debian-13-4.14_arm64_opam-2.4

2025-09-15 18:36.56: New job: test ocaml-multicore/multicore-bench https://github.com/ocaml-multicore/multicore-bench.git#refs/heads/main (efb15d8562dbdc1ba976ffc574de028e3c11c123) (linux-arm64:debian-13-4.14_arm64_opam-2.4)
Base: ocaml/opam:debian-13-ocaml-4.14@sha256:15e81da9616c8fdbf5c757696471c062ff8d7a4a91033208620b89ca50c35b79
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 ocaml/opam:debian-13-ocaml-4.14@sha256:15e81da9616c8fdbf5c757696471c062ff8d7a4a91033208620b89ca50c35b79
# debian-13-4.14_arm64_opam-2.4
USER 1000:1000
ENV CLICOLOR_FORCE="1"
ENV OPAMCOLOR="always"
WORKDIR /src
RUN sudo ln -f /usr/bin/opam-2.4 /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 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 ./
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-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 opam exec -- dune build @install @check @runtest && rm -rf _build


END-OF-DOCKERFILE
docker build .
END-REPRO-BLOCK


2025-09-15 18:36.56: Using cache hint "ocaml-multicore/multicore-bench-ocaml/opam:debian-13-ocaml-4.14@sha256:15e81da9616c8fdbf5c757696471c062ff8d7a4a91033208620b89ca50c35b79-debian-13-4.14_arm64_opam-2.4-d201c81d7e37170adc2a394de74586d2"
2025-09-15 18:36.56: Using OBuilder spec:
((from ocaml/opam:debian-13-ocaml-4.14@sha256:15e81da9616c8fdbf5c757696471c062ff8d7a4a91033208620b89ca50c35b79)
(comment debian-13-4.14_arm64_opam-2.4)
(user (uid 1000) (gid 1000))
(env CLICOLOR_FORCE 1)
(env OPAMCOLOR always)
(workdir /src)
(run (shell "sudo ln -f /usr/bin/opam-2.4 /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 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 ./))
(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-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 /home/opam/.opam/download-cache)))
(network host)
(shell "opam update --depexts && opam install --cli=2.4 --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"))
)


2025-09-15 18:36.56: Waiting for resource in pool OCluster
2025-09-15 18:55.57: Waiting for worker…
2025-09-15 19:14.33: Got resource from pool OCluster
Building on okypous.caelum.ci.dev
All commits already cached
HEAD is now at efb15d8 Inline `Atomic` and `Ref` ops and unroll


(from ocaml/opam:debian-13-ocaml-4.14@sha256:15e81da9616c8fdbf5c757696471c062ff8d7a4a91033208620b89ca50c35b79)
Unable to find image 'ocaml/opam:debian-13-ocaml-4.14@sha256:15e81da9616c8fdbf5c757696471c062ff8d7a4a91033208620b89ca50c35b79' locally
docker.io/ocaml/opam@sha256:15e81da9616c8fdbf5c757696471c062ff8d7a4a91033208620b89ca50c35b79: Pulling from ocaml/opam
1cc1037c35e1: Pulling fs layer
1cc1037c35e1: Verifying Checksum
1cc1037c35e1: Download complete
1cc1037c35e1: Pull complete
Digest: sha256:15e81da9616c8fdbf5c757696471c062ff8d7a4a91033208620b89ca50c35b79
Status: Downloaded newer image for ocaml/opam@sha256:15e81da9616c8fdbf5c757696471c062ff8d7a4a91033208620b89ca50c35b79
2025-09-15 19:14.33 ---> using "f0dd87facdf2204b87e3bb1b5f3d72113c01ee3a4c2061c8ddf612f163b6f38e" from cache


/: (comment debian-13-4.14_arm64_opam-2.4)


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


/: (env CLICOLOR_FORCE 1)


/: (env OPAMCOLOR always)


/: (workdir /src)


/src: (run (shell "sudo ln -f /usr/bin/opam-2.4 /usr/bin/opam"))
2025-09-15 19:14.33 ---> using "8505052b5524b5c815c9e167774688d420c58409cf696df5372c6c21904f7cab" 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 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
2025-09-15 19:14.33 ---> using "c34a0e52e02fb3121c7a74fb77d548cde1096b5bfd6e5a66cb08b7d546d2734a" from cache


/src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))
Linux 5.15.0-138-generic
The OCaml toplevel, version 4.14.2
2.4.1
2025-09-15 19:14.33 ---> using "4b328e7a387433769935b71aed7871466e9f663a35a29fc8b576b38edc6989c2" from cache


/src: (workdir /src)


/src: (run (shell "sudo chown opam /src"))
2025-09-15 19:14.33 ---> using "eb552b1068fd10d42a0cdcef1e84d0ded0c9f6b886cfacf8f10b1e7adda74b83" from cache


/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(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"))
109398e2fd Merge pull request #28437 from maiste/release-dune-3.20.2


<><> 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 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)
2025-09-15 19:14.33 ---> using "cba1504265d73a9ec904739b54399f8dffbc4abdc4085acf5cf8d752a7818502" from cache


/src: (copy (src multicore-bench.opam) (dst ./))
2025-09-15 19:14.34 ---> saved as "b7a283cdf4922a156528a153be11eaca511d4d91e6d78cb076fc3c55edbfd8e7"


/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)
2025-09-15 19:14.37 ---> saved as "00801a9647458a3b01db3b5ed4188f7626037f18d88a1d4c5447070cb8895883"


/src: (run (network host)
(shell "echo '(lang dune 3.0)' > './dune-project'"))
2025-09-15 19:14.38 ---> saved as "4fc11861b2d35a5556dde89448641b6a0a6557484f00152ecb2bf701335f775e"


/src: (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")


/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=2.4 --depext-only -y multicore-bench.dev $DEPS"))
+ /usr/bin/sudo "apt-get" "update"
- Hit:1 http://deb.debian.org/debian trixie InRelease
- Get:2 http://deb.debian.org/debian trixie-updates InRelease [47.3 kB]
- Get:3 http://deb.debian.org/debian-security trixie-security InRelease [43.4 kB]
- Get:4 http://deb.debian.org/debian-security trixie-security/main arm64 Packages [40.7 kB]
- Fetched 131 kB in 0s (463 kB/s)
- Reading package lists...
- 


<><> 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 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).
2025-09-15 19:14.48 ---> saved as "0364a9ac3befc86ca3966652be030fba000071f67b48af077b15d4734aaf6f7c"


/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 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 astring.0.8.5  (cached)
-> retrieved backoff.0.1.1  (cached)
-> retrieved camlp-streams.5.0.1  (cached)
-> retrieved cmdliner.1.3.0  (cached)
-> retrieved cppo.1.8.0  (cached)
-> retrieved csexp.1.5.2  (cached)
-> retrieved domain-local-await.1.0.1  (cached)
-> retrieved domain_shims.0.1.0  (cached)
-> retrieved fmt.0.11.0  (cached)
-> retrieved logs.0.9.0  (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.1.13.2  (cached)
-> retrieved seq.base  (cached)
-> installed seq.base
-> retrieved result.1.5  (cached)
-> retrieved thread-table.1.0.0  (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 fmt.0.11.0
-> installed astring.0.8.5
-> 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 ocaml-version.4.0.1
-> installed result.1.5
-> installed thread-table.1.0.0
-> installed multicore-magic.2.3.1
-> installed domain-local-await.1.0.1
-> installed cppo.1.8.0
-> 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)
2025-09-15 19:15.34 ---> saved as "96694345fe683eab9d49851df18575b42467599a24a85d16c149b5c2427c01e5"


/src: (copy (src .) (dst /src))
2025-09-15 19:15.34 ---> saved as "3d51e2ae9b32811ba332ed3c67b3b8cd177afdbbef081b5f9f95cadee9dda097"


/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:
263.71 M/s
ops over time/get:
2584.23 M/s
ops over time/incr:
519.75 M/s
ops over time/push & pop:
99.20 M/s
ops over time/swap:
109.21 M/s
ops over time/xchg int:
254.01 M/s
time per op/cas int:
3.79 ns
time per op/get:
0.39 ns
time per op/incr:
1.92 ns
time per op/push & pop:
10.08 ns
time per op/swap:
9.16 ns
time per op/xchg int:
3.94 ns
Atomic incr:
ops over time/CAS, 1 domains:
214.00 M/s
ops over time/CAS with backoff, 1 domains:
190.97 M/s
ops over time/Incr, 1 domains:
236.47 M/s
time per op/CAS, 1 domains:
4.67 ns
time per op/CAS with backoff, 1 domains:
5.24 ns
time per op/Incr, 1 domains:
4.23 ns
Bounded_q:
messages over time/one domain:
12.71 M/s
time per message/one domain:
78.70 ns
Hashtbl:
operations over time/1 worker, 10% reads:
15.47 M/s
operations over time/1 worker, 50% reads:
15.77 M/s
operations over time/1 worker, 90% reads:
17.47 M/s
operations over time/2 workers, 10% reads:
14.86 M/s
operations over time/2 workers, 50% reads:
15.05 M/s
operations over time/2 workers, 90% reads:
9.60 M/s
operations over time/4 workers, 10% reads:
9.03 M/s
operations over time/4 workers, 50% reads:
9.63 M/s
operations over time/4 workers, 90% reads:
10.83 M/s
operations over time/8 workers, 10% reads:
5.99 M/s
operations over time/8 workers, 50% reads:
7.38 M/s
operations over time/8 workers, 90% reads:
6.17 M/s
operations over time/one domain, 10% reads:
18.09 M/s
operations over time/one domain, 50% reads:
24.70 M/s
operations over time/one domain, 90% reads:
32.79 M/s
time per operation/1 worker, 10% reads:
64.66 ns
time per operation/1 worker, 50% reads:
63.42 ns
time per operation/1 worker, 90% reads:
57.24 ns
time per operation/2 workers, 10% reads:
134.61 ns
time per operation/2 workers, 50% reads:
132.85 ns
time per operation/2 workers, 90% reads:
208.32 ns
time per operation/4 workers, 10% reads:
442.92 ns
time per operation/4 workers, 50% reads:
415.30 ns
time per operation/4 workers, 90% reads:
369.40 ns
time per operation/8 workers, 10% reads:
1335.68 ns
time per operation/8 workers, 50% reads:
1083.45 ns
time per operation/8 workers, 90% reads:
1296.29 ns
time per operation/one domain, 10% reads:
55.27 ns
time per operation/one domain, 50% reads:
40.49 ns
time per operation/one domain, 90% reads:
30.50 ns
Queue:
messages over time/one domain:
39.01 M/s
time per message/one domain:
25.63 ns
Ref with Mutex:
ops over time/cas int:
34.94 M/s
ops over time/get:
41.60 M/s
ops over time/incr:
41.69 M/s
ops over time/push & pop:
33.08 M/s
ops over time/swap:
36.26 M/s
ops over time/xchg int:
34.83 M/s
time per op/cas int:
28.62 ns
time per op/get:
24.04 ns
time per op/incr:
23.99 ns
time per op/push & pop:
30.23 ns
time per op/swap:
27.58 ns
time per op/xchg int:
28.71 ns
Ref with [@poll error]:
ops over time/cas int:
254.43 M/s
ops over time/get:
2593.33 M/s
ops over time/incr:
545.61 M/s
ops over time/push & pop:
94.68 M/s
ops over time/swap:
107.13 M/s
ops over time/xchg int:
250.37 M/s
time per op/cas int:
3.93 ns
time per op/get:
0.39 ns
time per op/incr:
1.83 ns
time per op/push & pop:
10.56 ns
time per op/swap:
9.33 ns
time per op/xchg int:
3.99 ns
Stack:
messages over time/one domain:
44.34 M/s
time per message/one domain:
22.55 ns
Unix:
blocking reads over time/1 worker:
0.79 M/s
time per blocking read/1 worker:
1262.08 ns
2025-09-15 19:15.40 ---> saved as "95d5460e65939a6af080f280a7a8b69ed1357c98b842f1bb7db9dad48df49e7c"
Job succeeded
2025-09-15 19:15.40: Job succeeded