Public bug reported:
I have a script, which uses gdb -x to evaluate a large number of
expressions on a running program. As gdb is processing those
expressions, it takes longer and longer time to process each line of
input. This results in the overall time consumption being quadratic in
the number of input lines.
I tested the same script on a Fedora install. On Fedora gdb runs several
orders of magnitude faster.
ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: gdb 7.1-1ubuntu2
ProcVersionSignature: Ubuntu 2.6.32-37.81-generic 2.6.32.49+drm33.21
Uname: Linux 2.6.32-37-generic i686
Architecture: i386
Date: Fri Jan 4 10:42:11 2013
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 10.04.3 LTS "Lucid Lynx" - Release i386 (20110720.1)
ProcEnviron:
PATH=(custom, no user)
LANG=en_DK.UTF-8
SHELL=/bin/bash
SourcePackage: gdb
** Affects: gdb (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386 lucid
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https://bugs.launchpad.net/bugs/1095990
Title:
gdb -x uses quadratic time
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