ubuntu-22.04-4.14_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-x86_64:ubuntu-22.04-4.14_opam-2.3)
Base: ocaml/opam:ubuntu-22.04-ocaml-4.14@sha256:c980f6b0d44f646408a6da0b68ccee37aabe1d512bc2551eaa7b6a7f12e12efe
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:ubuntu-22.04-ocaml-4.14@sha256:c980f6b0d44f646408a6da0b68ccee37aabe1d512bc2551eaa7b6a7f12e12efe
# ubuntu-22.04-4.14_opam-2.3
USER 1000:1000
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:ubuntu-22.04-ocaml-4.14@sha256:c980f6b0d44f646408a6da0b68ccee37aabe1d512bc2551eaa7b6a7f12e12efe-ubuntu-22.04-4.14_opam-2.3-5e4c8ffe3a82688c609d0a76996fa04b"
2025-06-12 14:21.29: Using OBuilder spec:
((from ocaml/opam:ubuntu-22.04-ocaml-4.14@sha256:c980f6b0d44f646408a6da0b68ccee37aabe1d512bc2551eaa7b6a7f12e12efe)
(comment ubuntu-22.04-4.14_opam-2.3)
(user (uid 1000) (gid 1000))
(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 19:18.37: Waiting for worker…
2025-06-12 19:21.05: Got resource from pool OCluster
Building on asteria.caelum.ci.dev
All commits already cached
HEAD is now at d2dcd9f Try to avoid false sharing


(from ocaml/opam:ubuntu-22.04-ocaml-4.14@sha256:c980f6b0d44f646408a6da0b68ccee37aabe1d512bc2551eaa7b6a7f12e12efe)
2025-06-12 19:52.45 ---> using "d1d3b23962d55678bb9b5abf2fe8367fedd631a0d6556be1173502d405b3e0b6" from cache


/: (comment ubuntu-22.04-4.14_opam-2.3)


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


/: (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 19:52.45 ---> using "274d81381ec92c707b53caa99075cb2d3ae849a18026f70f9eee48c58b6e4c11" 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 19:52.45 ---> using "2cb76ba463f7d9ba2f71e8f2c7ab108250695613b50584da06d4259acf24f238" from cache


/src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))
Linux 5.15.0-134-generic
The OCaml toplevel, version 4.14.2
2.3.0
2025-06-12 19:52.45 ---> using "ec40ed72a3883d689e443e675288c2e44e39f26374e026df56c2fe54865670cb" from cache


/src: (workdir /src)


/src: (run (shell "sudo chown opam /src"))
2025-06-12 19:52.45 ---> using "edf5fdb24b3dd9af66ad958b0ca69d53a80ab213966e5c91c2f6d263818a68f4" 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
ac2e5da567..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 19:52.45 ---> using "a9abd343817a3b8bfc08c1dd9fcfd3df3826ca8b6548861e7d07f39c8001160c" from cache


/src: (copy (src multicore-bench.opam) (dst ./))
2025-06-12 19:52.45 ---> saved as "31da85f30b0f28aad904c4a18481977590733e9897c5a7642cff73eccbe94a38"


/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 19:52.47 ---> saved as "acea61bb6256967b2a95d7d93bd7184bf7ab8099c2a6702a1129367e02ac424d"


/src: (run (network host)
(shell "echo '(lang dune 3.0)' > './dune-project'"))
2025-06-12 19:52.48 ---> saved as "b1aa1f1c20f231c0db3ee2e7ffcef6e968f70877c32f11f7856b5e4f5cf65abb"


/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"
- Hit:1 http://archive.ubuntu.com/ubuntu jammy InRelease
- Get:2 http://archive.ubuntu.com/ubuntu jammy-updates InRelease [128 kB]
- Get:3 http://security.ubuntu.com/ubuntu jammy-security InRelease [129 kB]
- Get:4 http://archive.ubuntu.com/ubuntu jammy-backports InRelease [127 kB]
- Get:5 http://security.ubuntu.com/ubuntu jammy-security/restricted amd64 Packages [4476 kB]
- Get:6 http://security.ubuntu.com/ubuntu jammy-security/universe amd64 Packages [1246 kB]
- Get:7 http://archive.ubuntu.com/ubuntu jammy-updates/restricted amd64 Packages [4630 kB]
- Get:8 http://security.ubuntu.com/ubuntu jammy-security/main amd64 Packages [2984 kB]
- Get:9 http://archive.ubuntu.com/ubuntu jammy-updates/universe amd64 Packages [1553 kB]
- Get:10 http://archive.ubuntu.com/ubuntu jammy-updates/main amd64 Packages [3296 kB]
- Fetched 18.6 MB in 1s (15.9 MB/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 19:53.03 ---> saved as "c425f2cef17efa19d1bf4a33a8f03171ef3cf896da574ceaef7ff4dfb70527fa"


/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 backoff.0.1.1  (cached)
-> retrieved camlp-streams.5.0.1  (cached)
-> retrieved astring.0.8.5  (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.0.10.0  (cached)
-> retrieved logs.0.8.0  (cached)
-> retrieved mtime.2.1.0  (cached)
-> retrieved multicore-magic.2.3.1  (cached)
-> retrieved mdx.2.5.0  (cached)
-> retrieved ocaml-version.4.0.1  (cached)
-> retrieved ocamlbuild.0.16.1  (cached)
-> retrieved ocamlfind.1.9.8  (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 ocamlbuild.0.16.1
-> installed ocamlfind.1.9.8
-> 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 domain_shims.0.1.0
-> installed csexp.1.5.2
-> installed camlp-streams.5.0.1
-> installed backoff.0.1.1
-> installed result.1.5
-> installed ocaml-version.4.0.1
-> installed thread-table.1.0.0
-> installed multicore-magic.2.3.1
-> installed domain-local-await.1.0.1
-> installed re.1.12.0
-> installed cppo.1.8.0
-> installed yojson.3.0.0
-> installed mdx.2.5.0
Done.
# To update the current shell environment, run: eval $(opam env)
2025-06-12 19:53.39 ---> saved as "44fdbe00093d104d181a16d5314817dc1f42a3de86ba54e043f8688613c043d8"


/src: (copy (src .) (dst /src))
2025-06-12 19:53.39 ---> saved as "d9c810c740937e1531a85f5c8ca7e436f2b0a6ba528824d8c31225aa9b9c4cdb"


/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:
181.56 M/s
ops over time/get:
653.70 M/s
ops over time/incr:
254.19 M/s
ops over time/push & pop:
95.15 M/s
ops over time/swap:
111.78 M/s
ops over time/xchg int:
192.23 M/s
time per op/cas int:
5.51 ns
time per op/get:
1.53 ns
time per op/incr:
3.93 ns
time per op/push & pop:
10.51 ns
time per op/swap:
8.95 ns
time per op/xchg int:
5.20 ns
Atomic incr:
ops over time/CAS, 1 domains:
225.71 M/s
ops over time/CAS with backoff, 1 domains:
224.80 M/s
ops over time/Incr, 1 domains:
241.40 M/s
time per op/CAS, 1 domains:
4.43 ns
time per op/CAS with backoff, 1 domains:
4.45 ns
time per op/Incr, 1 domains:
4.14 ns
Bounded_q:
messages over time/one domain:
15.63 M/s
time per message/one domain:
63.98 ns
Hashtbl:
operations over time/1 worker, 10% reads:
16.49 M/s
operations over time/1 worker, 50% reads:
16.19 M/s
operations over time/1 worker, 90% reads:
19.66 M/s
operations over time/2 workers, 10% reads:
16.33 M/s
operations over time/2 workers, 50% reads:
16.03 M/s
operations over time/2 workers, 90% reads:
19.78 M/s
operations over time/4 workers, 10% reads:
15.84 M/s
operations over time/4 workers, 50% reads:
15.59 M/s
operations over time/4 workers, 90% reads:
19.08 M/s
operations over time/8 workers, 10% reads:
15.86 M/s
operations over time/8 workers, 50% reads:
14.51 M/s
operations over time/8 workers, 90% reads:
17.86 M/s
operations over time/one domain, 10% reads:
19.38 M/s
operations over time/one domain, 50% reads:
22.79 M/s
operations over time/one domain, 90% reads:
29.27 M/s
time per operation/1 worker, 10% reads:
60.65 ns
time per operation/1 worker, 50% reads:
61.78 ns
time per operation/1 worker, 90% reads:
50.88 ns
time per operation/2 workers, 10% reads:
122.45 ns
time per operation/2 workers, 50% reads:
124.76 ns
time per operation/2 workers, 90% reads:
101.10 ns
time per operation/4 workers, 10% reads:
252.56 ns
time per operation/4 workers, 50% reads:
256.65 ns
time per operation/4 workers, 90% reads:
209.69 ns
time per operation/8 workers, 10% reads:
504.47 ns
time per operation/8 workers, 50% reads:
551.41 ns
time per operation/8 workers, 90% reads:
448.01 ns
time per operation/one domain, 10% reads:
51.59 ns
time per operation/one domain, 50% reads:
43.89 ns
time per operation/one domain, 90% reads:
34.16 ns
Queue:
messages over time/one domain:
39.68 M/s
time per message/one domain:
25.20 ns
Ref with Mutex:
ops over time/cas int:
54.77 M/s
ops over time/get:
56.08 M/s
ops over time/incr:
52.29 M/s
ops over time/push & pop:
51.81 M/s
ops over time/swap:
53.58 M/s
ops over time/xchg int:
54.97 M/s
time per op/cas int:
18.26 ns
time per op/get:
17.83 ns
time per op/incr:
19.12 ns
time per op/push & pop:
19.30 ns
time per op/swap:
18.66 ns
time per op/xchg int:
18.19 ns
Ref with [@poll error]:
ops over time/cas int:
249.45 M/s
ops over time/get:
654.39 M/s
ops over time/incr:
304.45 M/s
ops over time/push & pop:
95.68 M/s
ops over time/swap:
133.63 M/s
ops over time/xchg int:
250.97 M/s
time per op/cas int:
4.01 ns
time per op/get:
1.53 ns
time per op/incr:
3.28 ns
time per op/push & pop:
10.45 ns
time per op/swap:
7.48 ns
time per op/xchg int:
3.98 ns
Stack:
messages over time/one domain:
44.03 M/s
time per message/one domain:
22.71 ns
Unix:
blocking reads over time/1 worker:
0.52 M/s
time per blocking read/1 worker:
1928.89 ns
2025-06-12 19:53.44 ---> saved as "0085e6e6111dc8afe2754d4863164d077d683c2ea96d9082381afce6df42bb4c"
Job succeeded
2025-06-12 19:53.44: Job succeeded