opensuse-15.6-5.4_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:opensuse-15.6-5.4_opam-2.5)
Base: ocaml/opam:opensuse-15.6-ocaml-5.4@sha256:effc88b5c29636e2a2c6cb1098771062d091bda2846d151c20cf377b7e7f4041
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:opensuse-15.6-ocaml-5.4@sha256:effc88b5c29636e2a2c6cb1098771062d091bda2846d151c20cf377b7e7f4041
# opensuse-15.6-5.4_opam-2.5
USER 1000:1000
ENV CLICOLOR_FORCE="1"
ENV OPAMCOLOR="always"
WORKDIR /src
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-domains.base base-effects.base base-nnp.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.5.4.0 ocaml-base-compiler.5.4.0 ocaml-compiler.5.4.0 ocaml-config.3 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:opensuse-15.6-ocaml-5.4@sha256:effc88b5c29636e2a2c6cb1098771062d091bda2846d151c20cf377b7e7f4041-opensuse-15.6-5.4_opam-2.5-ca9771ecc62fd6bbba007243926da734"
2026-02-15 17:59.35: Using OBuilder spec:
((from ocaml/opam:opensuse-15.6-ocaml-5.4@sha256:effc88b5c29636e2a2c6cb1098771062d091bda2846d151c20cf377b7e7f4041)
(comment opensuse-15.6-5.4_opam-2.5)
(user (uid 1000) (gid 1000))
(env CLICOLOR_FORCE 1)
(env OPAMCOLOR always)
(workdir /src)
(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-domains.base base-effects.base base-nnp.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.5.4.0 ocaml-base-compiler.5.4.0 ocaml-compiler.5.4.0 ocaml-config.3 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 19:07.44: Waiting for worker…
2026-02-15 19:12.59: 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:opensuse-15.6-ocaml-5.4@sha256:effc88b5c29636e2a2c6cb1098771062d091bda2846d151c20cf377b7e7f4041)
2026-02-15 19:12.59 ---> using "ef7fcc773164a50ac7c6190f2fe405e5d17bf12eddb2fc6cbe71b9e48747f47a" from cache


/: (comment opensuse-15.6-5.4_opam-2.5)


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


/: (env CLICOLOR_FORCE 1)


/: (env OPAMCOLOR always)


/: (workdir /src)


/src: (run (shell "sudo ln -f /usr/bin/opam-2.5 /usr/bin/opam"))
2026-02-15 19:12.59 ---> using "de099de23ed215e5aa934a37013d9d90f80af6c95f1126a36c1dafd3f0c2771a" 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
2026-02-15 19:12.59 ---> using "e4567fea59e9f89f28721481af1347ec0e49e166b623b782f9469b741d323d8a" from cache


/src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))
Linux 6.8.0-87-generic
The OCaml toplevel, version 5.4.0
2.5.0
2026-02-15 19:12.59 ---> using "ca5e94ca25f331100bb4ff662a4a576c2a692e3deb6b97773656fd20c750ac37" from cache


/src: (workdir /src)


/src: (run (shell "sudo chown opam /src"))
2026-02-15 19:12.59 ---> using "a18645d69895a2ac0663dd277250036df2b7d0221e78508f58b24710dd49f470" 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


Already up-to-date.
Nothing to do.
# To update the current shell environment, run: eval $(opam env)
2026-02-15 19:12.59 ---> using "748e442f8d388112949bfdb629a9b5b5d36c6206ec2bed974128b1cbc4fecb66" from cache


/src: (copy (src multicore-bench.opam) (dst ./))
2026-02-15 19:12.59 ---> saved as "b80b9c64bc7904db22302e94b74dc1884aeac5dcf0e0bea90bf91f1956860354"


/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 19:13.00 ---> saved as "bb75590eecd714ac4da76a8c3f65178503900605a70b9496c075a6888971b4c8"


/src: (run (network host)
(shell "echo '(lang dune 3.0)' > './dune-project'"))
2026-02-15 19:13.00 ---> saved as "03c2a861943987b41523fb761358d5453d992af2848106540d4b5e61994e96b6"


/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.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.5.4.0 ocaml-base-compiler.5.4.0 ocaml-compiler.5.4.0 ocaml-config.3 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/bin/sudo "zypper" "--non-interactive" "refresh"
- Repository 'Update repository of openSUSE Backports' is up to date.
- Repository 'Update repository with updates from SUSE Linux Enterprise 15' is up to date.
- Repository 'Main Update Repository' is up to date.
- Repository 'Update Repository (Non-Oss)' is up to date.
- Repository 'Non-OSS Repository' is up to date.
- Repository 'Main Repository' is up to date.
- All repositories have been refreshed.


<><> 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 5.4.0).
[NOTE] Package ocaml-base-compiler is already installed (current version is 5.4.0).
[NOTE] Package ocaml is already installed (current version is 5.4.0).
[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).
# To update the current shell environment, run: eval $(opam env)
2026-02-15 19:13.08 ---> saved as "70d98ff463ae15b71625f968e5e5e7919760c14110bca83e111bb4c99b684a5a"


/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 5.4.0).
[NOTE] Package ocaml-base-compiler is already installed (current version is 5.4.0).
[NOTE] Package ocaml is already installed (current version is 5.4.0).
[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 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 ocamlfind.1.9.8  (cached)
-> retrieved ocamlbuild.0.16.1  (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 ocamlfind.1.9.8
-> installed ocamlbuild.0.16.1
-> installed topkg.1.1.1
-> installed fmt.0.11.0
-> installed mtime.2.1.0
-> installed astring.0.8.5
-> installed logs.0.10.0
-> installed dune.3.21.1
-> installed domain_shims.0.1.0
-> installed csexp.1.5.2
-> installed result.1.5
-> installed thread-table.1.0.0
-> installed backoff.0.1.1
-> installed ocaml-version.4.0.3
-> installed multicore-magic.2.3.2
-> installed camlp-streams.5.0.1
-> 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 19:13.41 ---> saved as "61b2a209e44b478f44c44a8cd1762a7aff6466ec84ce1a6d8cd749cb2c82e758"


/src: (copy (src .) (dst /src))
2026-02-15 19:13.42 ---> saved as "6dc0bf57664609ada8183b970564068c323c9799a2e3d0d7c09a7be1b842c6d5"


/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:
159.93 M/s
ops over time/get:
2653.52 M/s
ops over time/incr:
159.61 M/s
ops over time/push & pop:
99.53 M/s
ops over time/swap:
136.01 M/s
ops over time/xchg int:
163.61 M/s
time per op/cas int:
6.25 ns
time per op/get:
0.38 ns
time per op/incr:
6.27 ns
time per op/push & pop:
10.05 ns
time per op/swap:
7.35 ns
time per op/xchg int:
6.11 ns
Atomic incr:
ops over time/CAS, 1 domains:
156.40 M/s
ops over time/CAS, 2 domains:
61.16 M/s
ops over time/CAS, 4 domains:
62.80 M/s
ops over time/CAS, 8 domains:
61.40 M/s
ops over time/CAS with backoff, 1 domains:
156.24 M/s
ops over time/CAS with backoff, 2 domains:
72.71 M/s
ops over time/CAS with backoff, 4 domains:
47.82 M/s
ops over time/CAS with backoff, 8 domains:
34.71 M/s
ops over time/Incr, 1 domains:
149.41 M/s
ops over time/Incr, 2 domains:
71.43 M/s
ops over time/Incr, 4 domains:
70.92 M/s
ops over time/Incr, 8 domains:
88.89 M/s
time per op/CAS, 1 domains:
6.39 ns
time per op/CAS, 2 domains:
32.70 ns
time per op/CAS, 4 domains:
63.70 ns
time per op/CAS, 8 domains:
130.29 ns
time per op/CAS with backoff, 1 domains:
6.40 ns
time per op/CAS with backoff, 2 domains:
27.51 ns
time per op/CAS with backoff, 4 domains:
83.65 ns
time per op/CAS with backoff, 8 domains:
230.51 ns
time per op/Incr, 1 domains:
6.69 ns
time per op/Incr, 2 domains:
28.00 ns
time per op/Incr, 4 domains:
56.40 ns
time per op/Incr, 8 domains:
90.00 ns
Bounded_q:
messages over time/1 adder, 1 taker:
6.39 M/s
messages over time/1 adder, 2 takers:
2.47 M/s
messages over time/1 adder, 4 takers:
2.18 M/s
messages over time/2 adders, 1 taker:
3.71 M/s
messages over time/2 adders, 2 takers:
2.21 M/s
messages over time/2 adders, 4 takers:
1.59 M/s
messages over time/4 adders, 1 taker:
1.37 M/s
messages over time/4 adders, 2 takers:
1.70 M/s
messages over time/4 adders, 4 takers:
1.43 M/s
messages over time/one domain:
13.36 M/s
time per message/1 adder, 1 taker:
312.76 ns
time per message/1 adder, 2 takers:
1215.07 ns
time per message/1 adder, 4 takers:
2290.00 ns
time per message/2 adders, 1 taker:
808.54 ns
time per message/2 adders, 2 takers:
1807.12 ns
time per message/2 adders, 4 takers:
3767.22 ns
time per message/4 adders, 1 taker:
3650.35 ns
time per message/4 adders, 2 takers:
3527.56 ns
time per message/4 adders, 4 takers:
5581.42 ns
time per message/one domain:
74.87 ns
Hashtbl:
operations over time/1 worker, 10% reads:
16.87 M/s
operations over time/1 worker, 50% reads:
15.75 M/s
operations over time/1 worker, 90% reads:
18.60 M/s
operations over time/2 workers, 10% reads:
1.82 M/s
operations over time/2 workers, 50% reads:
2.46 M/s
operations over time/2 workers, 90% reads:
6.94 M/s
operations over time/4 workers, 10% reads:
1.09 M/s
operations over time/4 workers, 50% reads:
1.96 M/s
operations over time/4 workers, 90% reads:
3.77 M/s
operations over time/8 workers, 10% reads:
0.94 M/s
operations over time/8 workers, 50% reads:
1.90 M/s
operations over time/8 workers, 90% reads:
3.49 M/s
operations over time/one domain, 10% reads:
23.24 M/s
operations over time/one domain, 50% reads:
22.71 M/s
operations over time/one domain, 90% reads:
31.54 M/s
time per operation/1 worker, 10% reads:
59.27 ns
time per operation/1 worker, 50% reads:
63.49 ns
time per operation/1 worker, 90% reads:
53.75 ns
time per operation/2 workers, 10% reads:
1097.03 ns
time per operation/2 workers, 50% reads:
812.31 ns
time per operation/2 workers, 90% reads:
288.08 ns
time per operation/4 workers, 10% reads:
3660.79 ns
time per operation/4 workers, 50% reads:
2041.52 ns
time per operation/4 workers, 90% reads:
1061.96 ns
time per operation/8 workers, 10% reads:
8481.74 ns
time per operation/8 workers, 50% reads:
4206.49 ns
time per operation/8 workers, 90% reads:
2289.78 ns
time per operation/one domain, 10% reads:
43.03 ns
time per operation/one domain, 50% reads:
44.03 ns
time per operation/one domain, 90% reads:
31.71 ns
Queue:
messages over time/one domain:
38.16 M/s
time per message/one domain:
26.21 ns
Ref with Mutex:
ops over time/cas int:
41.04 M/s
ops over time/get:
39.05 M/s
ops over time/incr:
46.04 M/s
ops over time/push & pop:
31.26 M/s
ops over time/swap:
38.75 M/s
ops over time/xchg int:
38.60 M/s
time per op/cas int:
24.37 ns
time per op/get:
25.61 ns
time per op/incr:
21.72 ns
time per op/push & pop:
31.99 ns
time per op/swap:
25.80 ns
time per op/xchg int:
25.90 ns
Ref with [@poll error]:
ops over time/cas int:
223.46 M/s
ops over time/get:
2609.32 M/s
ops over time/incr:
438.75 M/s
ops over time/push & pop:
63.77 M/s
ops over time/swap:
116.17 M/s
ops over time/xchg int:
254.17 M/s
time per op/cas int:
4.48 ns
time per op/get:
0.38 ns
time per op/incr:
2.28 ns
time per op/push & pop:
15.68 ns
time per op/swap:
8.61 ns
time per op/xchg int:
3.93 ns
Stack:
messages over time/one domain:
42.62 M/s
time per message/one domain:
23.46 ns
Unix:
blocking reads over time/1 worker:
1.47 M/s
blocking reads over time/2 workers:
2.94 M/s
blocking reads over time/4 workers:
5.96 M/s
time per blocking read/1 worker:
678.59 ns
time per blocking read/2 workers:
679.86 ns
time per blocking read/4 workers:
671.64 ns
2026-02-15 19:13.54 ---> saved as "280470c57e648037f8eeb0be3c90af0e70ee4d443a2ce66f4863eefbc9716837"
Job succeeded
2026-02-15 19:13.54: Job succeeded