Your message dated Sun, 07 Aug 2022 21:06:46 +0000
with message-id <e1oknty-004xfp...@fasolo.debian.org>
and subject line Bug#896008: fixed in glibc 2.35-0experimental0
has caused the Debian Bug report #896008,
regarding RFE: Improve performance of dynamic loader for deeply nested DSO
dependencies
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
(NB: If you are a system administrator and have no idea what this
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--
896008: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=896008
Debian Bug Tracking System
Contact ow...@bugs.debian.org with problems
--- Begin Message ---
Package: libc6
Version: 2.23-0ubuntu9
Severity: normal
Dear Maintainer,
*** Reporter, please consider answering these questions, where appropriate ***
* What led up to the situation?
We have around 450 dynamic libraries which are linked against the executable.
The library calls are deeply nested and are cyclic in nature. Because of this
the run time loader takes around 35 seconds to startup the application. The
sorting code which is present in the loader do not scale up well when the
number of libraries are huge and deeply nested. The sorting code I am
referring is in dl-deps.c(line 620 to 668). Please refer below link for the
bug raised in upstream and the fix suggested.
https://sourceware.org/bugzilla/show_bug.cgi?id=17645
* What exactly did you do (or not do) that was effective (or
ineffective)?
Took the code mentioned in the upstream patch and built the loader and ran the
executable with the new loader. There is huge performance improvement. The
time needed to startup the application came down to 1 second from 35 seconds.
* What was the outcome of this action?
There was huge performance improvement.
* What outcome did you expect instead?
The loader should start the application fast.
*** End of the template - remove these template lines ***
-- System Information:
Debian Release: stretch/sid
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 4.4.0-97-generic (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages libc6 depends on:
ii libgcc1 1:6.0.1-0ubuntu1
libc6 recommends no packages.
Versions of packages libc6 suggests:
ii debconf [debconf-2.0] 1.5.58ubuntu1
pn glibc-doc <none>
ii locales 2.23-0ubuntu9
-- debconf information:
glibc/kernel-too-old:
glibc/restart-services:
glibc/restart-failed:
glibc/upgrade: true
glibc/kernel-not-supported:
libraries/restart-without-asking: false
glibc/disable-screensaver:
signature.asc
Description: This is a digitally signed message part.
--- End Message ---
--- Begin Message ---
Source: glibc
Source-Version: 2.35-0experimental0
Done: Aurelien Jarno <aure...@debian.org>
We believe that the bug you reported is fixed in the latest version of
glibc, which is due to be installed in the Debian FTP archive.
A summary of the changes between this version and the previous one is
attached.
Thank you for reporting the bug, which will now be closed. If you
have further comments please address them to 896...@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
Aurelien Jarno <aure...@debian.org> (supplier of updated glibc package)
(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmas...@ftp-master.debian.org)
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
Format: 1.8
Date: Sun, 07 Aug 2022 22:25:02 +0200
Source: glibc
Architecture: source
Version: 2.35-0experimental0
Distribution: experimental
Urgency: medium
Maintainer: GNU Libc Maintainers <debian-glibc@lists.debian.org>
Changed-By: Aurelien Jarno <aure...@debian.org>
Closes: 775716 896008 946606
Changes:
glibc (2.35-0experimental0) experimental; urgency=medium
.
[ Aurelien Jarno ]
* New upstream release:
- Fixes performance issues in dynamic loader. Closes: #896008.
- debian/symbols.wildcard: add 2.35.
- debian/patches/localedata/locale-C.diff: upstreamed.
- debian/patches/alpha/local-string-functions.diff: rebased.
- debian/patches/hurd-i386/git-drop-rmh.diff: upstreamed.
- debian/patches/hurd-i386/git-AT_NO_AUTOMOUNT.diff: upstreamed.
- debian/patches/hurd-i386/git-get_errlist.diff: upstreamed.
- debian/patches/hurd-i386/git-msync.diff: upstreamed.
- debian/patches/hurd-i386/git-htl-init_sigset.diff: upstreamed.
- debian/patches/hurd-i386/git-machrules-chk_fail.diff: upstreamed.
- debian/patches/hurd-i386/git-random-getrandom.diff: upstreamed.
- debian/patches/hurd-i386/git-lib-map.diff: upstreamed.
- debian/patches/hurd-i386/git-large-text.diff: upstreamed.
- debian/patches/hurd-i386/git-get_dtable.diff: upstreamed.
- debian/patches/hurd-i386/git-auth-leak.diff: upstreamed.
- debian/patches/hurd-i386/git-nuke_ports_on_exec.diff: upstreamed.
- debian/patches/hurd-i386/git-ttydefaults.diff: upstreamed.
- debian/patches/hurd-i386/git-const.diff: upstreamed.
- debian/patches/hurd-i386/git-pthread_kill_exited.diff: upstreamed.
- debian/patches/hurd-i386/git-reply_bogus.diff: upstreamed.
- debian/patches/hurd-i386/tg-EIEIO-fr.diff: upstreamed.
- debian/patches/hurd-i386/tg-EGREGIOUS-fr.diff: upstreamed.
- debian/patches/hurd-i386/local-tls-ie-align.diff: dropped, obsolete.
- debian/patches/kfreebsd/submitted-auxv.diff: rebased.
- debian/patches/mips/submitted-rld_map.diff: rebased.
- debian/patches/all/submitted-po-fr-fixes.diff: upstreamed.
- debian/patches/any/local-ldconfig-ignore-ld.so.diff: rebased.
- debian/patches/any/git-localedef-check-magic.patch: upstreamed.
- debian/debhelper.in/libc-bin.{install,manpages}: stop installing
catchsegv, removed upstream. Closes: #775716, #946606.
* debian/sysdeps/{amd64,arm64,i386,x32}.mk: stop passing --enable-static-pie
to configure as it is now the default.
* debian/debhelper.in/libc-bin.install: install /usr/bin/ld.so in libc-bin.
* debian/rules.d/build.mk: remove the C.utf8 locale from locales-all to
avoid conflicts with the one in libc-bin. Unfortunately we can't use the
one build in locales-all for libc-bin, as locales-all currently can't be
cross-compiled.
* debian/rules.d/debhelper.mk: do not offer C.UTF-8 in the list of locales
that can be generated through the debconf template, as it is already
provided by libc-bin.
* debian/testsuite-xfail-debian.mk: add new math tests that are also
affected by the Octeon 3 and XBurst tininess detection.
.
[ Samuel Thibault ]
* debian/patches/hurd-i386/local-fix-nss.diff: Refresh.
* debian/patches/hurd-i386/submitted-net.diff: Refresh.
* debian/patches/hurd-i386/tg-bits_atomic.h_multiple_threads.diff: Refresh.
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