ubuntu-24.04-5.3_opam-2.3

2025-05-17 15:44.17: New job: test ocaml-multicore/multicore-bench https://github.com/ocaml-multicore/multicore-bench.git#refs/heads/main (da98794e7fc55064aafbd26aceee7f3316a4ab2b) (linux-x86_64:ubuntu-24.04-5.3_opam-2.3)
Base: ocaml/opam:ubuntu-24.04-ocaml-5.3@sha256:b6ac059a3005d298c3948e374b5fba1871ea7c1979a96018feb417d440b27ef0
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 da98794e
cat > Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:ubuntu-24.04-ocaml-5.3@sha256:b6ac059a3005d298c3948e374b5fba1871ea7c1979a96018feb417d440b27ef0
# ubuntu-24.04-5.3_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-domains.base base-effects.base base-nnp.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.5.3.0 ocaml-base-compiler.5.3.0 ocaml-compiler.5.3.0 ocaml-config.3 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


2025-05-17 15:44.17: Using cache hint "ocaml-multicore/multicore-bench-ocaml/opam:ubuntu-24.04-ocaml-5.3@sha256:b6ac059a3005d298c3948e374b5fba1871ea7c1979a96018feb417d440b27ef0-ubuntu-24.04-5.3_opam-2.3-fdb66d4783b2d787160404816b7d94dd"
2025-05-17 15:44.17: Using OBuilder spec:
((from ocaml/opam:ubuntu-24.04-ocaml-5.3@sha256:b6ac059a3005d298c3948e374b5fba1871ea7c1979a96018feb417d440b27ef0)
(comment ubuntu-24.04-5.3_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-domains.base base-effects.base base-nnp.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.5.3.0 ocaml-base-compiler.5.3.0 ocaml-compiler.5.3.0 ocaml-config.3 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"))
)


2025-05-17 15:44.17: Waiting for resource in pool OCluster
2025-05-17 15:44.17: Waiting for worker…
2025-05-17 15:47.00: Got resource from pool OCluster
Building on doris.caelum.ci.dev
HEAD is now at b787022 Avoid `broadcast` in `Bounded_q` benchmark
HEAD is now at da98794 Avoid `broadcast` in `Bounded_q` benchmark


(from ocaml/opam:ubuntu-24.04-ocaml-5.3@sha256:b6ac059a3005d298c3948e374b5fba1871ea7c1979a96018feb417d440b27ef0)
2025-05-17 15:47.01 ---> using "10c823be6d6df8b8b953a1da7016d5c0a852e2e87d76746b4c929b5ce9cf0ea7" from cache


/: (comment ubuntu-24.04-5.3_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"))
2025-05-17 15:47.01 ---> using "7e4e95fbdd960f07cc45e7caadc95ccc19437cf1fa3ac4cf9ffe38fb71ba29a6" 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
2025-05-17 15:47.01 ---> using "165aa512348c81560d0d9826f796b98dc48f4c9a7c0b4e56e3102119a9192813" from cache


/src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))
Linux 5.15.0-134-generic
The OCaml toplevel, version 5.3.0
2.3.0
2025-05-17 15:47.01 ---> using "df15c08d3bd246393f4369064e82160ecd55ec0511fc0edfa706fbdbbf9fc3b6" from cache


/src: (workdir /src)


/src: (run (shell "sudo chown opam /src"))
2025-05-17 15:47.01 ---> using "b48a5f00b86917e79b6c3f17793c62a1c228f36dd2ae72f3747baabaf72144bf" 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"))
35eb2f107a Merge pull request #27838 from maiste/release-dune-3.18.2


<><> Updating package repositories ><><><><><><><><><><><><><><><><><><><><><><>
[default] no changes 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)
2025-05-17 15:47.01 ---> using "c4f85c431f9bc7a02d33f324f00cdd94ed49c874555e31fe7d3b2a91544c4940" from cache


/src: (copy (src multicore-bench.opam) (dst ./))
2025-05-17 15:47.01 ---> using "62c725c2b613c8b0be9210e653bd19ee94acdbe3aef546e8a758312bb4e20f47" 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)
2025-05-17 15:47.01 ---> using "03242172ae61bf0735cd41e6a60ac906c04a33c4b35392c39182716b5c4ed3fd" from cache


/src: (run (network host)
(shell "echo '(lang dune 3.0)' > './dune-project'"))
2025-05-17 15:47.01 ---> using "2cce9051e445efb953ba029d4337e072057775a6ab7e292128a64cb603a783cc" from cache


/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.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.5.3.0 ocaml-base-compiler.5.3.0 ocaml-compiler.5.3.0 ocaml-config.3 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://archive.ubuntu.com/ubuntu noble InRelease
- Get:2 http://archive.ubuntu.com/ubuntu noble-updates InRelease [126 kB]
- Get:3 http://archive.ubuntu.com/ubuntu noble-backports InRelease [126 kB]
- Get:4 http://security.ubuntu.com/ubuntu noble-security InRelease [126 kB]
- Get:5 http://archive.ubuntu.com/ubuntu noble-updates/restricted amd64 Packages [1431 kB]
- Get:6 http://archive.ubuntu.com/ubuntu noble-updates/multiverse amd64 Packages [26.7 kB]
- Get:7 http://archive.ubuntu.com/ubuntu noble-updates/main amd64 Packages [1382 kB]
- Get:8 http://archive.ubuntu.com/ubuntu noble-updates/universe amd64 Packages [1380 kB]
- Get:9 http://archive.ubuntu.com/ubuntu noble-backports/main amd64 Packages [48.0 kB]
- Get:10 http://archive.ubuntu.com/ubuntu noble-backports/universe amd64 Packages [31.8 kB]
- Get:11 http://security.ubuntu.com/ubuntu noble-security/restricted amd64 Packages [1371 kB]
- Get:12 http://security.ubuntu.com/ubuntu noble-security/multiverse amd64 Packages [22.1 kB]
- Get:13 http://security.ubuntu.com/ubuntu noble-security/universe amd64 Packages [1082 kB]
- Get:14 http://security.ubuntu.com/ubuntu noble-security/main amd64 Packages [1055 kB]
- Fetched 8208 kB in 1s (6523 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 5.3.0).
[NOTE] Package ocaml-base-compiler is already installed (current version is 5.3.0).
[NOTE] Package ocaml is already installed (current version is 5.3.0).
[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).
2025-05-17 15:47.01 ---> using "f34ca455ee009c9923d46a5b172b0d43b3f6209f97dec2254790a70f05d91768" 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-compiler is already installed (current version is 5.3.0).
[NOTE] Package ocaml-base-compiler is already installed (current version is 5.3.0).
[NOTE] Package ocaml is already installed (current version is 5.3.0).
[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 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 backoff.0.1.1  (cached)
-> retrieved astring.0.8.5  (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 mtime.2.1.0  (cached)
-> retrieved multicore-magic.2.3.1  (cached)
-> retrieved mdx.2.5.0  (cached)
-> retrieved ocaml-version.4.0.0  (cached)
-> retrieved ocamlfind.1.9.8  (cached)
-> retrieved ocamlbuild.0.16.1  (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.2.2.2  (cached)
-> retrieved dune.3.18.2  (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.3.18.2
-> installed domain_shims.0.1.0
-> installed csexp.1.5.2
-> installed backoff.0.1.1
-> installed ocaml-version.4.0.0
-> installed thread-table.1.0.0
-> installed result.1.5
-> installed multicore-magic.2.3.1
-> installed camlp-streams.5.0.1
-> installed domain-local-await.1.0.1
-> installed re.1.12.0
-> installed cppo.1.8.0
-> installed yojson.2.2.2
-> installed mdx.2.5.0
Done.
# To update the current shell environment, run: eval $(opam env)
2025-05-17 15:47.01 ---> using "5a7a54f018086747c538bb54de2c919da61ac903ccafc3b8f684d783eadfa23e" from cache


/src: (copy (src .) (dst /src))
2025-05-17 15:47.01 ---> using "50c82ced9884308370852c9a0f2cbac610bab7ffb15cc60bc7ae0ea88e51f4ab" from cache


/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:
148.74 M/s
ops over time/get:
637.30 M/s
ops over time/incr:
169.67 M/s
ops over time/push & pop:
54.66 M/s
ops over time/swap:
110.18 M/s
ops over time/xchg int:
156.25 M/s
time per op/cas int:
6.72 ns
time per op/get:
1.57 ns
time per op/incr:
5.89 ns
time per op/push & pop:
18.30 ns
time per op/swap:
9.08 ns
time per op/xchg int:
6.40 ns
Atomic incr:
ops over time/CAS, 1 domains:
145.63 M/s
ops over time/CAS, 2 domains:
73.86 M/s
ops over time/CAS, 4 domains:
57.16 M/s
ops over time/CAS, 8 domains:
43.23 M/s
ops over time/CAS with backoff, 1 domains:
145.48 M/s
ops over time/CAS with backoff, 2 domains:
63.79 M/s
ops over time/CAS with backoff, 4 domains:
45.27 M/s
ops over time/CAS with backoff, 8 domains:
35.39 M/s
ops over time/Incr, 1 domains:
161.96 M/s
ops over time/Incr, 2 domains:
117.10 M/s
ops over time/Incr, 4 domains:
118.22 M/s
ops over time/Incr, 8 domains:
100.00 M/s
time per op/CAS, 1 domains:
6.87 ns
time per op/CAS, 2 domains:
27.08 ns
time per op/CAS, 4 domains:
69.99 ns
time per op/CAS, 8 domains:
185.07 ns
time per op/CAS with backoff, 1 domains:
6.87 ns
time per op/CAS with backoff, 2 domains:
31.35 ns
time per op/CAS with backoff, 4 domains:
88.35 ns
time per op/CAS with backoff, 8 domains:
226.10 ns
time per op/Incr, 1 domains:
6.17 ns
time per op/Incr, 2 domains:
17.08 ns
time per op/Incr, 4 domains:
33.84 ns
time per op/Incr, 8 domains:
80.00 ns
Bounded_q:
messages over time/1 adder, 1 taker:
2.61 M/s
messages over time/1 adder, 2 takers:
1.92 M/s
messages over time/1 adder, 4 takers:
1.59 M/s
messages over time/2 adders, 1 taker:
2.49 M/s
messages over time/2 adders, 2 takers:
2.09 M/s
messages over time/2 adders, 4 takers:
1.31 M/s
messages over time/4 adders, 1 taker:
2.50 M/s
messages over time/4 adders, 2 takers:
2.01 M/s
messages over time/4 adders, 4 takers:
1.20 M/s
messages over time/one domain:
11.32 M/s
time per message/1 adder, 1 taker:
765.42 ns
time per message/1 adder, 2 takers:
1564.42 ns
time per message/1 adder, 4 takers:
3144.39 ns
time per message/2 adders, 1 taker:
1204.66 ns
time per message/2 adders, 2 takers:
1912.27 ns
time per message/2 adders, 4 takers:
4594.46 ns
time per message/4 adders, 1 taker:
2002.20 ns
time per message/4 adders, 2 takers:
2983.03 ns
time per message/4 adders, 4 takers:
6664.18 ns
time per message/one domain:
88.30 ns
Hashtbl:
operations over time/1 worker, 10% reads:
15.93 M/s
operations over time/1 worker, 50% reads:
15.65 M/s
operations over time/1 worker, 90% reads:
12.22 M/s
operations over time/2 workers, 10% reads:
1.76 M/s
operations over time/2 workers, 50% reads:
1.91 M/s
operations over time/2 workers, 90% reads:
4.10 M/s
operations over time/4 workers, 10% reads:
1.09 M/s
operations over time/4 workers, 50% reads:
2.05 M/s
operations over time/4 workers, 90% reads:
3.88 M/s
operations over time/8 workers, 10% reads:
1.20 M/s
operations over time/8 workers, 50% reads:
1.86 M/s
operations over time/8 workers, 90% reads:
3.80 M/s
operations over time/one domain, 10% reads:
23.63 M/s
operations over time/one domain, 50% reads:
24.24 M/s
operations over time/one domain, 90% reads:
32.46 M/s
time per operation/1 worker, 10% reads:
62.77 ns
time per operation/1 worker, 50% reads:
63.91 ns
time per operation/1 worker, 90% reads:
81.85 ns
time per operation/2 workers, 10% reads:
1139.59 ns
time per operation/2 workers, 50% reads:
1046.33 ns
time per operation/2 workers, 90% reads:
487.85 ns
time per operation/4 workers, 10% reads:
3682.18 ns
time per operation/4 workers, 50% reads:
1955.61 ns
time per operation/4 workers, 90% reads:
1030.19 ns
time per operation/8 workers, 10% reads:
6651.61 ns
time per operation/8 workers, 50% reads:
4306.82 ns
time per operation/8 workers, 90% reads:
2103.25 ns
time per operation/one domain, 10% reads:
42.32 ns
time per operation/one domain, 50% reads:
41.26 ns
time per operation/one domain, 90% reads:
30.81 ns
Queue:
messages over time/one domain:
25.76 M/s
time per message/one domain:
38.82 ns
Ref with Mutex:
ops over time/cas int:
28.86 M/s
ops over time/get:
38.60 M/s
ops over time/incr:
35.15 M/s
ops over time/push & pop:
24.37 M/s
ops over time/swap:
28.14 M/s
ops over time/xchg int:
29.17 M/s
time per op/cas int:
34.65 ns
time per op/get:
25.90 ns
time per op/incr:
28.45 ns
time per op/push & pop:
41.04 ns
time per op/swap:
35.53 ns
time per op/xchg int:
34.28 ns
Ref with [@poll error]:
ops over time/cas int:
132.70 M/s
ops over time/get:
586.14 M/s
ops over time/incr:
277.92 M/s
ops over time/push & pop:
50.18 M/s
ops over time/swap:
95.20 M/s
ops over time/xchg int:
149.34 M/s
time per op/cas int:
7.54 ns
time per op/get:
1.71 ns
time per op/incr:
3.60 ns
time per op/push & pop:
19.93 ns
time per op/swap:
10.50 ns
time per op/xchg int:
6.70 ns
Stack:
messages over time/one domain:
39.71 M/s
time per message/one domain:
25.18 ns
Unix:
blocking reads over time/1 worker:
1.15 M/s
blocking reads over time/2 workers:
2.28 M/s
blocking reads over time/4 workers:
4.52 M/s
time per blocking read/1 worker:
866.46 ns
time per blocking read/2 workers:
877.70 ns
time per blocking read/4 workers:
884.09 ns
2025-05-17 15:47.01 ---> using "519da7361ea4f4e7fa075b6188ba6ebf3f976d9cfa1a80486001e1c3fe3f25fb" from cache
Job succeeded
2025-05-17 15:47.02: Job succeeded