Getting StartedDocumentation
Organisationsocaml-multicoremulticore-benchadb1f6 ()debian-12-4.14_s390x_opam-2.3

debian-12-4.14_s390x_opam-2.3

Link Copied
Code Copied

Logs

Show raw logs
2025-05-05 07:58.07: New job: test ocaml-multicore/multicore-bench https://github.com/ocaml-multicore/multicore-bench.git#refs/heads/main (adb1f6a5d252f2a3952c65542f8dba1226ae5c3e) (linux-s390x:debian-12-4.14_s390x_opam-2.3)
Base: ocaml/opam:debian-12-ocaml-4.14@sha256:d2aefa78264607e5c9dd48539baf5160ee4a33efa7e4286f18b2d0f2e549c327
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 adb1f6a5
cat > Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-12-ocaml-4.14@sha256:d2aefa78264607e5c9dd48539baf5160ee4a33efa7e4286f18b2d0f2e549c327
# debian-12-4.14_s390x_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 35eb2f107a989a2d623b0bbe170696398fcb9b1e || git fetch origin master) && git reset -q --hard 35eb2f107a989a2d623b0bbe170696398fcb9b1e && 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.3.18.2 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.4.0.0 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.2.2.2"
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


2025-05-05 07:58.07: Using cache hint "ocaml-multicore/multicore-bench-ocaml/opam:debian-12-ocaml-4.14@sha256:d2aefa78264607e5c9dd48539baf5160ee4a33efa7e4286f18b2d0f2e549c327-debian-12-4.14_s390x_opam-2.3-ca79e40941293f2b07c18dfa608cc722"
2025-05-05 07:58.07: Using OBuilder spec:
((from ocaml/opam:debian-12-ocaml-4.14@sha256:d2aefa78264607e5c9dd48539baf5160ee4a33efa7e4286f18b2d0f2e549c327)
(comment debian-12-4.14_s390x_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 35eb2f107a989a2d623b0bbe170696398fcb9b1e || git fetch origin master) && git reset -q --hard 35eb2f107a989a2d623b0bbe170696398fcb9b1e && 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.3.18.2 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.4.0.0 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.2.2.2")
(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"))
)


2025-05-05 07:58.07: Waiting for resource in pool OCluster
2025-05-05 07:58.07: Waiting for worker…
2025-05-05 07:58.07: Got resource from pool OCluster
Building on s390x-worker-01.marist.ci.dev
All commits already cached
HEAD is now at adb1f6a Bench queues and stacks with heap allocated blocks


(from ocaml/opam:debian-12-ocaml-4.14@sha256:d2aefa78264607e5c9dd48539baf5160ee4a33efa7e4286f18b2d0f2e549c327)
Unable to find image 'ocaml/opam:debian-12-ocaml-4.14@sha256:d2aefa78264607e5c9dd48539baf5160ee4a33efa7e4286f18b2d0f2e549c327' locally
docker.io/ocaml/opam@sha256:d2aefa78264607e5c9dd48539baf5160ee4a33efa7e4286f18b2d0f2e549c327: Pulling from ocaml/opam
Digest: sha256:d2aefa78264607e5c9dd48539baf5160ee4a33efa7e4286f18b2d0f2e549c327
Status: Downloaded newer image for ocaml/opam@sha256:d2aefa78264607e5c9dd48539baf5160ee4a33efa7e4286f18b2d0f2e549c327
2025-05-05 07:58.08 ---> using "4519e2acb7b76404f380a57b9d66da47daa0254f2c4c3a9cdbb2f6183c108ef8" from cache


/: (comment debian-12-4.14_s390x_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"))
2025-05-05 07:58.08 ---> using "01b5bcb17125b9d617e1ebf9567eca246e24365cc95324936c21b1c21d12804d" 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
2025-05-05 07:58.08 ---> using "015f6ed25634798b6dd5dd47134ca5c64516ed4e1e9a18cbe68716fcb2600222" from cache


/src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))
Linux 6.8.0-55-generic
The OCaml toplevel, version 4.14.2
2.3.0
2025-05-05 07:58.08 ---> using "87c7ced9afd1c900724f217724b8f6a3c88669e6dbd06f0ff511cec4ba4654bf" from cache


/src: (workdir /src)


/src: (run (shell "sudo chown opam /src"))
2025-05-05 07:58.08 ---> using "a6ee203a71f1a364bb98808707f46782a97f717024e294dfc3566a91e9988c9d" from cache


/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "cd ~/opam-repository && (git cat-file -e 35eb2f107a989a2d623b0bbe170696398fcb9b1e || git fetch origin master) && git reset -q --hard 35eb2f107a989a2d623b0bbe170696398fcb9b1e && git log --no-decorate -n1 --oneline && opam update -u"))
From https://github.com/ocaml/opam-repository
* branch                  master     -> FETCH_HEAD
34a3fc46c3..35eb2f107a  master     -> origin/master
35eb2f107a Merge pull request #27838 from maiste/release-dune-3.18.2


<><> 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)
2025-05-05 07:58.08 ---> using "8fb9730ecdea8e564441dabe87935301b0e31013f370ea05dbecf1b91c0398c9" from cache


/src: (copy (src multicore-bench.opam) (dst ./))
2025-05-05 07:58.08 ---> using "84b02e5ed47196f1d562e2ee5cbee32d2426917020475f9556991eb3b3f9196d" from cache


/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)
2025-05-05 07:58.08 ---> using "70ea7706ecb57d08c4e5b2067d898e3dcd0fa1f04f1f2b74d75f5780ac47b4c2" from cache


/src: (run (network host)
(shell "echo '(lang dune 3.0)' > './dune-project'"))
2025-05-05 07:58.08 ---> using "b56675c67a08070576f3a97c6f29c183de83eb31c543613ee6df75b2686692db" from cache


/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.3.18.2 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.4.0.0 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.2.2.2")


/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://deb.debian.org/debian bookworm InRelease
- 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-security bookworm-security/main s390x Packages [227 kB]
- Fetched 331 kB in 0s (752 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).
2025-05-05 07:58.08 ---> using "d1f14511fbdd1dee9796c1393108e035338de320f1cf3b32b7a0ee029197e3a0" from cache


/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               3.18.2
- 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      4.0.0
- 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             2.2.2


<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved astring.0.8.5  (cached)
-> retrieved backoff.0.1.1  (cached)
-> retrieved camlp-streams.5.0.1  (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 mdx.2.5.0  (cached)
-> retrieved mtime.2.1.0  (cached)
-> retrieved ocaml-version.4.0.0  (cached)
-> retrieved multicore-magic.2.3.1  (cached)
-> retrieved ocamlbuild.0.16.1  (cached)
-> retrieved ocamlfind.1.9.8  (cached)
-> retrieved dune.3.18.2  (cached)
-> retrieved seq.base  (cached)
-> retrieved re.1.12.0  (cached)
-> retrieved result.1.5  (cached)
-> retrieved thread-table.1.0.0  (cached)
-> retrieved topkg.1.0.8  (cached)
-> retrieved yojson.2.2.2  (cached)
-> installed cmdliner.1.3.0
-> installed ocamlbuild.0.16.1
-> installed seq.base
-> installed ocamlfind.1.9.8
-> installed topkg.1.0.8
-> installed fmt.0.10.0
-> installed astring.0.8.5
-> installed mtime.2.1.0
-> installed logs.0.8.0
-> installed dune.3.18.2
-> installed backoff.0.1.1
-> installed camlp-streams.5.0.1
-> installed csexp.1.5.2
-> installed domain_shims.0.1.0
-> installed ocaml-version.4.0.0
-> installed multicore-magic.2.3.1
-> installed cppo.1.8.0
-> installed result.1.5
-> installed thread-table.1.0.0
-> installed domain-local-await.1.0.1
-> installed re.1.12.0
-> installed yojson.2.2.2
-> installed mdx.2.5.0
Done.
# To update the current shell environment, run: eval $(opam env)
2025-05-05 07:58.08 ---> using "5e0360ad95ae01ca7b51c1d80510f26e6b34d6e2e9f603f9406f4551bbee5d1e" from cache


/src: (copy (src .) (dst /src))
2025-05-05 07:58.14 ---> saved as "89cba9828806c2317164f0590d978865f67fe48606a4053041afbac54711397d"


/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:
203.67 M/s
ops over time/get:
611.37 M/s
ops over time/incr:
288.21 M/s
ops over time/push & pop:
104.85 M/s
ops over time/swap:
124.85 M/s
ops over time/xchg int:
203.64 M/s
time per op/cas int:
4.91 ns
time per op/get:
1.64 ns
time per op/incr:
3.47 ns
time per op/push & pop:
9.54 ns
time per op/swap:
8.01 ns
time per op/xchg int:
4.91 ns
Atomic incr:
ops over time/CAS, 1 domains:
209.75 M/s
ops over time/CAS with backoff, 1 domains:
201.06 M/s
ops over time/Incr, 1 domains:
415.40 M/s
time per op/CAS, 1 domains:
4.77 ns
time per op/CAS with backoff, 1 domains:
4.97 ns
time per op/Incr, 1 domains:
2.41 ns
Bounded_q:
messages over time/one domain:
13.67 M/s
time per message/one domain:
73.15 ns
Hashtbl:
operations over time/1 worker, 10% reads:
16.63 M/s
operations over time/1 worker, 50% reads:
16.77 M/s
operations over time/1 worker, 90% reads:
19.23 M/s
operations over time/2 workers, 10% reads:
15.45 M/s
operations over time/2 workers, 50% reads:
15.64 M/s
operations over time/2 workers, 90% reads:
19.40 M/s
operations over time/4 workers, 10% reads:
15.50 M/s
operations over time/4 workers, 50% reads:
15.47 M/s
operations over time/4 workers, 90% reads:
17.61 M/s
operations over time/8 workers, 10% reads:
15.38 M/s
operations over time/8 workers, 50% reads:
15.29 M/s
operations over time/8 workers, 90% reads:
17.46 M/s
operations over time/one domain, 10% reads:
22.79 M/s
operations over time/one domain, 50% reads:
17.32 M/s
operations over time/one domain, 90% reads:
26.74 M/s
time per operation/1 worker, 10% reads:
60.15 ns
time per operation/1 worker, 50% reads:
59.62 ns
time per operation/1 worker, 90% reads:
52.00 ns
time per operation/2 workers, 10% reads:
129.43 ns
time per operation/2 workers, 50% reads:
127.91 ns
time per operation/2 workers, 90% reads:
103.08 ns
time per operation/4 workers, 10% reads:
258.11 ns
time per operation/4 workers, 50% reads:
258.61 ns
time per operation/4 workers, 90% reads:
227.25 ns
time per operation/8 workers, 10% reads:
520.20 ns
time per operation/8 workers, 50% reads:
523.11 ns
time per operation/8 workers, 90% reads:
458.31 ns
time per operation/one domain, 10% reads:
43.88 ns
time per operation/one domain, 50% reads:
57.72 ns
time per operation/one domain, 90% reads:
37.39 ns
Queue:
messages over time/one domain:
29.64 M/s
time per message/one domain:
33.74 ns
Ref with Mutex:
ops over time/cas int:
58.12 M/s
ops over time/get:
69.24 M/s
ops over time/incr:
66.51 M/s
ops over time/push & pop:
56.20 M/s
ops over time/swap:
53.07 M/s
ops over time/xchg int:
57.93 M/s
time per op/cas int:
17.20 ns
time per op/get:
14.44 ns
time per op/incr:
15.03 ns
time per op/push & pop:
17.79 ns
time per op/swap:
18.84 ns
time per op/xchg int:
17.26 ns
Ref with [@poll error]:
ops over time/cas int:
203.70 M/s
ops over time/get:
611.11 M/s
ops over time/incr:
494.89 M/s
ops over time/push & pop:
113.80 M/s
ops over time/swap:
128.60 M/s
ops over time/xchg int:
203.71 M/s
time per op/cas int:
4.91 ns
time per op/get:
1.64 ns
time per op/incr:
2.02 ns
time per op/push & pop:
8.79 ns
time per op/swap:
7.78 ns
time per op/xchg int:
4.91 ns
Stack:
messages over time/one domain:
39.28 M/s
time per message/one domain:
25.46 ns
Unix:
blocking reads over time/1 worker:
1.89 M/s
time per blocking read/1 worker:
528.42 ns
2025-05-05 07:58.40 ---> saved as "874deea59cb02a825eb09b2d209e1a0388635ef64675337949aafe483100384b"
Job succeeded
2025-05-05 07:58.45: Job succeeded