Your message dated Wed, 16 Nov 2016 04:33:33 +0000 with message-id <[email protected]> and subject line Bug#824636: fixed in dpkg 1.18.15 has caused the Debian Bug report #824636, regarding dpkg: Slow install performance 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 message is talking about, this may indicate a serious mail system misconfiguration somewhere. Please contact [email protected] immediately.) -- 824636: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=824636 Debian Bug Tracking System Contact [email protected] with problems
--- Begin Message ---Package: dpkg Version: 1.17.26 Severity: important Dear Maintainer, * What led up to the situation? Installation of a system takes an extreme long time. The systems have RAID controllers included: - Serial Attached SCSI controller: LSI Logic / Symbios Logic SAS2008 PCI-Express Fusion-MPT SAS-2 - Serial Attached SCSI controller: Intel Corporation C606 chipset Dual 4-Port SATA/SAS Storage Control Unit Classic SATA harddisks are connected to the IO controllers. Normally an install takes 10 minutes. On these systems it takes 50 minutes. Machine informations: Base Board Information Manufacturer: Supermicro Product Name: X9DR3-F Version: 1.11A Serial Number: VM2BS00000 Asset Tag: To be filled by O.E.M. Features: Board is a hosting board Board is replaceable Location In Chassis: To be filled by O.E.M. Chassis Handle: 0x0003 Type: Motherboard Contained Object Handles: 0 Base Board Information Manufacturer: Supermicro Product Name: X8DTH Version: 11A Serial Number: M0IS00000 Asset Tag: To Be Filled By O.E.M. Features: Board is a hosting board Board is replaceable Location In Chassis: To Be Filled By O.E.M. Chassis Handle: 0x0003 Type: Motherboard Contained Object Handles: 0 * What exactly did you do (or not do) that was effective (or ineffective)? Perform a normal install process. * Analysis By bisecting the source code of "dpkg" package with git showed that commit 87b0b20b86407baf1deb4e91b3fd839e01228ac8 commit 87b0b20b86407baf1deb4e91b3fd839e01228ac8 Author: Guillem Jover <[email protected]> Date: Tue Jul 15 21:00:52 2014 +0200 dpkg: Try to preallocate the disk size for extracted files This might help in avoiding filesystem fragmentation, and possibly improve performance on some filesystems. We use the system specific methods if available, and only use posix_fallocate() if nothing else is available, because on some systems its semantics are counter to what we want to obtain here, as the libc library will fallback to manually writing '\0' to each block to force the preallocation, instead of just failing and leaving the application to do so if desired. introduced the massive slow down of the install process. After "git revert" of this commit the installation behaved as expected. So the problematic system call on these systems is "fallocate". -- System Information: Debian Release: 8.4 APT prefers stable-updates APT policy: (500, 'stable-updates'), (500, 'stable') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 3.16.0-4-amd64 (SMP w/4 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 dpkg depends on: ii libbz2-1.0 1.0.6-7+b3 ii libc6 2.19-18+deb8u4 ii liblzma5 5.1.1alpha+20120614-2+b3 ii libselinux1 2.3-2 ii tar 1.27.1-2+b1 ii zlib1g 1:1.2.8.dfsg-2+b1 dpkg recommends no packages. Versions of packages dpkg suggests: ii apt 1.0.9.8.3 -- no debconf information
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--- Begin Message ---Source: dpkg Source-Version: 1.18.15 We believe that the bug you reported is fixed in the latest version of dpkg, 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 [email protected], and the maintainer will reopen the bug report if appropriate. Debian distribution maintenance software pp. Guillem Jover <[email protected]> (supplier of updated dpkg 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 [email protected]) -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 Format: 1.8 Date: Wed, 16 Nov 2016 03:28:05 +0100 Source: dpkg Binary: dpkg libdpkg-dev dpkg-dev libdpkg-perl dselect Architecture: source Version: 1.18.15 Distribution: unstable Urgency: medium Maintainer: Dpkg Developers <[email protected]> Changed-By: Guillem Jover <[email protected]> Description: dpkg - Debian package management system dpkg-dev - Debian package development tools dselect - Debian package management front-end libdpkg-dev - Debian package management static library libdpkg-perl - Dpkg perl modules Closes: 824636 843714 Changes: dpkg (1.18.15) unstable; urgency=medium . [ Guillem Jover ] * Improve PIE flags support: - Do not enable PIE when linking static programs. glibc-based systems do not support this combination and produce very bogus output. Proposed by Szabolcs Nagy <[email protected]>. Closes: #843714 * On source builds add 'source' to the Architecture field in the .buildinfo file in dpkg-genbuildinfo. * Add new Build-Date field to .buildinfo files. * Generate deterministic .buildinfo filenames in dpkg-genbuildinfo, following the same pattern as used for .changes files. * Bump .buildinfo Format to version 0.2. * Change dpkg-buildpackage -j and -J on “auto” mode to fallback to serial execution when we cannot infer the number of online processors on unsupported or exotic systems. This should be a safer mode of operation. Proposed by Simon McVittie <[email protected]>. * Only preallocate disk size in dpkg for unpacked files bigger than 16 KiB. Closes: #824636 * Perl modules: - Validate architecture arguments in Dpkg::Deps deps_parse(). Prompted by Johannes Schauer <[email protected]>. * Documentation: - Escape dashes in field names in dpkg-buildinfo(1). * Test suite: - Mark partially documented POD modules as TAP TODO. . [ Updated man pages translations ] * German (Helge Kreutzmann). Checksums-Sha1: e568fa3bdddace093b529a9f8e66577eee82dc73 2032 dpkg_1.18.15.dsc 62508011a8e9955f3563f3dfc77e3c32ba57d8bf 4494820 dpkg_1.18.15.tar.xz Checksums-Sha256: 63fdc2bd7a0e8d2c4066da228bd88e770e3094e8c761c33a3a700dc9edb12fbe 2032 dpkg_1.18.15.dsc aee936653b9c39403160c0a331ee7934563fbfa4e1f5adbc14a289c803cda371 4494820 dpkg_1.18.15.tar.xz Files: 9f7411f6c967d594cf84ee8de7292e7e 2032 admin required dpkg_1.18.15.dsc 7aa1b61da5bff4cbc5a1d2cb5a30d546 4494820 admin required dpkg_1.18.15.tar.xz -----BEGIN PGP SIGNATURE----- iQIzBAEBCgAdFiEETz509DYFDBD1aWV0uXK/PqSuV6MFAlgr3RIACgkQuXK/PqSu V6PNRRAAyj6DYG29EpHDO3Z8Imu13C3ld9gA2Sp+/SeXtAy57LVTSgIwsIMPFwqL awYzWEE73SB6RbmXnn+U94j5V47T8V2bbxtvUNFYh+hmqL1/2vwJFKGyyoEbLPTp DNDv2NZcCuXj1NS8z4ivRa/gaf2YufrfaCb8ZlKEHH2v6BOVSqoT46M+jwUTuyFm R5G9rnPJnbD43+dgfONvOD94fKezyErnura6+q4/al59CMTFacqq5w01VweCcqKN SyrL5YGK8bAl1ct7y0aURu4oLYgMNdei7d0sIjMfpRSfBagsSmbWcfHr4KRY7AbF CSGi2Vd4moJxGWyZlb6+ACCLRe9FRZXCUDAnhkqkDmEiB1BWt4qdgjr7VlQH3FLn z/IO87jOy2w07OJHep5NBO0TccsaOSbea2Yjeb9RikEqMlAq9bNAuCS0tUE30b8D pH23z05BD8vqboRT+Zk1LJbqCFpZd1GVO1rKqJCVWkboA/ellEubbDlTbF2hKWKP hhPm0b7EcWZq7+vLzx+H9qJzgcuy8B/vlSf7NTPYvyk3QkNXjt/yvgE3B9RmLkTu i8HS5NXEiYLfdwctf7SRGmnhslY2nrwhayg9K/2WOZlu8AQGK2MeW5aK6tkJPSKj I5kCKjoEbEDXfQ06MawPZzh4aDokdZdl9Q0VwJTOjCBRWATkPzs= =cx2Q -----END PGP SIGNATURE-----
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