fedora-43-4.14_opam-2.5

2026-02-15 17:59.35: New job: test ocaml-multicore/multicore-bench https://github.com/ocaml-multicore/multicore-bench.git#refs/heads/main (efb15d8562dbdc1ba976ffc574de028e3c11c123) (linux-x86_64:fedora-43-4.14_opam-2.5)
Base: ocaml/opam:fedora-43-ocaml-4.14@sha256:77033f92479865d6d487d3b3c783917ac3fe44df9c3ca8255799717e3eae02e4
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:fedora-43-ocaml-4.14@sha256:77033f92479865d6d487d3b3c783917ac3fe44df9c3ca8255799717e3eae02e4
# fedora-43-4.14_opam-2.5
USER 1000:1000
ENV CLICOLOR_FORCE="1"
ENV OPAMCOLOR="always"
WORKDIR /src
RUN sudo dnf install -y findutils
RUN sudo ln -f /usr/bin/opam-2.5 /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 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 ./
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.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 opam exec -- dune build @install @check @runtest && rm -rf _build


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


2026-02-15 17:59.35: Using cache hint "ocaml-multicore/multicore-bench-ocaml/opam:fedora-43-ocaml-4.14@sha256:77033f92479865d6d487d3b3c783917ac3fe44df9c3ca8255799717e3eae02e4-fedora-43-4.14_opam-2.5-3276ee940043c1e69634f204ac603fad"
2026-02-15 17:59.35: Using OBuilder spec:
((from ocaml/opam:fedora-43-ocaml-4.14@sha256:77033f92479865d6d487d3b3c783917ac3fe44df9c3ca8255799717e3eae02e4)
(comment fedora-43-4.14_opam-2.5)
(user (uid 1000) (gid 1000))
(env CLICOLOR_FORCE 1)
(env OPAMCOLOR always)
(workdir /src)
(run (network host)
(shell "sudo dnf install -y findutils"))
(run (shell "sudo ln -f /usr/bin/opam-2.5 /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 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 ./))
(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.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 /home/opam/.opam/download-cache)))
(network host)
(shell "opam update --depexts && opam install --cli=2.5 --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"))
)


2026-02-15 17:59.35: Waiting for resource in pool OCluster
2026-02-15 19:07.45: Waiting for worker…
2026-02-15 19:13.00: Got resource from pool OCluster
Building on asteria.caelum.ci.dev
All commits already cached
HEAD is now at efb15d8 Inline `Atomic` and `Ref` ops and unroll


(from ocaml/opam:fedora-43-ocaml-4.14@sha256:77033f92479865d6d487d3b3c783917ac3fe44df9c3ca8255799717e3eae02e4)
Unable to find image 'ocaml/opam:fedora-43-ocaml-4.14@sha256:77033f92479865d6d487d3b3c783917ac3fe44df9c3ca8255799717e3eae02e4' locally
docker.io/ocaml/opam@sha256:77033f92479865d6d487d3b3c783917ac3fe44df9c3ca8255799717e3eae02e4: Pulling from ocaml/opam
5bc90b3315da: Already exists
132ed1c875b9: Already exists
709f19a93d7b: Already exists
600672ca084e: Already exists
e14c24140cbe: Already exists
2db09da454e1: Already exists
0e05a03dbf5c: Already exists
d9bf0b27ee73: Already exists
d22999d561d9: Already exists
9748e0447729: Already exists
b221b944dee6: Already exists
9103b02722d1: Already exists
4ad003f04196: Already exists
530b789336ee: Already exists
7dc6ed995942: Already exists
26e0665eb0ef: Already exists
ec3e95305314: Already exists
e3efd041cf4c: Already exists
93818fe36d44: Already exists
ddeea98533ac: Already exists
d782acfda9e2: Already exists
4f4fb700ef54: Already exists
4ac33b5f01d6: Already exists
d4dbe3c6c8b2: Already exists
81507c45bdf3: Already exists
2a6e58484e29: Already exists
dc9846762449: Already exists
c73cd3a4d77c: Already exists
4655acdcba9f: Already exists
ea076df8754b: Already exists
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2ea825907a64: Already exists
61247173b8a6: Already exists
09632a095133: Already exists
ac2374af5ce6: Already exists
c60028bae782: Already exists
0f1285a8c656: Already exists
b23d2088dbe2: Already exists
0b0be00d160c: Already exists
dfd2d2f20c5c: Already exists
2c0407baf495: Pulling fs layer
2c0407baf495: Waiting
28d1b3a533a2: Pulling fs layer
7193f8db1abd: Pulling fs layer
28d1b3a533a2: Waiting
ba17274c7abc: Pulling fs layer
7193f8db1abd: Waiting
ba17274c7abc: Waiting
28d1b3a533a2: Download complete
7193f8db1abd: Verifying Checksum
7193f8db1abd: Download complete
ba17274c7abc: Verifying Checksum
ba17274c7abc: Download complete
2c0407baf495: Verifying Checksum
2c0407baf495: Download complete
2c0407baf495: Pull complete
28d1b3a533a2: Pull complete
7193f8db1abd: Pull complete
ba17274c7abc: Pull complete
Digest: sha256:77033f92479865d6d487d3b3c783917ac3fe44df9c3ca8255799717e3eae02e4
Status: Downloaded newer image for ocaml/opam@sha256:77033f92479865d6d487d3b3c783917ac3fe44df9c3ca8255799717e3eae02e4
2026-02-15 19:13.00 ---> using "1f54aa51492a69d3d8ee5c55c8bbd619dd53887b0a823c40d168b74a6ba8f9f5" from cache


/: (comment fedora-43-4.14_opam-2.5)


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


/: (env CLICOLOR_FORCE 1)


/: (env OPAMCOLOR always)


/: (workdir /src)


/src: (run (network host)
(shell "sudo dnf install -y findutils"))
Updating and loading repositories:
Fedora 43 - x86_64 - Updates           100% |  81.4 KiB/s |  17.2 KiB |  00m00s
Repositories loaded.
Package "findutils-1:4.10.0-6.fc43.x86_64" is already installed.


Nothing to do.
2026-02-15 19:13.00 ---> using "f29b1946ad5ef4344453dde0a6e91f6b1b5de8cde20c032c769e3ab35dbb33b7" from cache


/src: (run (shell "sudo ln -f /usr/bin/opam-2.5 /usr/bin/opam"))
2026-02-15 19:13.00 ---> using "a7f98fddf79bde08f47f7dac631ec363de8e054f0ffb8ecebd5e6bf2143f3d63" 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
[NOTE] The 'jobs' option was reset, its value was 71 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=71 --global
Format upgrade done.


<><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><>
[default] Initialised
2026-02-15 19:13.00 ---> using "790a777ec09532aa50147c00cc1d86536d648124cc3cf542fa11931f117165a7" from cache


/src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))
Linux 6.8.0-87-generic
The OCaml toplevel, version 4.14.2
2.5.0
2026-02-15 19:13.00 ---> using "9eb5d191c15af29a8332ec4cfec738918c61bef1c393b4e89c140d44af4c269c" from cache


/src: (workdir /src)


/src: (run (shell "sudo chown opam /src"))
2026-02-15 19:13.00 ---> using "432e1d13e123d26431cc76adbec5d6a2163af5c39210d86901090fb44a45b8b9" from cache


/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(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"))
302e116c40 Merge pull request #29374 from shonfeder/release-dune-3.21.1


<><> 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 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)
2026-02-15 19:13.00 ---> using "ce79424ffc318b840c7fbb6a9a87c737a6db86ab2c36f973dcb241ae05fbaf16" from cache


/src: (copy (src multicore-bench.opam) (dst ./))
2026-02-15 19:13.01 ---> saved as "5e6743fe0745ed96cdd956119c5a879167e2c36a9b975c83048f7befa917cd8f"


/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)
2026-02-15 19:13.01 ---> saved as "7efd58ed417b3a57046bd2ae9f59492653ef047bafb22792d2b40c9b1f27c03a"


/src: (run (network host)
(shell "echo '(lang dune 3.0)' > './dune-project'"))
2026-02-15 19:13.02 ---> saved as "9ff3ea13eb30ab3ae77ec405bb63987d3739ea06a2b694b187ee2c9f294fca52"


/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.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")


/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=2.5 --depext-only -y multicore-bench.dev $DEPS"))
+ /usr/sbin/sudo "yum" "makecache"
- Updating and loading repositories:
- Repositories loaded.
- Metadata cache created.


<><> 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).
# To update the current shell environment, run: eval $(opam env)
2026-02-15 19:13.09 ---> saved as "eaa0d8d096f542f6f6d34e842da71801b5eb9c952df47fa0524ff3be786f9b73"


/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 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 astring.0.8.5  (cached)
-> retrieved backoff.0.1.1  (cached)
-> retrieved camlp-streams.5.0.1  (cached)
-> retrieved cppo.1.8.0  (cached)
-> retrieved cmdliner.2.1.0  (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.0.10.0  (cached)
-> retrieved mtime.2.1.0  (cached)
-> retrieved mdx.2.5.1  (cached)
-> retrieved multicore-magic.2.3.2  (cached)
-> retrieved ocaml-version.4.0.3  (cached)
-> retrieved ocamlbuild.0.16.1  (cached)
-> retrieved ocamlfind.1.9.8  (cached)
-> retrieved re.1.14.0  (cached)
-> retrieved result.1.5  (cached)
-> retrieved thread-table.1.0.0  (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 camlp-streams.5.0.1
-> installed csexp.1.5.2
-> installed result.1.5
-> installed thread-table.1.0.0
-> installed backoff.0.1.1
-> 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 re.1.14.0
-> installed yojson.3.0.0
-> installed mdx.2.5.1
Done.
# To update the current shell environment, run: eval $(opam env)
2026-02-15 19:13.40 ---> saved as "a6780583d3695cf9924392547b2ea7e40222714eec6ca0b81d7d3f6b00f7abe9"


/src: (copy (src .) (dst /src))
2026-02-15 19:13.40 ---> saved as "eaa193439c007ab5e5830af1ce7c1a31c87da7ec61219cd837787ce3e296e50f"


/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:
209.20 M/s
ops over time/get:
2904.55 M/s
ops over time/incr:
355.89 M/s
ops over time/push & pop:
97.09 M/s
ops over time/swap:
117.69 M/s
ops over time/xchg int:
255.97 M/s
time per op/cas int:
4.78 ns
time per op/get:
0.34 ns
time per op/incr:
2.81 ns
time per op/push & pop:
10.30 ns
time per op/swap:
8.50 ns
time per op/xchg int:
3.91 ns
Atomic incr:
ops over time/CAS, 1 domains:
223.70 M/s
ops over time/CAS with backoff, 1 domains:
223.63 M/s
ops over time/Incr, 1 domains:
358.13 M/s
time per op/CAS, 1 domains:
4.47 ns
time per op/CAS with backoff, 1 domains:
4.47 ns
time per op/Incr, 1 domains:
2.79 ns
Bounded_q:
messages over time/one domain:
14.86 M/s
time per message/one domain:
67.29 ns
Hashtbl:
operations over time/1 worker, 10% reads:
16.11 M/s
operations over time/1 worker, 50% reads:
8.88 M/s
operations over time/1 worker, 90% reads:
8.52 M/s
operations over time/2 workers, 10% reads:
15.69 M/s
operations over time/2 workers, 50% reads:
14.46 M/s
operations over time/2 workers, 90% reads:
8.57 M/s
operations over time/4 workers, 10% reads:
15.05 M/s
operations over time/4 workers, 50% reads:
8.74 M/s
operations over time/4 workers, 90% reads:
8.36 M/s
operations over time/8 workers, 10% reads:
12.95 M/s
operations over time/8 workers, 50% reads:
6.65 M/s
operations over time/8 workers, 90% reads:
8.09 M/s
operations over time/one domain, 10% reads:
14.36 M/s
operations over time/one domain, 50% reads:
15.90 M/s
operations over time/one domain, 90% reads:
30.24 M/s
time per operation/1 worker, 10% reads:
62.09 ns
time per operation/1 worker, 50% reads:
112.65 ns
time per operation/1 worker, 90% reads:
117.34 ns
time per operation/2 workers, 10% reads:
127.47 ns
time per operation/2 workers, 50% reads:
138.27 ns
time per operation/2 workers, 90% reads:
233.44 ns
time per operation/4 workers, 10% reads:
265.79 ns
time per operation/4 workers, 50% reads:
457.47 ns
time per operation/4 workers, 90% reads:
478.44 ns
time per operation/8 workers, 10% reads:
617.88 ns
time per operation/8 workers, 50% reads:
1202.19 ns
time per operation/8 workers, 90% reads:
989.33 ns
time per operation/one domain, 10% reads:
69.64 ns
time per operation/one domain, 50% reads:
62.90 ns
time per operation/one domain, 90% reads:
33.07 ns
Queue:
messages over time/one domain:
42.09 M/s
time per message/one domain:
23.76 ns
Ref with Mutex:
ops over time/cas int:
53.04 M/s
ops over time/get:
63.59 M/s
ops over time/incr:
62.72 M/s
ops over time/push & pop:
52.53 M/s
ops over time/swap:
50.33 M/s
ops over time/xchg int:
49.41 M/s
time per op/cas int:
18.85 ns
time per op/get:
15.73 ns
time per op/incr:
15.94 ns
time per op/push & pop:
19.04 ns
time per op/swap:
19.87 ns
time per op/xchg int:
20.24 ns
Ref with [@poll error]:
ops over time/cas int:
217.82 M/s
ops over time/get:
2882.24 M/s
ops over time/incr:
445.47 M/s
ops over time/push & pop:
104.07 M/s
ops over time/swap:
126.02 M/s
ops over time/xchg int:
256.74 M/s
time per op/cas int:
4.59 ns
time per op/get:
0.35 ns
time per op/incr:
2.24 ns
time per op/push & pop:
9.61 ns
time per op/swap:
7.94 ns
time per op/xchg int:
3.90 ns
Stack:
messages over time/one domain:
48.47 M/s
time per message/one domain:
20.63 ns
Unix:
blocking reads over time/1 worker:
0.58 M/s
time per blocking read/1 worker:
1714.35 ns
2026-02-15 19:13.44 ---> saved as "4cf3864db5751f338d03100c3a234e8a9c7cb72665eb6086bd8441e28c2b3987"
Job succeeded
2026-02-15 19:13.44: Job succeeded