macos-homebrew-4.14_arm64_opam-2.4

2025-09-10 00:50.27: New job: test ocaml-multicore/multicore-bench https://github.com/ocaml-multicore/multicore-bench.git#refs/heads/main (efb15d8562dbdc1ba976ffc574de028e3c11c123) (macos-arm64:macos-homebrew-4.14_arm64_opam-2.4)
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_arm64_opam-2.4
USER 1000:1000
ENV CLICOLOR_FORCE="1"
ENV OPAMCOLOR="always"
RUN ln -f ~/local/bin/opam-2.4 ~/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 109398e2fd61803126becd398df0f1eabc9f3ca2 || git fetch origin master) && git reset -q --hard 109398e2fd61803126becd398df0f1eabc9f3ca2 && 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.1.3.0 cppo.1.8.0 csexp.1.5.2 domain-local-await.1.0.1 domain_shims.0.1.0 dune.3.20.2 fmt.0.11.0 logs.0.9.0 mdx.2.5.0 mtime.2.1.0 multicore-magic.2.3.1 ocaml.4.14.2 ocaml-base-compiler.4.14.2 ocaml-config.2 ocaml-options-vanilla.1 ocaml-version.4.0.1 ocamlbuild.0.16.1 ocamlfind.1.9.8 re.1.13.2 result.1.5 seq.base thread-table.1.0.0 topkg.1.1.0 yojson.3.0.0"
ENV CI="true"
ENV OCAMLCI="true"
RUN opam update --depexts && opam install --cli=2.4 --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


2025-09-10 00:50.27: Using cache hint "ocaml-multicore/multicore-bench-macos-homebrew-ocaml-4.14-macos-homebrew-4.14_arm64_opam-2.4-d201c81d7e37170adc2a394de74586d2"
2025-09-10 00:50.27: Using OBuilder spec:
((from macos-homebrew-ocaml-4.14)
(comment macos-homebrew-4.14_arm64_opam-2.4)
(user (uid 1000) (gid 1000))
(env CLICOLOR_FORCE 1)
(env OPAMCOLOR always)
(run (shell "ln -f ~/local/bin/opam-2.4 ~/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 109398e2fd61803126becd398df0f1eabc9f3ca2 || git fetch origin master) && git reset -q --hard 109398e2fd61803126becd398df0f1eabc9f3ca2 && 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.1.3.0 cppo.1.8.0 csexp.1.5.2 domain-local-await.1.0.1 domain_shims.0.1.0 dune.3.20.2 fmt.0.11.0 logs.0.9.0 mdx.2.5.0 mtime.2.1.0 multicore-magic.2.3.1 ocaml.4.14.2 ocaml-base-compiler.4.14.2 ocaml-config.2 ocaml-options-vanilla.1 ocaml-version.4.0.1 ocamlbuild.0.16.1 ocamlfind.1.9.8 re.1.13.2 result.1.5 seq.base thread-table.1.0.0 topkg.1.1.0 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=2.4 --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"))
)


2025-09-10 00:50.27: Waiting for resource in pool OCluster
2025-09-10 04:58.25: Waiting for worker…
2025-09-10 07:17.42: Got resource from pool OCluster
Building on m1-worker-02
All commits already cached
HEAD is now at efb15d8 Inline `Atomic` and `Ref` ops and unroll


(from macos-homebrew-ocaml-4.14)
2025-09-10 07:17.42 ---> using "0c60f117aee57abea8364cb033d47bb1d63ff0f68e5ee97378e032498e8442af" from cache


/: (comment macos-homebrew-4.14_arm64_opam-2.4)


/: (user (uid 1000) (gid 1000))


/: (env CLICOLOR_FORCE 1)


/: (env OPAMCOLOR always)


/: (run (shell "ln -f ~/local/bin/opam-2.4 ~/local/bin/opam"))
2025-09-10 07:17.42 ---> using "16fd332aba96a180769fbf49639a0f9a6aa6ed7d2edfa24c2b9bea4039176eb4" 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
2025-09-10 07:17.43 ---> using "441082522a992e4675bb61cf184ac4d487fcb27eccab875ab68ef480e42527a0" from cache


/: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))
Darwin 24.5.0
The OCaml toplevel, version 4.14.2
2.4.1
2025-09-10 07:17.43 ---> using "73a23ad864bce177bda3ef5ed15fdc258f712e067e25e839184501078d169a1f" 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 109398e2fd61803126becd398df0f1eabc9f3ca2 || git fetch origin master) && git reset -q --hard 109398e2fd61803126becd398df0f1eabc9f3ca2 && git log --no-decorate -n1 --oneline && opam update -u"))
From https://github.com/ocaml/opam-repository
* branch                  master     -> FETCH_HEAD
f6368c68f9..ea994caae6  master     -> origin/master
109398e2fd Merge pull request #28437 from maiste/release-dune-3.20.2


<><> 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.5.3.0
- ocaml-config.3
However, you may "opam upgrade" these packages explicitly at these versions (e.g. "opam upgrade ocaml.5.3.0"), which will ask permission to downgrade or uninstall the conflicting packages.
Nothing to do.
# To update the current shell environment, run: eval $(opam env)
2025-09-10 07:17.43 ---> using "cf6301655f7dcc2221945c15e0de7a493362e3cc87e5a218114cc79105d27770" from cache


/: (copy (src multicore-bench.opam) (dst ./src/./))
2025-09-10 07:17.44 ---> saved as "7edaa47f078ebf94c332e114aadfb45f57a55e2373cacea8ff928ccf878e6e70"


/: (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)
2025-09-10 07:17.52 ---> saved as "97313dbd966e8a01dd7c13d9c0ef0d7f167a6dfe42d720a773100bf0392d6b7c"


/: (run (network host)
(shell "echo '(lang dune 3.0)' > './src/./dune-project'"))
2025-09-10 07:17.53 ---> saved as "d65c557ca2365c3d556c14007092324fc4cef49da0fbb2e8e2c1cde028ea8888"


/: (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.1.3.0 cppo.1.8.0 csexp.1.5.2 domain-local-await.1.0.1 domain_shims.0.1.0 dune.3.20.2 fmt.0.11.0 logs.0.9.0 mdx.2.5.0 mtime.2.1.0 multicore-magic.2.3.1 ocaml.4.14.2 ocaml-base-compiler.4.14.2 ocaml-config.2 ocaml-options-vanilla.1 ocaml-version.4.0.1 ocamlbuild.0.16.1 ocamlfind.1.9.8 re.1.13.2 result.1.5 seq.base thread-table.1.0.0 topkg.1.1.0 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=2.4 --depext-only -y multicore-bench.dev $DEPS"))
+ /opt/homebrew/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).
2025-09-10 07:18.09 ---> saved as "5e99e81f6921d7a04d6c1a7a2afcb0ffdd47ed6134241700be3b17cbf160aaeb"


/: (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 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               3.20.2
- install fmt                0.11.0
- install logs               0.9.0
- 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                 1.13.2
- install result             1.5
- install seq                base
- install thread-table       1.0.0
- install topkg              1.1.0
- 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 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 cppo.1.8.0  (cached)
-> retrieved fmt.0.11.0  (cached)
-> retrieved logs.0.9.0  (cached)
-> retrieved mtime.2.1.0  (cached)
-> retrieved multicore-magic.2.3.1  (cached)
-> retrieved ocaml-version.4.0.1  (cached)
-> retrieved mdx.2.5.0  (cached)
-> retrieved ocamlbuild.0.16.1  (cached)
-> retrieved re.1.13.2  (cached)
-> retrieved ocamlfind.1.9.8  (cached)
-> retrieved seq.base  (cached)
-> installed seq.base
-> retrieved thread-table.1.0.0  (cached)
-> retrieved result.1.5  (cached)
-> retrieved topkg.1.1.0  (cached)
-> retrieved yojson.3.0.0  (cached)
-> retrieved dune.3.20.2  (cached)
-> installed cmdliner.1.3.0
-> installed ocamlbuild.0.16.1
-> installed ocamlfind.1.9.8
-> installed topkg.1.1.0
-> installed mtime.2.1.0
-> installed astring.0.8.5
-> installed fmt.0.11.0
-> installed logs.0.9.0
-> installed dune.3.20.2
-> installed domain_shims.0.1.0
-> installed csexp.1.5.2
-> installed camlp-streams.5.0.1
-> installed backoff.0.1.1
-> installed multicore-magic.2.3.1
-> installed result.1.5
-> installed thread-table.1.0.0
-> installed ocaml-version.4.0.1
-> installed cppo.1.8.0
-> installed domain-local-await.1.0.1
-> installed re.1.13.2
-> installed yojson.3.0.0
-> installed mdx.2.5.0
Done.
# To update the current shell environment, run: eval $(opam env)
2025-09-10 07:18.49 ---> saved as "eb240861087751520fd4d63fe027a1e79804bcf577fdcd0b909198c2d2cd1b77"


/: (copy (src .) (dst ./src))
2025-09-10 07:18.50 ---> saved as "46417bb7d4f61df707f2a664e18123cea67f35261f4ed4ad733eef9991de5bf3"


/: (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:
365.52 M/s
ops over time/get:
4214.96 M/s
ops over time/incr:
397.22 M/s
ops over time/push & pop:
170.39 M/s
ops over time/swap:
215.89 M/s
ops over time/xchg int:
365.74 M/s
time per op/cas int:
2.74 ns
time per op/get:
0.24 ns
time per op/incr:
2.52 ns
time per op/push & pop:
5.87 ns
time per op/swap:
4.63 ns
time per op/xchg int:
2.73 ns
Atomic incr:
ops over time/CAS, 1 domains:
320.51 M/s
ops over time/CAS with backoff, 1 domains:
320.26 M/s
ops over time/Incr, 1 domains:
393.96 M/s
time per op/CAS, 1 domains:
3.12 ns
time per op/CAS with backoff, 1 domains:
3.12 ns
time per op/Incr, 1 domains:
2.54 ns
Bounded_q:
messages over time/one domain:
19.36 M/s
time per message/one domain:
51.66 ns
Hashtbl:
operations over time/1 worker, 10% reads:
20.86 M/s
operations over time/1 worker, 50% reads:
20.25 M/s
operations over time/1 worker, 90% reads:
27.89 M/s
operations over time/2 workers, 10% reads:
20.77 M/s
operations over time/2 workers, 50% reads:
20.31 M/s
operations over time/2 workers, 90% reads:
27.87 M/s
operations over time/4 workers, 10% reads:
20.65 M/s
operations over time/4 workers, 50% reads:
20.19 M/s
operations over time/4 workers, 90% reads:
27.74 M/s
operations over time/8 workers, 10% reads:
20.48 M/s
operations over time/8 workers, 50% reads:
20.10 M/s
operations over time/8 workers, 90% reads:
27.49 M/s
operations over time/one domain, 10% reads:
30.06 M/s
operations over time/one domain, 50% reads:
29.56 M/s
operations over time/one domain, 90% reads:
40.82 M/s
time per operation/1 worker, 10% reads:
47.94 ns
time per operation/1 worker, 50% reads:
49.39 ns
time per operation/1 worker, 90% reads:
35.86 ns
time per operation/2 workers, 10% reads:
96.29 ns
time per operation/2 workers, 50% reads:
98.48 ns
time per operation/2 workers, 90% reads:
71.75 ns
time per operation/4 workers, 10% reads:
193.74 ns
time per operation/4 workers, 50% reads:
198.12 ns
time per operation/4 workers, 90% reads:
144.20 ns
time per operation/8 workers, 10% reads:
390.64 ns
time per operation/8 workers, 50% reads:
398.01 ns
time per operation/8 workers, 90% reads:
291.06 ns
time per operation/one domain, 10% reads:
33.26 ns
time per operation/one domain, 50% reads:
33.83 ns
time per operation/one domain, 90% reads:
24.50 ns
Queue:
messages over time/one domain:
54.45 M/s
time per message/one domain:
18.37 ns
Ref with Mutex:
ops over time/cas int:
57.72 M/s
ops over time/get:
65.63 M/s
ops over time/incr:
65.57 M/s
ops over time/push & pop:
56.82 M/s
ops over time/swap:
59.15 M/s
ops over time/xchg int:
58.01 M/s
time per op/cas int:
17.32 ns
time per op/get:
15.24 ns
time per op/incr:
15.25 ns
time per op/push & pop:
17.60 ns
time per op/swap:
16.91 ns
time per op/xchg int:
17.24 ns
Ref with [@poll error]:
ops over time/cas int:
365.74 M/s
ops over time/get:
4213.51 M/s
ops over time/incr:
460.83 M/s
ops over time/push & pop:
170.27 M/s
ops over time/swap:
216.26 M/s
ops over time/xchg int:
365.74 M/s
time per op/cas int:
2.73 ns
time per op/get:
0.24 ns
time per op/incr:
2.17 ns
time per op/push & pop:
5.87 ns
time per op/swap:
4.62 ns
time per op/xchg int:
2.73 ns
Stack:
messages over time/one domain:
59.91 M/s
time per message/one domain:
16.69 ns
Unix:
blocking reads over time/1 worker:
1.68 M/s
time per blocking read/1 worker:
594.55 ns
2025-09-10 07:18.53 ---> saved as "c789f234995fea003b879f9f55a9b5a93742952ab0b247d7b6a48604883633da"
Job succeeded
2025-09-10 07:18.58: Job succeeded