debian-13-5.4~alpha1_opam-2.4

2025-10-09 20:51.49: New job: test ocaml-multicore/multicore-bench https://github.com/ocaml-multicore/multicore-bench.git#refs/heads/main (efb15d8562dbdc1ba976ffc574de028e3c11c123) (linux-x86_64:debian-13-5.4~alpha1_opam-2.4)
Base: ocaml/opam:debian-13-ocaml-5.4-alpha1@sha256:5396767118678323afec8d18868ef6e4e121597d86df1d623652605126aa1a1b
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-5.4-alpha1@sha256:5396767118678323afec8d18868ef6e4e121597d86df1d623652605126aa1a1b
# debian-13-5.4~alpha1_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 5fa485a3e0921a1bb8337a6c35f106a48b9516e7 || git fetch origin master) && git reset -q --hard 5fa485a3e0921a1bb8337a6c35f106a48b9516e7 && 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.2.0.0 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.2.5.1 mtime.2.1.0 multicore-magic.2.3.1 ocaml.5.4.0 ocaml-base-compiler.5.4.0~alpha1 ocaml-compiler.5.4.0~alpha1 ocaml-config.3 ocaml-options-vanilla.1 ocaml-version.4.0.2 ocamlbuild.0.16.1 ocamlfind.1.9.8 re.1.14.0 result.1.5 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


2025-10-09 20:51.49: Using cache hint "ocaml-multicore/multicore-bench-ocaml/opam:debian-13-ocaml-5.4-alpha1@sha256:5396767118678323afec8d18868ef6e4e121597d86df1d623652605126aa1a1b-debian-13-5.4~alpha1_opam-2.4-1e0baaf38627726e013cec71fe6295b9"
2025-10-09 20:51.49: Using OBuilder spec:
((from ocaml/opam:debian-13-ocaml-5.4-alpha1@sha256:5396767118678323afec8d18868ef6e4e121597d86df1d623652605126aa1a1b)
(comment debian-13-5.4~alpha1_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 5fa485a3e0921a1bb8337a6c35f106a48b9516e7 || git fetch origin master) && git reset -q --hard 5fa485a3e0921a1bb8337a6c35f106a48b9516e7 && 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.2.0.0 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.2.5.1 mtime.2.1.0 multicore-magic.2.3.1 ocaml.5.4.0 ocaml-base-compiler.5.4.0~alpha1 ocaml-compiler.5.4.0~alpha1 ocaml-config.3 ocaml-options-vanilla.1 ocaml-version.4.0.2 ocamlbuild.0.16.1 ocamlfind.1.9.8 re.1.14.0 result.1.5 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"))
)


2025-10-09 20:51.49: Waiting for resource in pool OCluster
2025-10-09 20:51.50: Waiting for worker…
2025-10-09 20:51.50: Got resource from pool OCluster
Building on laodoke.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-5.4-alpha1@sha256:5396767118678323afec8d18868ef6e4e121597d86df1d623652605126aa1a1b)
2025-10-09 20:51.50 ---> using "3f95d81d4822767d9dc599129c8ce8bc534ab02216a869abc23583d80d41a357" from cache


/: (comment debian-13-5.4~alpha1_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"))
2025-10-09 20:51.50 ---> saved as "c297e5790b4ce7401cade9c992adb0d74b2144108546ec7f38adf6e8c2609fcb"


/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 ><><><><><><><><><><><><><><><><><><><><><><><><><><>
[ERROR] Could not update repository "beta": "/usr/bin/git fetch -q" exited with code 128 "fatal: unable to access 'https://github.com/ocaml/ocaml-beta-repository/': Could not resolve host: github.com"
[default] Initialised
2025-10-09 20:52.18 ---> saved as "176d5477f6f38657c9c223e003e7a16a585578b122ebb4ee9130505568775ad4"


/src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))
Linux 5.15.0-156-generic
The OCaml toplevel, version 5.4.0~alpha1
2.4.1
2025-10-09 20:52.19 ---> saved as "ac92732adaca17f989c8bc41a2514b34e9f3d6afcd57819041a848914cf46e24"


/src: (workdir /src)


/src: (run (shell "sudo chown opam /src"))
2025-10-09 20:52.19 ---> saved as "7f03a2f5f5de6daba403c6491d6e69d6bd69f5c2f6c526e2a95be5dc33974134"


/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "cd ~/opam-repository && (git cat-file -e 5fa485a3e0921a1bb8337a6c35f106a48b9516e7 || git fetch origin master) && git reset -q --hard 5fa485a3e0921a1bb8337a6c35f106a48b9516e7 && git log --no-decorate -n1 --oneline && opam update -u"))
From https://github.com/ocaml/opam-repository
* branch                  master     -> FETCH_HEAD
bcac5d1731..38a1469dbb  master     -> origin/master
5fa485a3e0 Merge pull request #28665 from mtelvers/opam-publish-ocaml-version.4.0.2


<><> Updating package repositories ><><><><><><><><><><><><><><><><><><><><><><>
[beta] no changes from git+https://github.com/ocaml/ocaml-beta-repository
[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-base-compiler.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)
2025-10-09 20:52.44 ---> saved as "c772c82db1dcecf79f4eb8d4f8ffc86da37bd59f12842636047b050644758290"


/src: (copy (src multicore-bench.opam) (dst ./))
2025-10-09 20:52.44 ---> saved as "530649864b34813e2c0238e615424d20fbb1a16b73d90508fd53b4aee6e853c8"


/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)
2025-10-09 20:52.47 ---> saved as "751cd746a0877f439d75b0f28e73d618d6340ed6b432c15157219becb23a04bf"


/src: (run (network host)
(shell "echo '(lang dune 3.0)' > './dune-project'"))
2025-10-09 20:52.47 ---> saved as "d81b95cfbf5e82168e7f6f4300ed41259c0ad244af756d8ecb4dcfda88d96e50"


/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.2.0.0 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.2.5.1 mtime.2.1.0 multicore-magic.2.3.1 ocaml.5.4.0 ocaml-base-compiler.5.4.0~alpha1 ocaml-compiler.5.4.0~alpha1 ocaml-config.3 ocaml-options-vanilla.1 ocaml-version.4.0.2 ocamlbuild.0.16.1 ocamlfind.1.9.8 re.1.14.0 result.1.5 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 amd64 Packages [52.2 kB]
- Fetched 143 kB in 0s (1061 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 3).
[NOTE] Package ocaml-compiler is already installed (current version is 5.4.0~alpha1).
[NOTE] Package ocaml-base-compiler is already installed (current version is 5.4.0~alpha1).
[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).
2025-10-09 20:53.07 ---> saved as "51fa716ad7675f33fb9c5f4eabcb75996c85565c4246bd055914ee50c41c0d5b"


/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~alpha1).
[NOTE] Package ocaml-base-compiler is already installed (current version is 5.4.0~alpha1).
[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           2.0.0
- 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                2.5.1
- install mtime              2.1.0
- install multicore-magic    2.3.1
- install ocaml-version      4.0.2
- 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              1.1.0
- 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 cppo.1.8.0  (cached)
-> retrieved csexp.1.5.2  (cached)
-> retrieved domain-local-await.1.0.1  (cached)
-> retrieved cmdliner.2.0.0  (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 multicore-magic.2.3.1  (cached)
-> retrieved ocaml-version.4.0.2  (cached)
-> retrieved mdx.2.5.1  (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 yojson.3.0.0  (cached)
-> retrieved topkg.1.1.0  (cached)
-> retrieved dune.3.20.2  (cached)
-> installed cmdliner.2.0.0
-> installed ocamlfind.1.9.8
-> installed ocamlbuild.0.16.1
-> installed topkg.1.1.0
-> installed fmt.0.11.0
-> installed mtime.2.1.0
-> 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 result.1.5
-> installed backoff.0.1.1
-> installed ocaml-version.4.0.2
-> installed thread-table.1.0.0
-> installed camlp-streams.5.0.1
-> installed multicore-magic.2.3.1
-> 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)
2025-10-09 20:55.19 ---> saved as "6e098db32708f216f824ece350fa45cf4eed9bb3896a04cebb144145a9111e24"


/src: (copy (src .) (dst /src))
2025-10-09 20:55.19 ---> saved as "5290f26cbf44b14a3924ac62775e36471ffef03403d73b44807df5ce09b25383"


/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:
68.47 M/s
ops over time/get:
1338.66 M/s
ops over time/incr:
35.13 M/s
ops over time/push & pop:
9.48 M/s
ops over time/swap:
4.40 M/s
ops over time/xchg int:
69.70 M/s
time per op/cas int:
14.60 ns
time per op/get:
0.75 ns
time per op/incr:
28.46 ns
time per op/push & pop:
105.49 ns
time per op/swap:
227.08 ns
time per op/xchg int:
14.35 ns
Atomic incr:
ops over time/CAS, 1 domains:
39.84 M/s
ops over time/CAS, 2 domains:
46.61 M/s
ops over time/CAS, 4 domains:
11.66 M/s
ops over time/CAS, 8 domains:
4.04 M/s
ops over time/CAS with backoff, 1 domains:
53.95 M/s
ops over time/CAS with backoff, 2 domains:
52.54 M/s
ops over time/CAS with backoff, 4 domains:
21.13 M/s
ops over time/CAS with backoff, 8 domains:
6.21 M/s
ops over time/Incr, 1 domains:
61.03 M/s
ops over time/Incr, 2 domains:
108.43 M/s
ops over time/Incr, 4 domains:
19.08 M/s
ops over time/Incr, 8 domains:
7.35 M/s
time per op/CAS, 1 domains:
25.10 ns
time per op/CAS, 2 domains:
42.91 ns
time per op/CAS, 4 domains:
343.09 ns
time per op/CAS, 8 domains:
1980.05 ns
time per op/CAS with backoff, 1 domains:
18.53 ns
time per op/CAS with backoff, 2 domains:
38.07 ns
time per op/CAS with backoff, 4 domains:
189.27 ns
time per op/CAS with backoff, 8 domains:
1288.54 ns
time per op/Incr, 1 domains:
16.39 ns
time per op/Incr, 2 domains:
18.45 ns
time per op/Incr, 4 domains:
209.69 ns
time per op/Incr, 8 domains:
1088.91 ns
Bounded_q:
messages over time/1 adder, 1 taker:
4.08 M/s
messages over time/1 adder, 2 takers:
2.74 M/s
messages over time/1 adder, 4 takers:
1.74 M/s
messages over time/2 adders, 1 taker:
4.58 M/s
messages over time/2 adders, 2 takers:
3.02 M/s
messages over time/2 adders, 4 takers:
2.62 M/s
messages over time/4 adders, 1 taker:
2.89 M/s
messages over time/4 adders, 2 takers:
2.32 M/s
messages over time/4 adders, 4 takers:
1.45 M/s
messages over time/one domain:
3.88 M/s
time per message/1 adder, 1 taker:
490.59 ns
time per message/1 adder, 2 takers:
1095.65 ns
time per message/1 adder, 4 takers:
2866.92 ns
time per message/2 adders, 1 taker:
654.72 ns
time per message/2 adders, 2 takers:
1324.65 ns
time per message/2 adders, 4 takers:
2286.22 ns
time per message/4 adders, 1 taker:
1727.37 ns
time per message/4 adders, 2 takers:
2586.35 ns
time per message/4 adders, 4 takers:
5516.77 ns
time per message/one domain:
257.70 ns
Hashtbl:
operations over time/1 worker, 10% reads:
6.92 M/s
operations over time/1 worker, 50% reads:
5.87 M/s
operations over time/1 worker, 90% reads:
7.80 M/s
operations over time/2 workers, 10% reads:
5.91 M/s
operations over time/2 workers, 50% reads:
6.48 M/s
operations over time/2 workers, 90% reads:
6.11 M/s
operations over time/4 workers, 10% reads:
4.22 M/s
operations over time/4 workers, 50% reads:
3.59 M/s
operations over time/4 workers, 90% reads:
3.86 M/s
operations over time/8 workers, 10% reads:
2.61 M/s
operations over time/8 workers, 50% reads:
2.75 M/s
operations over time/8 workers, 90% reads:
3.29 M/s
operations over time/one domain, 10% reads:
5.50 M/s
operations over time/one domain, 50% reads:
8.11 M/s
operations over time/one domain, 90% reads:
7.33 M/s
time per operation/1 worker, 10% reads:
144.57 ns
time per operation/1 worker, 50% reads:
170.39 ns
time per operation/1 worker, 90% reads:
128.19 ns
time per operation/2 workers, 10% reads:
338.34 ns
time per operation/2 workers, 50% reads:
308.82 ns
time per operation/2 workers, 90% reads:
327.57 ns
time per operation/4 workers, 10% reads:
948.19 ns
time per operation/4 workers, 50% reads:
1113.84 ns
time per operation/4 workers, 90% reads:
1035.03 ns
time per operation/8 workers, 10% reads:
3067.14 ns
time per operation/8 workers, 50% reads:
2913.93 ns
time per operation/8 workers, 90% reads:
2431.17 ns
time per operation/one domain, 10% reads:
181.85 ns
time per operation/one domain, 50% reads:
123.28 ns
time per operation/one domain, 90% reads:
136.36 ns
Queue:
messages over time/one domain:
16.64 M/s
time per message/one domain:
60.10 ns
Ref with Mutex:
ops over time/cas int:
13.12 M/s
ops over time/get:
16.79 M/s
ops over time/incr:
17.84 M/s
ops over time/push & pop:
9.63 M/s
ops over time/swap:
15.75 M/s
ops over time/xchg int:
14.80 M/s
time per op/cas int:
76.23 ns
time per op/get:
59.57 ns
time per op/incr:
56.06 ns
time per op/push & pop:
103.85 ns
time per op/swap:
63.49 ns
time per op/xchg int:
67.57 ns
Ref with [@poll error]:
ops over time/cas int:
122.85 M/s
ops over time/get:
1279.70 M/s
ops over time/incr:
374.85 M/s
ops over time/push & pop:
8.64 M/s
ops over time/swap:
28.52 M/s
ops over time/xchg int:
128.07 M/s
time per op/cas int:
8.14 ns
time per op/get:
0.78 ns
time per op/incr:
2.67 ns
time per op/push & pop:
115.68 ns
time per op/swap:
35.06 ns
time per op/xchg int:
7.81 ns
Stack:
messages over time/one domain:
17.42 M/s
time per message/one domain:
57.40 ns
Unix:
blocking reads over time/1 worker:
0.67 M/s
blocking reads over time/2 workers:
1.54 M/s
blocking reads over time/4 workers:
1.31 M/s
time per blocking read/1 worker:
1492.75 ns
time per blocking read/2 workers:
1301.64 ns
time per blocking read/4 workers:
3054.78 ns
2025-10-09 20:56.48 ---> saved as "3c96aa38f04e16ed13cb6f5e8042fbec23d619035e075765d6bf8f71d2f22d5a"
Job succeeded
2025-10-09 20:56.48: Job succeeded