messages over time/2 adders, 1 taker: 1.62 M/s messages over time/2 adders, 2 takers: 1.19 M/s messages over time/2 adders, 4 takers: 1.08 M/s messages over time/4 adders, 1 taker: 1.57 M/s messages over time/4 adders, 2 takers: 1.19 M/s messages over time/4 adders, 4 takers: 0.69 M/s messages over time/one domain: 10.57 M/s time per message/1 adder, 1 taker: 745.26 ns time per message/1 adder, 2 takers: 1603.09 ns time per message/1 adder, 4 takers: 3571.83 ns time per message/2 adders, 1 taker: 1847.29 ns time per message/2 adders, 2 takers: 3355.98 ns time per message/2 adders, 4 takers: 5535.12 ns time per message/4 adders, 1 taker: 3193.44 ns time per message/4 adders, 2 takers: 5062.86 ns time per message/4 adders, 4 takers: 11629.62 ns time per message/one domain: 94.65 ns Hashtbl: operations over time/1 worker, 10% reads: 15.32 M/s operations over time/1 worker, 50% reads: 15.50 M/s operations over time/1 worker, 90% reads: 18.10 M/s operations over time/2 workers, 10% reads: 2.51 M/s operations over time/2 workers, 50% reads: 5.84 M/s operations over time/2 workers, 90% reads: 4.01 M/s operations over time/4 workers, 10% reads: 1.84 M/s operations over time/4 workers, 50% reads: 1.79 M/s operations over time/4 workers, 90% reads: 2.71 M/s operations over time/8 workers, 10% reads: 1.37 M/s operations over time/8 workers, 50% reads: 1.56 M/s operations over time/8 workers, 90% reads: 2.23 M/s operations over time/one domain, 10% reads: 24.88 M/s operations over time/one domain, 50% reads: 25.10 M/s operations over time/one domain, 90% reads: 35.09 M/s time per operation/1 worker, 10% reads: 65.27 ns time per operation/1 worker, 50% reads: 64.53 ns time per operation/1 worker, 90% reads: 55.25 ns time per operation/2 workers, 10% reads: 796.70 ns time per operation/2 workers, 50% reads: 342.76 ns time per operation/2 workers, 90% reads: 498.88 ns time per operation/4 workers, 10% reads: 2175.27 ns time per operation/4 workers, 50% reads: 2230.55 ns time per operation/4 workers, 90% reads: 1475.89 ns time per operation/8 workers, 10% reads: 5826.76 ns time per operation/8 workers, 50% reads: 5116.11 ns time per operation/8 workers, 90% reads: 3587.42 ns time per operation/one domain, 10% reads: 40.20 ns time per operation/one domain, 50% reads: 39.84 ns time per operation/one domain, 90% reads: 28.50 ns Queue: messages over time/one domain: 33.13 M/s time per message/one domain: 30.18 ns Ref with Mutex: ops over time/cas int: 30.16 M/s ops over time/get: 36.64 M/s ops over time/incr: 32.25 M/s ops over time/push & pop: 26.08 M/s ops over time/swap: 28.77 M/s ops over time/xchg int: 30.03 M/s time per op/cas int: 33.16 ns time per op/get: 27.29 ns time per op/incr: 31.00 ns time per op/push & pop: 38.34 ns time per op/swap: 34.76 ns time per op/xchg int: 33.30 ns Ref with [@poll error]: ops over time/cas int: 168.52 M/s ops over time/get: 651.85 M/s ops over time/incr: 302.71 M/s ops over time/push & pop: 78.11 M/s ops over time/swap: 109.38 M/s ops over time/xchg int: 165.59 M/s time per op/cas int: 5.93 ns time per op/get: 1.53 ns time per op/incr: 3.30 ns time per op/push & pop: 12.80 ns time per op/swap: 9.14 ns time per op/xchg int: 6.04 ns Stack: messages over time/one domain: 40.77 M/s time per message/one domain: 24.53 ns Unix: blocking reads over time/1 worker: 1.22 M/s blocking reads over time/2 workers: 2.45 M/s blocking reads over time/4 workers: 4.48 M/s time per blocking read/1 worker: 818.68 ns time per blocking read/2 workers: 817.41 ns time per blocking read/4 workers: 893.76 ns 2025-06-12 19:22.30 ---> saved as "55e81dd501d72407db7af5d4ce9dbafe677bdd702dedcc728a531208fc52b161" Job succeeded 2025-06-12 19:22.30: Job succeeded