debian-12-4.14_arm32_opam-2.3

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-arm64:debian-12-4.14_arm32_opam-2.3)
Base: ocaml/opam:debian-12-ocaml-4.14@sha256:9df74c8c6f53ce83389297048432f019fb17fc96c28f27ca700eb3c2c9e01b3b
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:debian-12-ocaml-4.14@sha256:9df74c8c6f53ce83389297048432f019fb17fc96c28f27ca700eb3c2c9e01b3b
# debian-12-4.14_arm32_opam-2.3
USER 1000:1000
SHELL [ "/usr/bin/linux32", "/bin/sh", "-c" ]
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-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.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.1.12.0 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:debian-12-ocaml-4.14@sha256:9df74c8c6f53ce83389297048432f019fb17fc96c28f27ca700eb3c2c9e01b3b-debian-12-4.14_arm32_opam-2.3-5e4c8ffe3a82688c609d0a76996fa04b"
2025-06-12 14:21.29: Using OBuilder spec:
((from ocaml/opam:debian-12-ocaml-4.14@sha256:9df74c8c6f53ce83389297048432f019fb17fc96c28f27ca700eb3c2c9e01b3b)
(comment debian-12-4.14_arm32_opam-2.3)
(user (uid 1000) (gid 1000))
(shell /usr/bin/linux32 /bin/sh -c)
(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-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.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.1.12.0 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 17:26.40: Waiting for worker…
2025-06-12 17:45.49: Got resource from pool OCluster
Building on okypous.caelum.ci.dev
All commits already cached
HEAD is now at d2dcd9f Try to avoid false sharing


(from ocaml/opam:debian-12-ocaml-4.14@sha256:9df74c8c6f53ce83389297048432f019fb17fc96c28f27ca700eb3c2c9e01b3b)
Unable to find image 'ocaml/opam:debian-12-ocaml-4.14@sha256:9df74c8c6f53ce83389297048432f019fb17fc96c28f27ca700eb3c2c9e01b3b' locally
docker.io/ocaml/opam@sha256:9df74c8c6f53ce83389297048432f019fb17fc96c28f27ca700eb3c2c9e01b3b: Pulling from ocaml/opam
5a64641236c0: Pulling fs layer
5a64641236c0: Verifying Checksum
5a64641236c0: Download complete
5a64641236c0: Pull complete
Digest: sha256:9df74c8c6f53ce83389297048432f019fb17fc96c28f27ca700eb3c2c9e01b3b
Status: Downloaded newer image for ocaml/opam@sha256:9df74c8c6f53ce83389297048432f019fb17fc96c28f27ca700eb3c2c9e01b3b
WARNING: The requested image's platform (linux/arm/v7) does not match the detected host platform (linux/arm64/v8) and no specific platform was requested
2025-06-12 17:45.51 ---> using "fbe3507ddfb49174807fb3b5ec2c92e2ca5df35a1a8d51ef85d3c3a7b9384458" from cache


/: (comment debian-12-4.14_arm32_opam-2.3)


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


/: (shell /usr/bin/linux32 /bin/sh -c)


/: (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 17:45.51 ---> using "ae4dd88ea2ca0788dc5bb2f6931cb371f1b60ad5339a93b10dddb4bfef7b2759" 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 17:45.51 ---> using "b583ae389992b18bccc9a56bde4d5cdbbb09ed2ee10a121d14d0436740f10599" 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
2.3.0
2025-06-12 17:45.51 ---> using "6635db15231ab8d3249eeae60f6c031947eac456c82609d256b98a1fb62d09ac" from cache


/src: (workdir /src)


/src: (run (shell "sudo chown opam /src"))
2025-06-12 17:45.51 ---> using "293ada7600339663cf2d7244bc3f71ecc18e47e08e94c3d56db50b0fb310c6c1" 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
0d013e603b..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 17:45.51 ---> using "1b4834c10d567f97eb7575ea2a1603bcfc514047847a9aa2cbd4c4a726e39a20" from cache


/src: (copy (src multicore-bench.opam) (dst ./))
2025-06-12 17:45.54 ---> saved as "d810056de6ef12d8bd69ba7e922f7e188a6858e2903c82a6f5941673626f5e26"


/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 17:45.59 ---> saved as "393e4ac703aed2bca42302cc584131c5f93ffc38f2685155bfd1d99c9bf016b0"


/src: (run (network host)
(shell "echo '(lang dune 3.0)' > './dune-project'"))
2025-06-12 17:46.01 ---> saved as "f45d1e36c75c841b8b0ab9da1bfb6f8a9bce1ba5acc4213b7fcb74b270f43f9f"


/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.3.19.1 fmt.0.10.0 logs.0.8.0 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.1.12.0 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 "apt-get" "update"
- Get:1 http://deb.debian.org/debian bookworm InRelease [151 kB]
- Get:2 http://deb.debian.org/debian bookworm-updates InRelease [55.4 kB]
- Get:3 http://deb.debian.org/debian-security bookworm-security InRelease [48.0 kB]
- Get:4 http://deb.debian.org/debian bookworm/main armhf Packages [8508 kB]
- Get:5 http://deb.debian.org/debian-security bookworm-security/main armhf Packages [247 kB]
- Fetched 9009 kB in 2s (4573 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).
2025-06-12 17:46.17 ---> saved as "609d937fb53c7e4f01488022e2b60dd938aed23d9e6a6d3c91793cc62a2e181b"


/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               3.19.1
- 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 camlp-streams.5.0.1  (cached)
-> retrieved backoff.0.1.1  (cached)
-> retrieved astring.0.8.5  (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 ocamlfind.1.9.8
-> installed ocamlbuild.0.16.1
-> 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 csexp.1.5.2
-> installed domain_shims.0.1.0
-> installed camlp-streams.5.0.1
-> installed ocaml-version.4.0.1
-> installed result.1.5
-> installed backoff.0.1.1
-> installed thread-table.1.0.0
-> installed multicore-magic.2.3.1
-> installed yojson.3.0.0
-> installed cppo.1.8.0
-> installed domain-local-await.1.0.1
-> installed re.1.12.0
-> installed mdx.2.5.0
Done.
# To update the current shell environment, run: eval $(opam env)
2025-06-12 17:48.12 ---> saved as "c62f5be6e93b7ac1ccad943e84f762d3a8ea2dc05f2ed59e25a49f44a36abb64"


/src: (copy (src .) (dst /src))
2025-06-12 17:48.12 ---> saved as "28b6c77b2a8f1477795ec3218b3bb63adca294acefae45932fe645a1e5e0f130"


/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:
203.25 M/s
ops over time/get:
798.71 M/s
ops over time/incr:
423.73 M/s
ops over time/push & pop:
107.85 M/s
ops over time/swap:
98.00 M/s
ops over time/xchg int:
211.14 M/s
time per op/cas int:
4.92 ns
time per op/get:
1.25 ns
time per op/incr:
2.36 ns
time per op/push & pop:
9.27 ns
time per op/swap:
10.20 ns
time per op/xchg int:
4.74 ns
Atomic incr:
ops over time/CAS, 1 domains:
187.12 M/s
ops over time/CAS with backoff, 1 domains:
178.31 M/s
ops over time/Incr, 1 domains:
261.51 M/s
time per op/CAS, 1 domains:
5.34 ns
time per op/CAS with backoff, 1 domains:
5.61 ns
time per op/Incr, 1 domains:
3.82 ns
Bounded_q:
messages over time/one domain:
9.90 M/s
time per message/one domain:
100.96 ns
Hashtbl:
operations over time/1 worker, 10% reads:
10.51 M/s
operations over time/1 worker, 50% reads:
6.60 M/s
operations over time/1 worker, 90% reads:
10.37 M/s
operations over time/2 workers, 10% reads:
8.25 M/s
operations over time/2 workers, 50% reads:
10.23 M/s
operations over time/2 workers, 90% reads:
10.05 M/s
operations over time/4 workers, 10% reads:
5.40 M/s
operations over time/4 workers, 50% reads:
6.43 M/s
operations over time/4 workers, 90% reads:
5.97 M/s
operations over time/8 workers, 10% reads:
3.71 M/s
operations over time/8 workers, 50% reads:
4.09 M/s
operations over time/8 workers, 90% reads:
4.35 M/s
operations over time/one domain, 10% reads:
11.35 M/s
operations over time/one domain, 50% reads:
14.70 M/s
operations over time/one domain, 90% reads:
15.89 M/s
time per operation/1 worker, 10% reads:
95.16 ns
time per operation/1 worker, 50% reads:
151.49 ns
time per operation/1 worker, 90% reads:
96.46 ns
time per operation/2 workers, 10% reads:
242.53 ns
time per operation/2 workers, 50% reads:
195.55 ns
time per operation/2 workers, 90% reads:
199.15 ns
time per operation/4 workers, 10% reads:
741.28 ns
time per operation/4 workers, 50% reads:
621.77 ns
time per operation/4 workers, 90% reads:
670.13 ns
time per operation/8 workers, 10% reads:
2160.89 ns
time per operation/8 workers, 50% reads:
1954.10 ns
time per operation/8 workers, 90% reads:
1838.88 ns
time per operation/one domain, 10% reads:
88.14 ns
time per operation/one domain, 50% reads:
68.02 ns
time per operation/one domain, 90% reads:
62.92 ns
Queue:
messages over time/one domain:
34.15 M/s
time per message/one domain:
29.28 ns
Ref with Mutex:
ops over time/cas int:
32.54 M/s
ops over time/get:
36.38 M/s
ops over time/incr:
36.19 M/s
ops over time/push & pop:
31.41 M/s
ops over time/swap:
30.73 M/s
ops over time/xchg int:
32.40 M/s
time per op/cas int:
30.74 ns
time per op/get:
27.49 ns
time per op/incr:
27.63 ns
time per op/push & pop:
31.84 ns
time per op/swap:
32.54 ns
time per op/xchg int:
30.86 ns
Ref with [@poll error]:
ops over time/cas int:
202.59 M/s
ops over time/get:
799.73 M/s
ops over time/incr:
518.67 M/s
ops over time/push & pop:
108.08 M/s
ops over time/swap:
98.42 M/s
ops over time/xchg int:
209.38 M/s
time per op/cas int:
4.94 ns
time per op/get:
1.25 ns
time per op/incr:
1.93 ns
time per op/push & pop:
9.25 ns
time per op/swap:
10.16 ns
time per op/xchg int:
4.78 ns
Stack:
messages over time/one domain:
38.70 M/s
time per message/one domain:
25.84 ns
Unix:
blocking reads over time/1 worker:
0.65 M/s
time per blocking read/1 worker:
1544.21 ns
2025-06-12 17:48.26 ---> saved as "69adb2f7cc93714c2b3f2972004f45047a80a03d39577e71657a551d41b660a2"
Job succeeded
2025-06-12 17:48.27: Job succeeded