Diff of the two buildlogs: -- --- b1/build.log 2025-03-12 21:21:25.682682907 +0000 +++ b2/build.log 2025-03-12 21:26:57.575704677 +0000 @@ -1,6 +1,6 @@ I: pbuilder: network access will be disabled during build -I: Current time: Tue Apr 14 15:43:32 -12 2026 -I: pbuilder-time-stamp: 1776224612 +I: Current time: Thu Mar 13 11:21:28 +14 2025 +I: pbuilder-time-stamp: 1741814488 I: Building the build Environment I: extracting base tarball [/var/cache/pbuilder/trixie-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/330871/tmp/hooks/D02_print_environment starting +I: user script /srv/workspace/pbuilder/3410463/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 12 21:21 /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/3410463/tmp/hooks/D01_modify_environment finished +I: user script /srv/workspace/pbuilder/3410463/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='trixie' - 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=trixie + EUID=0 + FUNCNAME=([0]="Echo" [1]="main") + GROUPS=() + HOME=/root + HOSTNAME=i-capture-the-hostname + HOSTTYPE=x86_64 + HOST_ARCH=amd64 IFS=' ' - INVOCATION_ID='367be55847744928bf744e253046174a' - 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='330871' - PS1='# ' - PS2='> ' + INVOCATION_ID=5d4bfa3062bf45e78dea4fd0424e0a0a + 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=3410463 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.nLQNhcBc/pbuilderrc_mrUJ --distribution trixie --hookdir /etc/pbuilder/first-build-hooks --debbuildopts -b --basetgz /var/cache/pbuilder/trixie-reproducible-base.tgz --buildresult /srv/reproducible-results/rbuild-debian/r-b-build.nLQNhcBc/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.nLQNhcBc/pbuilderrc_Bw3M --distribution trixie --hookdir /etc/pbuilder/rebuild-hooks --debbuildopts -b --basetgz /var/cache/pbuilder/trixie-reproducible-base.tgz --buildresult /srv/reproducible-results/rbuild-debian/r-b-build.nLQNhcBc/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/330871/tmp/hooks/D02_print_environment finished + lrwxrwxrwx 1 root root 7 Mar 4 11:20 /bin -> usr/bin +I: user script /srv/workspace/pbuilder/3410463/tmp/hooks/D02_print_environment finished -> Attempting to satisfy build-dependencies -> Creating pbuilder-satisfydepends-dummy package Package: pbuilder-satisfydepends-dummy @@ -229,7 +261,7 @@ Get: 106 http://deb.debian.org/debian trixie/main amd64 libmulticore-magic-ocaml amd64 2.3.1-2 [4108 B] Get: 107 http://deb.debian.org/debian trixie/main amd64 libmulticore-magic-ocaml-dev amd64 2.3.1-2 [133 kB] Get: 108 http://deb.debian.org/debian trixie/main amd64 ocaml-dune amd64 3.17.2-1 [4834 kB] -Fetched 212 MB in 7s (30.8 MB/s) +Fetched 212 MB in 13s (16.5 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 ... 19800 files and directories currently installed.) @@ -676,7 +708,11 @@ 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/3410463/tmp/hooks/A99_set_merged_usr starting +Not re-configuring usrmerge for trixie +I: user script /srv/workspace/pbuilder/3410463/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 @@ -697,259 +733,259 @@ 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: - 96.23 M/s + 11.68 M/s ops over time/get: - 444.25 M/s + 94.71 M/s ops over time/incr: - 111.02 M/s + 16.56 M/s ops over time/push & pop: - 53.72 M/s + 3.99 M/s ops over time/swap: - 66.66 M/s + 5.58 M/s ops over time/xchg int: - 84.90 M/s + 14.27 M/s time per op/cas int: - 10.39 ns + 85.63 ns time per op/get: - 2.25 ns + 10.56 ns time per op/incr: - 9.01 ns + 60.39 ns time per op/push & pop: - 18.62 ns + 250.60 ns time per op/swap: - 15.00 ns + 179.23 ns time per op/xchg int: - 11.78 ns + 70.08 ns Atomic incr: ops over time/CAS, 1 domains: - 79.52 M/s + 9.80 M/s ops over time/CAS, 2 domains: - 20.33 M/s + 10.01 M/s ops over time/CAS, 4 domains: - 13.90 M/s + 10.13 M/s ops over time/CAS, 8 domains: - 10.70 M/s + 4.48 M/s ops over time/CAS with backoff, 1 domains: - 80.55 M/s + 12.28 M/s ops over time/CAS with backoff, 2 domains: - 72.19 M/s + 12.98 M/s ops over time/CAS with backoff, 4 domains: - 62.41 M/s + 11.93 M/s ops over time/CAS with backoff, 8 domains: - 20.74 M/s + 4.69 M/s ops over time/Incr, 1 domains: - 109.30 M/s + 8.38 M/s ops over time/Incr, 2 domains: - 55.69 M/s + 16.17 M/s ops over time/Incr, 4 domains: - 58.12 M/s + 12.32 M/s ops over time/Incr, 8 domains: - 59.66 M/s + 5.41 M/s time per op/CAS, 1 domains: - 12.58 ns + 102.05 ns time per op/CAS, 2 domains: - 98.40 ns + 199.72 ns time per op/CAS, 4 domains: - 287.84 ns + 394.79 ns time per op/CAS, 8 domains: - 747.80 ns + 1784.39 ns time per op/CAS with backoff, 1 domains: - 12.42 ns + 81.42 ns time per op/CAS with backoff, 2 domains: - 27.70 ns + 154.06 ns time per op/CAS with backoff, 4 domains: - 64.09 ns + 335.34 ns time per op/CAS with backoff, 8 domains: - 385.80 ns + 1705.21 ns time per op/Incr, 1 domains: - 9.15 ns + 119.38 ns time per op/Incr, 2 domains: - 35.91 ns + 123.67 ns time per op/Incr, 4 domains: - 68.82 ns + 324.64 ns time per op/Incr, 8 domains: - 134.08 ns + 1477.56 ns Bounded_q: messages over time/1 adder, 1 taker: - 6.00 M/s + 2.04 M/s messages over time/1 adder, 2 takers: - 3.27 M/s + 1.83 M/s messages over time/1 adder, 4 takers: - 1.27 M/s + 1.21 M/s messages over time/2 adders, 1 taker: - 3.68 M/s + 3.14 M/s messages over time/2 adders, 2 takers: - 2.58 M/s + 2.55 M/s messages over time/2 adders, 4 takers: - 2.17 M/s + 2.31 M/s messages over time/4 adders, 1 taker: - 3.50 M/s + 1.99 M/s messages over time/4 adders, 2 takers: - 2.29 M/s + 2.65 M/s messages over time/4 adders, 4 takers: - 1.63 M/s + 3.22 M/s messages over time/one domain: - 11.12 M/s + 1.32 M/s time per message/1 adder, 1 taker: - 333.09 ns + 982.13 ns time per message/1 adder, 2 takers: - 918.76 ns + 1639.87 ns time per message/1 adder, 4 takers: - 3946.65 ns + 4148.96 ns time per message/2 adders, 1 taker: - 816.25 ns + 955.86 ns time per message/2 adders, 2 takers: - 1548.51 ns + 1567.36 ns time per message/2 adders, 4 takers: - 2764.33 ns + 2600.60 ns time per message/4 adders, 1 taker: - 1428.64 ns + 2506.64 ns time per message/4 adders, 2 takers: - 2620.50 ns + 2263.34 ns time per message/4 adders, 4 takers: - 4921.21 ns + 2487.30 ns time per message/one domain: - 89.90 ns + 758.09 ns Hashtbl: operations over time/1 worker, 10% reads: - 14.11 M/s + 2.56 M/s operations over time/1 worker, 50% reads: - 13.92 M/s + 0.99 M/s operations over time/1 worker, 90% reads: - 14.83 M/s + 1.48 M/s operations over time/2 workers, 10% reads: - 4.12 M/s + 2.32 M/s operations over time/2 workers, 50% reads: - 3.36 M/s + 1.71 M/s operations over time/2 workers, 90% reads: - 4.69 M/s + 5.37 M/s operations over time/4 workers, 10% reads: - 4.55 M/s + 2.99 M/s operations over time/4 workers, 50% reads: - 2.66 M/s + 2.84 M/s operations over time/4 workers, 90% reads: - 4.32 M/s + 4.30 M/s operations over time/8 workers, 10% reads: - 1.57 M/s + 2.45 M/s operations over time/8 workers, 50% reads: - 2.14 M/s + 3.18 M/s operations over time/8 workers, 90% reads: - 2.57 M/s + 4.75 M/s operations over time/one domain, 10% reads: - 21.19 M/s + 3.18 M/s operations over time/one domain, 50% reads: - 20.83 M/s + 4.79 M/s operations over time/one domain, 90% reads: - 24.49 M/s + 4.08 M/s time per operation/1 worker, 10% reads: - 70.88 ns + 390.04 ns time per operation/1 worker, 50% reads: - 71.83 ns + 1011.49 ns time per operation/1 worker, 90% reads: - 67.41 ns + 676.54 ns time per operation/2 workers, 10% reads: - 485.55 ns + 863.26 ns time per operation/2 workers, 50% reads: - 595.37 ns + 1167.78 ns time per operation/2 workers, 90% reads: - 426.46 ns + 372.44 ns time per operation/4 workers, 10% reads: - 879.73 ns + 1338.89 ns time per operation/4 workers, 50% reads: - 1506.44 ns + 1406.34 ns time per operation/4 workers, 90% reads: - 926.11 ns + 930.05 ns time per operation/8 workers, 10% reads: - 5087.70 ns + 3259.74 ns time per operation/8 workers, 50% reads: - 3746.44 ns + 2515.19 ns time per operation/8 workers, 90% reads: - 3113.22 ns + 1683.54 ns time per operation/one domain, 10% reads: - 47.20 ns + 314.82 ns time per operation/one domain, 50% reads: - 48.01 ns + 208.76 ns time per operation/one domain, 90% reads: - 40.83 ns + 245.29 ns Queue: messages over time/one domain: - 34.27 M/s + 4.38 M/s time per message/one domain: - 29.18 ns + 228.34 ns Ref with Mutex: ops over time/cas int: - 29.54 M/s + 5.36 M/s ops over time/get: - 31.72 M/s + 5.31 M/s ops over time/incr: - 31.38 M/s + 5.25 M/s ops over time/push & pop: - 26.22 M/s + 4.27 M/s ops over time/swap: - 27.97 M/s + 1.61 M/s ops over time/xchg int: - 29.59 M/s + 8.16 M/s time per op/cas int: - 33.86 ns + 186.53 ns time per op/get: - 31.53 ns + 188.46 ns time per op/incr: - 31.86 ns + 190.38 ns time per op/push & pop: - 38.13 ns + 234.33 ns time per op/swap: - 35.75 ns + 621.62 ns time per op/xchg int: - 33.80 ns + 122.58 ns Ref with [@poll error]: ops over time/cas int: - 160.95 M/s + 48.42 M/s ops over time/get: - 525.04 M/s + 92.57 M/s ops over time/incr: - 361.60 M/s + 266.62 M/s ops over time/push & pop: - 68.22 M/s + 3.78 M/s ops over time/swap: - 105.24 M/s + 6.83 M/s ops over time/xchg int: - 174.85 M/s + 27.07 M/s time per op/cas int: - 6.21 ns + 20.65 ns time per op/get: - 1.90 ns + 10.80 ns time per op/incr: - 2.77 ns + 3.75 ns time per op/push & pop: - 14.66 ns + 264.65 ns time per op/swap: - 9.50 ns + 146.40 ns time per op/xchg int: - 5.72 ns + 36.94 ns Stack: messages over time/one domain: - 40.32 M/s + 2.92 M/s time per message/one domain: - 24.80 ns + 343.00 ns Unix: blocking reads over time/1 worker: - 1.20 M/s + 0.19 M/s blocking reads over time/2 workers: - 2.42 M/s + 0.51 M/s blocking reads over time/4 workers: - 4.85 M/s + 0.72 M/s time per blocking read/1 worker: - 830.50 ns + 5151.09 ns time per blocking read/2 workers: - 827.95 ns + 3889.42 ns time per blocking read/4 workers: - 824.28 ns + 5571.66 ns create-stamp debian/debhelper-build-stamp dh_testroot -O--buildsystem=ocaml_dune dh_prep -O--buildsystem=ocaml_dune @@ -986,12 +1022,14 @@ 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/3410463/tmp/hooks/B01_cleanup starting +I: user script /srv/workspace/pbuilder/3410463/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/330871 and its subdirectories -I: Current time: Tue Apr 14 15:44:24 -12 2026 -I: pbuilder-time-stamp: 1776224664 +I: removing directory /srv/workspace/pbuilder/3410463 and its subdirectories +I: Current time: Thu Mar 13 11:26:56 +14 2025 +I: pbuilder-time-stamp: 1741814816