Organisationsocaml-multicoremulticore-bench41eee8 ()ubuntu-24.04-5.2_opam-2.2

ubuntu-24.04-5.2_opam-2.2

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2024-10-13 10:51.57: New job: test ocaml-multicore/multicore-bench https://github.com/ocaml-multicore/multicore-bench.git#refs/heads/avoid-include (41eee82fd48033f4776d3f75dd5693eebba2176a) (linux-x86_64:ubuntu-24.04-5.2_opam-2.2)
Base: ocaml/opam:ubuntu-24.04-ocaml-5.2@sha256:00a95d2fe40951c97439f00b71e114dc26d6721b1faf1e26e9da8aca07f041db
Opam project build

To reproduce locally:

git clone --recursive "https://github.com/ocaml-multicore/multicore-bench.git" -b "avoid-include" && cd "multicore-bench" && git reset --hard 41eee82f
cat > Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:ubuntu-24.04-ocaml-5.2@sha256:00a95d2fe40951c97439f00b71e114dc26d6721b1faf1e26e9da8aca07f041db
# ubuntu-24.04-5.2_opam-2.2
USER 1000:1000
ENV CLICOLOR_FORCE="1"
ENV OPAMCOLOR="always"
WORKDIR /src
RUN sudo ln -f /usr/bin/opam-2.2 /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 b876d7d37014df697368765c088aa86d24dc8b6b || git fetch origin master) && git reset -q --hard b876d7d37014df697368765c088aa86d24dc8b6b && git log --no-decorate -n1 --oneline && opam update -u
COPY --chown=1000:1000 multicore-bench.opam ./
RUN opam pin add -yn multicore-bench.dev './'
ENV DEPS="astring.0.8.5 backoff.0.1.1 base-bigarray.base base-domains.base base-nnp.base base-threads.base base-unix.base camlp-streams.5.0.1 cmdliner.1.3.0 cppo.1.7.0 csexp.1.5.2 domain-local-await.1.0.1 domain_shims.0.1.0 dune.3.16.0 fmt.0.9.0 host-arch-x86_64.1 host-system-other.1 logs.0.7.0 mdx.2.4.1 mtime.2.1.0 multicore-magic.2.3.0 ocaml.5.2.0 ocaml-base-compiler.5.2.0 ocaml-config.3 ocaml-options-vanilla.1 ocaml-version.3.6.9 ocamlbuild.0.15.0 ocamlfind.1.9.6 re.1.12.0 result.1.5 seq.base thread-table.1.0.0 topkg.1.0.7 yojson.2.2.2"
ENV CI="true"
ENV OCAMLCI="true"
RUN opam update --depexts && opam install --cli=2.2 --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

2024-10-13 10:51.57: Using cache hint "ocaml-multicore/multicore-bench-ocaml/opam:ubuntu-24.04-ocaml-5.2@sha256:00a95d2fe40951c97439f00b71e114dc26d6721b1faf1e26e9da8aca07f041db-ubuntu-24.04-5.2_opam-2.2-aa8e70cdb28d40dc60d3b3c4e487b830"
2024-10-13 10:51.57: Using OBuilder spec:
((from ocaml/opam:ubuntu-24.04-ocaml-5.2@sha256:00a95d2fe40951c97439f00b71e114dc26d6721b1faf1e26e9da8aca07f041db)
 (comment ubuntu-24.04-5.2_opam-2.2)
 (user (uid 1000) (gid 1000))
 (env CLICOLOR_FORCE 1)
 (env OPAMCOLOR always)
 (workdir /src)
 (run (shell "sudo ln -f /usr/bin/opam-2.2 /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 b876d7d37014df697368765c088aa86d24dc8b6b || git fetch origin master) && git reset -q --hard b876d7d37014df697368765c088aa86d24dc8b6b && 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 './'"))
 (env DEPS "astring.0.8.5 backoff.0.1.1 base-bigarray.base base-domains.base base-nnp.base base-threads.base base-unix.base camlp-streams.5.0.1 cmdliner.1.3.0 cppo.1.7.0 csexp.1.5.2 domain-local-await.1.0.1 domain_shims.0.1.0 dune.3.16.0 fmt.0.9.0 host-arch-x86_64.1 host-system-other.1 logs.0.7.0 mdx.2.4.1 mtime.2.1.0 multicore-magic.2.3.0 ocaml.5.2.0 ocaml-base-compiler.5.2.0 ocaml-config.3 ocaml-options-vanilla.1 ocaml-version.3.6.9 ocamlbuild.0.15.0 ocamlfind.1.9.6 re.1.12.0 result.1.5 seq.base thread-table.1.0.0 topkg.1.0.7 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=2.2 --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"))
)

2024-10-13 10:51.57: Waiting for resource in pool OCluster
2024-10-13 10:51.58: Waiting for worker…
2024-10-13 10:51.58: Got resource from pool OCluster
Building on doris.caelum.ci.dev
HEAD is now at 7c85236 Avoid `include` of modules
HEAD is now at 41eee82 Avoid `include` of modules

(from ocaml/opam:ubuntu-24.04-ocaml-5.2@sha256:00a95d2fe40951c97439f00b71e114dc26d6721b1faf1e26e9da8aca07f041db)
2024-10-13 10:51.59 ---> using "c577517051bc80cb401536b4b355d6b30648471dc940a033f17fb5f9ea79c0cb" from cache

/: (comment ubuntu-24.04-5.2_opam-2.2)

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

/: (env CLICOLOR_FORCE 1)

/: (env OPAMCOLOR always)

/: (workdir /src)

/src: (run (shell "sudo ln -f /usr/bin/opam-2.2 /usr/bin/opam"))
2024-10-13 10:51.59 ---> using "1f42aa99593fa3a98101a950e717557fb7cd48e7bf1874084a7e300d7b4d86b7" 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] synchronised from file:///home/opam/opam-repository
2024-10-13 10:51.59 ---> using "c4bd3ad1e8002eec5b7cbc826b33d2ca71f0956b906bb70d116de5780196cabf" from cache

/src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))
Linux 5.15.0-122-generic
The OCaml toplevel, version 5.2.0
2.2.1
2024-10-13 10:51.59 ---> using "8ec0cac14ebb81d34c1b0f13b12231e71f8bfb6cd3ccff55df2e39820d469586" from cache

/src: (workdir /src)

/src: (run (shell "sudo chown opam /src"))
2024-10-13 10:51.59 ---> using "02080343168191dcb832791bf6877f12fbab241d4fc52100103c696a6ddfd394" from cache

/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
           (network host)
           (shell "cd ~/opam-repository && (git cat-file -e b876d7d37014df697368765c088aa86d24dc8b6b || git fetch origin master) && git reset -q --hard b876d7d37014df697368765c088aa86d24dc8b6b && git log --no-decorate -n1 --oneline && opam update -u"))
From https://github.com/ocaml/opam-repository
 * branch                  master     -> FETCH_HEAD
   75006f8c5e..ba44ffed3b  master     -> origin/master
b876d7d370 Merge pull request #26641 from polytypic/release-backoff-0.1.1

<><> Updating package repositories ><><><><><><><><><><><><><><><><><><><><><><>
[default] synchronised from 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.
# Run eval $(opam env) to update the current shell environment
2024-10-13 10:51.59 ---> using "6be9c50d995cb9cb2a95288b4c72cd9fb46a4307ca95ab4948be8e17da4da90b" from cache

/src: (copy (src multicore-bench.opam) (dst ./))
2024-10-13 10:51.59 ---> using "63a23f9779013015c5b8be475a8396cf097f5ca2315aa88e3172cd3f85839b78" 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)
2024-10-13 10:51.59 ---> using "4e7ee8b86480c0de1676a811da6463fb2f6cb28d27d6c2c0af945650f694c220" from cache

/src: (env DEPS "astring.0.8.5 backoff.0.1.1 base-bigarray.base base-domains.base base-nnp.base base-threads.base base-unix.base camlp-streams.5.0.1 cmdliner.1.3.0 cppo.1.7.0 csexp.1.5.2 domain-local-await.1.0.1 domain_shims.0.1.0 dune.3.16.0 fmt.0.9.0 host-arch-x86_64.1 host-system-other.1 logs.0.7.0 mdx.2.4.1 mtime.2.1.0 multicore-magic.2.3.0 ocaml.5.2.0 ocaml-base-compiler.5.2.0 ocaml-config.3 ocaml-options-vanilla.1 ocaml-version.3.6.9 ocamlbuild.0.15.0 ocamlfind.1.9.6 re.1.12.0 result.1.5 seq.base thread-table.1.0.0 topkg.1.0.7 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=2.2 --depext-only -y multicore-bench.dev $DEPS"))
+ /usr/bin/sudo "apt-get" "update"
- Get:1 http://security.ubuntu.com/ubuntu noble-security InRelease [126 kB]
- Hit:2 http://archive.ubuntu.com/ubuntu noble InRelease
- Get:3 http://archive.ubuntu.com/ubuntu noble-updates InRelease [126 kB]
- Get:4 http://archive.ubuntu.com/ubuntu noble-backports InRelease [126 kB]
- Get:5 http://security.ubuntu.com/ubuntu noble-security/universe amd64 Packages [372 kB]
- Get:6 http://archive.ubuntu.com/ubuntu noble-updates/main amd64 Packages [688 kB]
- Get:7 http://security.ubuntu.com/ubuntu noble-security/main amd64 Packages [482 kB]
- Get:8 http://archive.ubuntu.com/ubuntu noble-updates/universe amd64 Packages [514 kB]
- Get:9 http://archive.ubuntu.com/ubuntu noble-backports/universe amd64 Packages [11.8 kB]
- Fetched 2446 kB in 1s (2186 kB/s)
- Reading package lists...

<><> Synchronising pinned packages ><><><><><><><><><><><><><><><><><><><><><><>
[multicore-bench.dev] synchronised (no changes)

[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-base-compiler is already installed (current version is 5.2.0).
[NOTE] Package ocaml is already installed (current version is 5.2.0).
[NOTE] Package host-system-other is already installed (current version is 1).
[NOTE] Package host-arch-x86_64 is already installed (current version is 1).
[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-domains is already installed (current version is base).
[NOTE] Package base-bigarray is already installed (current version is base).
2024-10-13 10:51.59 ---> using "ec5064e20edfa4c3839c47e51d3a8c3694e0d24cd1ea5529f8cbe5e0f6a3e582" 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 3).
[NOTE] Package ocaml-base-compiler is already installed (current version is 5.2.0).
[NOTE] Package ocaml is already installed (current version is 5.2.0).
[NOTE] Package host-system-other is already installed (current version is 1).
[NOTE] Package host-arch-x86_64 is already installed (current version is 1).
[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-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 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               1.7.0
  - install csexp              1.5.2
  - install domain-local-await 1.0.1
  - install domain_shims       0.1.0
  - install dune               3.16.0
  - install fmt                0.9.0
  - install logs               0.7.0
  - install mdx                2.4.1
  - install mtime              2.1.0
  - install multicore-magic    2.3.0
  - install ocaml-version      3.6.9
  - install ocamlbuild         0.15.0
  - install ocamlfind          1.9.6
  - install re                 1.12.0
  - install result             1.5
  - install seq                base
  - install thread-table       1.0.0
  - install topkg              1.0.7
  - install yojson             2.2.2

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved camlp-streams.5.0.1  (cached)
-> retrieved backoff.0.1.1  (cached)
-> retrieved astring.0.8.5  (cached)
-> retrieved cppo.1.7.0  (cached)
-> retrieved cmdliner.1.3.0  (cached)
-> retrieved csexp.1.5.2  (cached)
-> retrieved domain-local-await.1.0.1  (cached)
-> retrieved domain_shims.0.1.0  (cached)
-> retrieved fmt.0.9.0  (cached)
-> retrieved logs.0.7.0  (cached)
-> retrieved mtime.2.1.0  (cached)
-> retrieved mdx.2.4.1  (cached)
-> retrieved multicore-magic.2.3.0  (cached)
-> retrieved ocaml-version.3.6.9  (cached)
-> retrieved ocamlbuild.0.15.0  (cached)
-> retrieved ocamlfind.1.9.6  (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.1.0.7  (cached)
-> retrieved yojson.2.2.2  (cached)
-> retrieved dune.3.16.0  (cached)
-> installed cmdliner.1.3.0
-> installed ocamlfind.1.9.6
-> installed ocamlbuild.0.15.0
-> installed topkg.1.0.7
-> installed mtime.2.1.0
-> installed fmt.0.9.0
-> installed astring.0.8.5
-> installed logs.0.7.0
-> installed dune.3.16.0
-> installed domain_shims.0.1.0
-> installed backoff.0.1.1
-> installed csexp.1.5.2
-> installed result.1.5
-> installed thread-table.1.0.0
-> installed ocaml-version.3.6.9
-> installed camlp-streams.5.0.1
-> installed multicore-magic.2.3.0
-> installed domain-local-await.1.0.1
-> installed re.1.12.0
-> installed cppo.1.7.0
-> installed yojson.2.2.2
-> installed mdx.2.4.1
Done.
# Run eval $(opam env) to update the current shell environment
2024-10-13 10:51.59 ---> using "2c30bcd323a35e0c4eec456aaada686896724f6165bf46682e6c8b12a16ecad9" from cache

/src: (copy (src .) (dst /src))
2024-10-13 10:51.59 ---> saved as "a1f3b9ee72249bca9e98f4a7d9eb005d87052d3ed90bd37cdd33c4ecea9dcaaa"

/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:
    150.60 M/s
  ops over time/get:
    644.34 M/s
  ops over time/incr:
    171.63 M/s
  ops over time/push & pop:
    53.53 M/s
  ops over time/swap:
    113.15 M/s
  ops over time/xchg int:
    163.72 M/s
  time per op/cas int:
    6.64 ns
  time per op/get:
    1.55 ns
  time per op/incr:
    5.83 ns
  time per op/push & pop:
    18.68 ns
  time per op/swap:
    8.84 ns
  time per op/xchg int:
    6.11 ns
Atomic incr:
  ops over time/CAS, 1 domains:
    157.98 M/s
  ops over time/CAS, 2 domains:
    59.53 M/s
  ops over time/CAS, 4 domains:
    50.70 M/s
  ops over time/CAS, 8 domains:
    43.52 M/s
  ops over time/CAS with backoff, 1 domains:
    156.30 M/s
  ops over time/CAS with backoff, 2 domains:
    73.80 M/s
  ops over time/CAS with backoff, 4 domains:
    40.87 M/s
  ops over time/CAS with backoff, 8 domains:
    32.14 M/s
  ops over time/Incr, 1 domains:
    175.31 M/s
  ops over time/Incr, 2 domains:
    83.63 M/s
  ops over time/Incr, 4 domains:
    71.95 M/s
  ops over time/Incr, 8 domains:
    65.73 M/s
  time per op/CAS, 1 domains:
    6.33 ns
  time per op/CAS, 2 domains:
    33.60 ns
  time per op/CAS, 4 domains:
    78.89 ns
  time per op/CAS, 8 domains:
    183.84 ns
  time per op/CAS with backoff, 1 domains:
    6.40 ns
  time per op/CAS with backoff, 2 domains:
    27.10 ns
  time per op/CAS with backoff, 4 domains:
    97.87 ns
  time per op/CAS with backoff, 8 domains:
    248.94 ns
  time per op/Incr, 1 domains:
    5.70 ns
  time per op/Incr, 2 domains:
    23.91 ns
  time per op/Incr, 4 domains:
    55.62 ns
  time per op/Incr, 8 domains:
    121.71 ns
Bounded_q:
  messages over time/1 adder, 1 taker:
    3.19 M/s
  messages over time/1 adder, 2 takers:
    1.84 M/s
  messages over time/1 adder, 4 takers:
    0.85 M/s
  messages over time/2 adders, 1 taker:
    2.01 M/s
  messages over time/2 adders, 2 takers:
    1.58 M/s
  messages over time/2 adders, 4 takers:
    0.83 M/s
  messages over time/4 adders, 1 taker:
    1.52 M/s
  messages over time/4 adders, 2 takers:
    2.56 M/s
  messages over time/4 adders, 4 takers:
    1.65 M/s
  messages over time/one domain:
    11.99 M/s
  time per message/1 adder, 1 taker:
    627.50 ns
  time per message/1 adder, 2 takers:
    1634.59 ns
  time per message/1 adder, 4 takers:
    5864.60 ns
  time per message/2 adders, 1 taker:
    1496.25 ns
  time per message/2 adders, 2 takers:
    2531.07 ns
  time per message/2 adders, 4 takers:
    7188.09 ns
  time per message/4 adders, 1 taker:
    3283.16 ns
  time per message/4 adders, 2 takers:
    2347.74 ns
  time per message/4 adders, 4 takers:
    4843.16 ns
  time per message/one domain:
    83.38 ns
Hashtbl:
  operations over time/1 worker, 10% reads:
    16.20 M/s
  operations over time/1 worker, 50% reads:
    16.06 M/s
  operations over time/1 worker, 90% reads:
    19.60 M/s
  operations over time/2 workers, 10% reads:
    2.36 M/s
  operations over time/2 workers, 50% reads:
    7.26 M/s
  operations over time/2 workers, 90% reads:
    4.55 M/s
  operations over time/4 workers, 10% reads:
    1.83 M/s
  operations over time/4 workers, 50% reads:
    1.87 M/s
  operations over time/4 workers, 90% reads:
    3.55 M/s
  operations over time/8 workers, 10% reads:
    1.67 M/s
  operations over time/8 workers, 50% reads:
    2.18 M/s
  operations over time/8 workers, 90% reads:
    3.99 M/s
  operations over time/one domain, 10% reads:
    24.20 M/s
  operations over time/one domain, 50% reads:
    24.93 M/s
  operations over time/one domain, 90% reads:
    35.56 M/s
  time per operation/1 worker, 10% reads:
    61.74 ns
  time per operation/1 worker, 50% reads:
    62.26 ns
  time per operation/1 worker, 90% reads:
    51.02 ns
  time per operation/2 workers, 10% reads:
    846.45 ns
  time per operation/2 workers, 50% reads:
    275.60 ns
  time per operation/2 workers, 90% reads:
    439.41 ns
  time per operation/4 workers, 10% reads:
    2183.70 ns
  time per operation/4 workers, 50% reads:
    2135.85 ns
  time per operation/4 workers, 90% reads:
    1127.56 ns
  time per operation/8 workers, 10% reads:
    4798.06 ns
  time per operation/8 workers, 50% reads:
    3676.92 ns
  time per operation/8 workers, 90% reads:
    2004.38 ns
  time per operation/one domain, 10% reads:
    41.32 ns
  time per operation/one domain, 50% reads:
    40.12 ns
  time per operation/one domain, 90% reads:
    28.12 ns
Queue:
  messages over time/one domain:
    33.22 M/s
  time per message/one domain:
    30.11 ns
Ref with Mutex:
  ops over time/cas int:
    31.95 M/s
  ops over time/get:
    39.83 M/s
  ops over time/incr:
    36.45 M/s
  ops over time/push & pop:
    24.72 M/s
  ops over time/swap:
    29.63 M/s
  ops over time/xchg int:
    32.11 M/s
  time per op/cas int:
    31.30 ns
  time per op/get:
    25.11 ns
  time per op/incr:
    27.44 ns
  time per op/push & pop:
    40.45 ns
  time per op/swap:
    33.75 ns
  time per op/xchg int:
    31.15 ns
Ref with [@poll error]:
  ops over time/cas int:
    158.15 M/s
  ops over time/get:
    657.33 M/s
  ops over time/incr:
    311.04 M/s
  ops over time/push & pop:
    55.72 M/s
  ops over time/swap:
    110.19 M/s
  ops over time/xchg int:
    157.95 M/s
  time per op/cas int:
    6.32 ns
  time per op/get:
    1.52 ns
  time per op/incr:
    3.22 ns
  time per op/push & pop:
    17.95 ns
  time per op/swap:
    9.08 ns
  time per op/xchg int:
    6.33 ns
Stack:
  messages over time/one domain:
    41.71 M/s
  time per message/one domain:
    23.98 ns
Unix:
  blocking reads over time/1 worker:
    1.15 M/s
  blocking reads over time/2 workers:
    2.30 M/s
  blocking reads over time/4 workers:
    4.67 M/s
  time per blocking read/1 worker:
    866.48 ns
  time per blocking read/2 workers:
    870.19 ns
  time per blocking read/4 workers:
    857.23 ns
2024-10-13 10:52.11 ---> saved as "22a1d7d2014053b3d56f9005144ea2b704826e733feb9d4f4c3cfc49a188745e"
Job succeeded
2024-10-13 10:52.12: Job succeeded