Diff of the two buildlogs: -- --- b1/build.log 2025-03-11 01:45:30.356956403 +0000 +++ b2/build.log 2025-03-11 01:48:40.204501346 +0000 @@ -1,6 +1,6 @@ I: pbuilder: network access will be disabled during build -I: Current time: Sun Apr 12 20:07:32 -12 2026 -I: pbuilder-time-stamp: 1776067652 +I: Current time: Tue Mar 11 15:45:33 +14 2025 +I: pbuilder-time-stamp: 1741657533 I: Building the build Environment I: extracting base tarball [/var/cache/pbuilder/unstable-reproducible-base.tgz] I: copying local configuration @@ -22,52 +22,84 @@ dpkg-source: info: unpacking ocaml-multicore-bench_0.1.7-1.debian.tar.xz I: Not using root during the build. I: Installing the build-deps -I: user script /srv/workspace/pbuilder/2189601/tmp/hooks/D02_print_environment starting +I: user script /srv/workspace/pbuilder/260984/tmp/hooks/D01_modify_environment starting +debug: Running on ionos11-amd64. +I: Changing host+domainname to test build reproducibility +I: Adding a custom variable just for the fun of it... +I: Changing /bin/sh to bash +'/bin/sh' -> '/bin/bash' +lrwxrwxrwx 1 root root 9 Mar 11 01:45 /bin/sh -> /bin/bash +I: Setting pbuilder2's login shell to /bin/bash +I: Setting pbuilder2's GECOS to second user,second room,second work-phone,second home-phone,second other +I: user script /srv/workspace/pbuilder/260984/tmp/hooks/D01_modify_environment finished +I: user script /srv/workspace/pbuilder/260984/tmp/hooks/D02_print_environment starting I: set - BUILDDIR='/build/reproducible-path' - BUILDUSERGECOS='first user,first room,first work-phone,first home-phone,first other' - BUILDUSERNAME='pbuilder1' - BUILD_ARCH='amd64' - DEBIAN_FRONTEND='noninteractive' - DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=42 ' - DISTRIBUTION='unstable' - HOME='/root' - HOST_ARCH='amd64' + BASH=/bin/sh + BASHOPTS=checkwinsize:cmdhist:complete_fullquote:extquote:force_fignore:globasciiranges:globskipdots:hostcomplete:interactive_comments:patsub_replacement:progcomp:promptvars:sourcepath + BASH_ALIASES=() + BASH_ARGC=() + BASH_ARGV=() + BASH_CMDS=() + BASH_LINENO=([0]="12" [1]="0") + BASH_LOADABLES_PATH=/usr/local/lib/bash:/usr/lib/bash:/opt/local/lib/bash:/usr/pkg/lib/bash:/opt/pkg/lib/bash:. + BASH_SOURCE=([0]="/tmp/hooks/D02_print_environment" [1]="/tmp/hooks/D02_print_environment") + BASH_VERSINFO=([0]="5" [1]="2" [2]="37" [3]="1" [4]="release" [5]="x86_64-pc-linux-gnu") + BASH_VERSION='5.2.37(1)-release' + BUILDDIR=/build/reproducible-path + BUILDUSERGECOS='second user,second room,second work-phone,second home-phone,second other' + BUILDUSERNAME=pbuilder2 + BUILD_ARCH=amd64 + DEBIAN_FRONTEND=noninteractive + DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=20 ' + DIRSTACK=() + DISTRIBUTION=unstable + EUID=0 + FUNCNAME=([0]="Echo" [1]="main") + GROUPS=() + HOME=/root + HOSTNAME=i-capture-the-hostname + HOSTTYPE=x86_64 + HOST_ARCH=amd64 IFS=' ' - INVOCATION_ID='7c94791d238b4a7c973304205d690d25' - LANG='C' - LANGUAGE='en_US:en' - LC_ALL='C' - MAIL='/var/mail/root' - OPTIND='1' - PATH='/usr/sbin:/usr/bin:/sbin:/bin:/usr/games' - PBCURRENTCOMMANDLINEOPERATION='build' - PBUILDER_OPERATION='build' - PBUILDER_PKGDATADIR='/usr/share/pbuilder' - PBUILDER_PKGLIBDIR='/usr/lib/pbuilder' - PBUILDER_SYSCONFDIR='/etc' - PPID='2189601' - PS1='# ' - PS2='> ' + INVOCATION_ID=c3170afa462e43feb93e65ca89cb28b3 + LANG=C + LANGUAGE=et_EE:et + LC_ALL=C + MACHTYPE=x86_64-pc-linux-gnu + MAIL=/var/mail/root + OPTERR=1 + OPTIND=1 + OSTYPE=linux-gnu + PATH=/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/i/capture/the/path + PBCURRENTCOMMANDLINEOPERATION=build + PBUILDER_OPERATION=build + PBUILDER_PKGDATADIR=/usr/share/pbuilder + PBUILDER_PKGLIBDIR=/usr/lib/pbuilder + PBUILDER_SYSCONFDIR=/etc + PIPESTATUS=([0]="0") + POSIXLY_CORRECT=y + PPID=260984 PS4='+ ' - PWD='/' - SHELL='/bin/bash' - SHLVL='2' - SUDO_COMMAND='/usr/bin/timeout -k 18.1h 18h /usr/bin/ionice -c 3 /usr/bin/nice /usr/sbin/pbuilder --build --configfile /srv/reproducible-results/rbuild-debian/r-b-build.Ti2sUjrF/pbuilderrc_uVPa --distribution unstable --hookdir /etc/pbuilder/first-build-hooks --debbuildopts -b --basetgz /var/cache/pbuilder/unstable-reproducible-base.tgz --buildresult /srv/reproducible-results/rbuild-debian/r-b-build.Ti2sUjrF/b1 --logfile b1/build.log ocaml-multicore-bench_0.1.7-1.dsc' - SUDO_GID='110' - SUDO_UID='105' - SUDO_USER='jenkins' - TERM='unknown' - TZ='/usr/share/zoneinfo/Etc/GMT+12' - USER='root' - _='/usr/bin/systemd-run' - http_proxy='http://213.165.73.152:3128' + PWD=/ + SHELL=/bin/bash + SHELLOPTS=braceexpand:errexit:hashall:interactive-comments:posix + SHLVL=3 + SUDO_COMMAND='/usr/bin/timeout -k 24.1h 24h /usr/bin/ionice -c 3 /usr/bin/nice -n 11 /usr/bin/unshare --uts -- /usr/sbin/pbuilder --build --configfile /srv/reproducible-results/rbuild-debian/r-b-build.Ti2sUjrF/pbuilderrc_Al0u --distribution unstable --hookdir /etc/pbuilder/rebuild-hooks --debbuildopts -b --basetgz /var/cache/pbuilder/unstable-reproducible-base.tgz --buildresult /srv/reproducible-results/rbuild-debian/r-b-build.Ti2sUjrF/b2 --logfile b2/build.log ocaml-multicore-bench_0.1.7-1.dsc' + SUDO_GID=111 + SUDO_UID=106 + SUDO_USER=jenkins + TERM=unknown + TZ=/usr/share/zoneinfo/Etc/GMT-14 + UID=0 + USER=root + _='I: set' + http_proxy=http://46.16.76.132:3128 I: uname -a - Linux ionos5-amd64 6.12.12+bpo-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.12.12-1~bpo12+1 (2025-02-23) x86_64 GNU/Linux + Linux i-capture-the-hostname 6.1.0-31-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.128-1 (2025-02-07) x86_64 GNU/Linux I: ls -l /bin - lrwxrwxrwx 1 root root 7 Mar 4 2025 /bin -> usr/bin -I: user script /srv/workspace/pbuilder/2189601/tmp/hooks/D02_print_environment finished + lrwxrwxrwx 1 root root 7 Mar 4 11:20 /bin -> usr/bin +I: user script /srv/workspace/pbuilder/260984/tmp/hooks/D02_print_environment finished -> Attempting to satisfy build-dependencies -> Creating pbuilder-satisfydepends-dummy package Package: pbuilder-satisfydepends-dummy @@ -324,7 +356,7 @@ Get: 106 http://deb.debian.org/debian unstable/main amd64 libmulticore-magic-ocaml amd64 2.3.1-2 [4108 B] Get: 107 http://deb.debian.org/debian unstable/main amd64 libmulticore-magic-ocaml-dev amd64 2.3.1-2 [133 kB] Get: 108 http://deb.debian.org/debian unstable/main amd64 ocaml-dune amd64 3.17.2-1 [4834 kB] -Fetched 212 MB in 5s (42.3 MB/s) +Fetched 212 MB in 9s (22.5 MB/s) Preconfiguring packages ... Selecting previously unselected package sensible-utils. (Reading database ... (Reading database ... 5% (Reading database ... 10% (Reading database ... 15% (Reading database ... 20% (Reading database ... 25% (Reading database ... 30% (Reading database ... 35% (Reading database ... 40% (Reading database ... 45% (Reading database ... 50% (Reading database ... 55% (Reading database ... 60% (Reading database ... 65% (Reading database ... 70% (Reading database ... 75% (Reading database ... 80% (Reading database ... 85% (Reading database ... 90% (Reading database ... 95% (Reading database ... 100% (Reading database ... 19783 files and directories currently installed.) @@ -771,7 +803,11 @@ Building tag database... -> Finished parsing the build-deps I: Building the package -I: Running cd /build/reproducible-path/ocaml-multicore-bench-0.1.7/ && env PATH="/usr/sbin:/usr/bin:/sbin:/bin:/usr/games" HOME="/nonexistent/first-build" dpkg-buildpackage -us -uc -b && env PATH="/usr/sbin:/usr/bin:/sbin:/bin:/usr/games" HOME="/nonexistent/first-build" dpkg-genchanges -S > ../ocaml-multicore-bench_0.1.7-1_source.changes +I: user script /srv/workspace/pbuilder/260984/tmp/hooks/A99_set_merged_usr starting +Not re-configuring usrmerge for unstable +I: user script /srv/workspace/pbuilder/260984/tmp/hooks/A99_set_merged_usr finished +hostname: Name or service not known +I: Running cd /build/reproducible-path/ocaml-multicore-bench-0.1.7/ && env PATH="/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/i/capture/the/path" HOME="/nonexistent/second-build" dpkg-buildpackage -us -uc -b && env PATH="/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/i/capture/the/path" HOME="/nonexistent/second-build" dpkg-genchanges -S > ../ocaml-multicore-bench_0.1.7-1_source.changes dpkg-buildpackage: info: source package ocaml-multicore-bench dpkg-buildpackage: info: source version 0.1.7-1 dpkg-buildpackage: info: source distribution unstable @@ -792,259 +828,259 @@ dh_ocamlinit -O--buildsystem=ocaml_dune dh_auto_configure -O--buildsystem=ocaml_dune dh_auto_build -O--buildsystem=ocaml_dune - dune build -j 42 -p multicore-bench + dune build -j 20 -p multicore-bench dh_auto_test -O--buildsystem=ocaml_dune - dune runtest -j 42 -p multicore-bench + dune runtest -j 20 -p multicore-bench (cd _build/default/bench && ./main.exe -brief) Atomic: ops over time/cas int: - 96.14 M/s + 41.42 M/s ops over time/get: - 448.19 M/s + 372.74 M/s ops over time/incr: - 110.97 M/s + 45.66 M/s ops over time/push & pop: - 52.52 M/s + 25.40 M/s ops over time/swap: - 66.37 M/s + 26.53 M/s ops over time/xchg int: - 84.76 M/s + 43.69 M/s time per op/cas int: - 10.40 ns + 24.14 ns time per op/get: - 2.23 ns + 2.68 ns time per op/incr: - 9.01 ns + 21.90 ns time per op/push & pop: - 19.04 ns + 39.37 ns time per op/swap: - 15.07 ns + 37.69 ns time per op/xchg int: - 11.80 ns + 22.89 ns Atomic incr: ops over time/CAS, 1 domains: - 79.48 M/s + 45.07 M/s ops over time/CAS, 2 domains: - 17.28 M/s + 11.09 M/s ops over time/CAS, 4 domains: - 25.47 M/s + 4.21 M/s ops over time/CAS, 8 domains: - 22.59 M/s + 5.81 M/s ops over time/CAS with backoff, 1 domains: - 80.54 M/s + 43.30 M/s ops over time/CAS with backoff, 2 domains: - 72.54 M/s + 23.95 M/s ops over time/CAS with backoff, 4 domains: - 24.83 M/s + 10.78 M/s ops over time/CAS with backoff, 8 domains: - 19.44 M/s + 8.16 M/s ops over time/Incr, 1 domains: - 109.31 M/s + 47.70 M/s ops over time/Incr, 2 domains: - 57.85 M/s + 16.78 M/s ops over time/Incr, 4 domains: - 56.31 M/s + 9.97 M/s ops over time/Incr, 8 domains: - 60.77 M/s + 13.42 M/s time per op/CAS, 1 domains: - 12.58 ns + 22.19 ns time per op/CAS, 2 domains: - 115.73 ns + 180.32 ns time per op/CAS, 4 domains: - 157.04 ns + 950.92 ns time per op/CAS, 8 domains: - 354.14 ns + 1377.46 ns time per op/CAS with backoff, 1 domains: - 12.42 ns + 23.10 ns time per op/CAS with backoff, 2 domains: - 27.57 ns + 83.51 ns time per op/CAS with backoff, 4 domains: - 161.08 ns + 371.04 ns time per op/CAS with backoff, 8 domains: - 411.51 ns + 980.73 ns time per op/Incr, 1 domains: - 9.15 ns + 20.96 ns time per op/Incr, 2 domains: - 34.57 ns + 119.20 ns time per op/Incr, 4 domains: - 71.03 ns + 401.32 ns time per op/Incr, 8 domains: - 131.64 ns + 596.34 ns Bounded_q: messages over time/1 adder, 1 taker: - 3.78 M/s + 1.47 M/s messages over time/1 adder, 2 takers: - 4.67 M/s + 1.98 M/s messages over time/1 adder, 4 takers: - 1.32 M/s + 0.88 M/s messages over time/2 adders, 1 taker: - 5.63 M/s + 2.32 M/s messages over time/2 adders, 2 takers: - 4.04 M/s + 2.06 M/s messages over time/2 adders, 4 takers: - 1.83 M/s + 1.14 M/s messages over time/4 adders, 1 taker: - 3.47 M/s + 2.48 M/s messages over time/4 adders, 2 takers: - 2.20 M/s + 2.18 M/s messages over time/4 adders, 4 takers: - 1.32 M/s + 1.77 M/s messages over time/one domain: - 11.09 M/s + 4.28 M/s time per message/1 adder, 1 taker: - 528.52 ns + 1355.96 ns time per message/1 adder, 2 takers: - 642.78 ns + 1518.82 ns time per message/1 adder, 4 takers: - 3783.45 ns + 5703.89 ns time per message/2 adders, 1 taker: - 533.20 ns + 1292.39 ns time per message/2 adders, 2 takers: - 989.48 ns + 1945.24 ns time per message/2 adders, 4 takers: - 3277.58 ns + 5271.21 ns time per message/4 adders, 1 taker: - 1438.86 ns + 2017.49 ns time per message/4 adders, 2 takers: - 2726.54 ns + 2754.49 ns time per message/4 adders, 4 takers: - 6074.35 ns + 4527.12 ns time per message/one domain: - 90.16 ns + 233.85 ns Hashtbl: operations over time/1 worker, 10% reads: - 13.80 M/s + 6.02 M/s operations over time/1 worker, 50% reads: - 13.65 M/s + 7.83 M/s operations over time/1 worker, 90% reads: - 14.30 M/s + 3.04 M/s operations over time/2 workers, 10% reads: - 4.72 M/s + 3.79 M/s operations over time/2 workers, 50% reads: - 3.39 M/s + 1.67 M/s operations over time/2 workers, 90% reads: - 6.22 M/s + 2.34 M/s operations over time/4 workers, 10% reads: - 4.77 M/s + 1.53 M/s operations over time/4 workers, 50% reads: - 5.46 M/s + 1.58 M/s operations over time/4 workers, 90% reads: - 4.45 M/s + 3.61 M/s operations over time/8 workers, 10% reads: - 1.65 M/s + 0.75 M/s operations over time/8 workers, 50% reads: - 1.82 M/s + 0.82 M/s operations over time/8 workers, 90% reads: - 2.72 M/s + 1.94 M/s operations over time/one domain, 10% reads: - 21.49 M/s + 13.91 M/s operations over time/one domain, 50% reads: - 20.66 M/s + 14.55 M/s operations over time/one domain, 90% reads: - 24.41 M/s + 16.80 M/s time per operation/1 worker, 10% reads: - 72.44 ns + 166.15 ns time per operation/1 worker, 50% reads: - 73.28 ns + 127.65 ns time per operation/1 worker, 90% reads: - 69.93 ns + 329.30 ns time per operation/2 workers, 10% reads: - 423.66 ns + 527.90 ns time per operation/2 workers, 50% reads: - 589.12 ns + 1200.32 ns time per operation/2 workers, 90% reads: - 321.32 ns + 853.35 ns time per operation/4 workers, 10% reads: - 839.00 ns + 2619.69 ns time per operation/4 workers, 50% reads: - 733.01 ns + 2535.05 ns time per operation/4 workers, 90% reads: - 898.50 ns + 1108.25 ns time per operation/8 workers, 10% reads: - 4849.77 ns + 10689.18 ns time per operation/8 workers, 50% reads: - 4390.99 ns + 9794.98 ns time per operation/8 workers, 90% reads: - 2942.74 ns + 4113.74 ns time per operation/one domain, 10% reads: - 46.53 ns + 71.88 ns time per operation/one domain, 50% reads: - 48.40 ns + 68.74 ns time per operation/one domain, 90% reads: - 40.96 ns + 59.54 ns Queue: messages over time/one domain: - 34.08 M/s + 19.35 M/s time per message/one domain: - 29.34 ns + 51.69 ns Ref with Mutex: ops over time/cas int: - 29.36 M/s + 12.25 M/s ops over time/get: - 31.60 M/s + 12.20 M/s ops over time/incr: - 31.33 M/s + 13.25 M/s ops over time/push & pop: - 25.49 M/s + 8.38 M/s ops over time/swap: - 27.26 M/s + 11.45 M/s ops over time/xchg int: - 29.28 M/s + 12.44 M/s time per op/cas int: - 34.06 ns + 81.60 ns time per op/get: - 31.65 ns + 81.95 ns time per op/incr: - 31.92 ns + 75.48 ns time per op/push & pop: - 39.24 ns + 119.28 ns time per op/swap: - 36.68 ns + 87.31 ns time per op/xchg int: - 34.15 ns + 80.36 ns Ref with [@poll error]: ops over time/cas int: - 158.98 M/s + 91.13 M/s ops over time/get: - 524.89 M/s + 349.70 M/s ops over time/incr: - 361.61 M/s + 268.34 M/s ops over time/push & pop: - 69.12 M/s + 28.22 M/s ops over time/swap: - 105.20 M/s + 37.46 M/s ops over time/xchg int: - 174.39 M/s + 93.22 M/s time per op/cas int: - 6.29 ns + 10.97 ns time per op/get: - 1.91 ns + 2.86 ns time per op/incr: - 2.77 ns + 3.73 ns time per op/push & pop: - 14.47 ns + 35.44 ns time per op/swap: - 9.51 ns + 26.70 ns time per op/xchg int: - 5.73 ns + 10.73 ns Stack: messages over time/one domain: - 39.99 M/s + 22.55 M/s time per message/one domain: - 25.00 ns + 44.34 ns Unix: blocking reads over time/1 worker: - 1.22 M/s + 0.34 M/s blocking reads over time/2 workers: - 2.45 M/s + 1.12 M/s blocking reads over time/4 workers: - 4.88 M/s + 2.39 M/s time per blocking read/1 worker: - 818.27 ns + 2934.40 ns time per blocking read/2 workers: - 817.56 ns + 1780.46 ns time per blocking read/4 workers: - 820.35 ns + 1674.32 ns create-stamp debian/debhelper-build-stamp dh_testroot -O--buildsystem=ocaml_dune dh_prep -O--buildsystem=ocaml_dune @@ -1081,12 +1117,14 @@ dpkg-buildpackage: info: binary-only upload (no source included) dpkg-genchanges: info: including full source code in upload I: copying local configuration +I: user script /srv/workspace/pbuilder/260984/tmp/hooks/B01_cleanup starting +I: user script /srv/workspace/pbuilder/260984/tmp/hooks/B01_cleanup finished I: unmounting dev/ptmx filesystem I: unmounting dev/pts filesystem I: unmounting dev/shm filesystem I: unmounting proc filesystem I: unmounting sys filesystem I: cleaning the build env -I: removing directory /srv/workspace/pbuilder/2189601 and its subdirectories -I: Current time: Sun Apr 12 20:08:26 -12 2026 -I: pbuilder-time-stamp: 1776067706 +I: removing directory /srv/workspace/pbuilder/260984 and its subdirectories +I: Current time: Tue Mar 11 15:48:39 +14 2025 +I: pbuilder-time-stamp: 1741657719