Hi Norbert,
On Thu, 2024-05-02 at 08:44 +0900, norb...@preining.info wrote:
> at Debian they got a report that loading expl3.ltx when building formats
> is **extremely** slow when running under emulations:
>
> 1070150 at bugs.debian.org
>
> Running fmtutil output through ts (timestamp utility from moreutils):
>
> May 01 14:28:46 LaTeX2e <2024-06-01> pre-release-0 (develop 2024-5-1 branch)
> May 01 14:28:46 (/usr/share/texlive/texmf-dist/tex/latex/l3kernel/expl3.ltx
> May 01 14:51:15
> (/usr/share/texlive/texmf-dist/tex/latex/l3kernel/expl3-code.tex)) hacks,
> May 01 14:51:19 document commands, control, par, spacing, files, font
> encodings, lengths,
>
> That is 23 **minutes** to load expl3-code.tex. Ok, the file is nearly 4k
> lines, but still, 23 minutes seems to be excessive.
I don't think that this is TeX-related. From a Fedora 39 x86_64 host:
$ podman run --arch arm64 --rm -it --pull always debian:stable /bin/bash
$ apt update && \
apt install -y moreutils && \
apt install -y --download-only python3-minimal
[...]
$ time apt install -y python3-minimal | ts
May 02 05:27:51 Reading package lists...
May 02 05:27:52 Building dependency tree...
May 02 05:27:52 Reading state information...
May 02 05:27:52 The following additional packages will be installed:
May 02 05:27:52 ca-certificates krb5-locales libexpat1 libgpm2
libgssapi-krb5-2 libk5crypto3
May 02 05:27:52 libkeyutils1 libkrb5-3 libkrb5support0 libncursesw6
libnsl2
May 02 05:27:52 libpython3.11-minimal libpython3.11-stdlib libreadline8
libsqlite3-0 libssl3
May 02 05:27:52 libtirpc-common libtirpc3 media-types openssl python3.11
python3.11-minimal
May 02 05:27:52 readline-common
May 02 05:27:52 Suggested packages:
May 02 05:27:52 gpm krb5-doc krb5-user python3.11-venv python3.11-doc
binutils
May 02 05:27:52 binfmt-support readline-doc
May 02 05:27:53 The following NEW packages will be installed:
May 02 05:27:53 ca-certificates krb5-locales libexpat1 libgpm2
libgssapi-krb5-2 libk5crypto3
May 02 05:27:53 libkeyutils1 libkrb5-3 libkrb5support0 libncursesw6
libnsl2
May 02 05:27:53 libpython3.11-minimal libpython3.11-stdlib libreadline8
libsqlite3-0 libssl3
May 02 05:27:53 libtirpc-common libtirpc3 media-types openssl
python3-minimal python3.11
May 02 05:27:53 python3.11-minimal readline-common
[...]
May 02 05:28:40 done.
real 0m52.253s
user 0m51.889s
sys 0m7.453s
$ exit
$ podman run --arch arm64 --rm --pull always -it debian:sid /bin/bash
$ apt update && \
apt install -y moreutils && \
apt install -y --download-only python3-minimal
[...]
$ time apt install -y python3-minimal | ts
May 02 05:29:22 Reading package lists...
May 02 05:29:26 Building dependency tree...
May 02 05:29:26 Reading state information...
May 02 05:29:30 Installing:
May 02 05:29:30 python3-minimal
May 02 05:29:30
May 02 05:29:30 Installing dependencies:
May 02 05:29:30 ca-certificates libpython3.11-minimal media-types
readline-common
May 02 05:29:30 libexpat1 libpython3.11-stdlib openssl
May 02 05:29:30 libgpm2 libreadline8t64 python3.11
May 02 05:29:30 libncursesw6 libsqlite3-0 python3.11-minimal
May 02 05:29:30
May 02 05:29:30 Suggested packages:
May 02 05:29:30 gpm python3.11-venv python3.11-doc binutils
binfmt-support readline-doc
[...]
May 02 05:32:56 done.
real 3m52.398s
user 3m54.177s
sys 0m7.514s
$ exit
Thanks,
-- Max
