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[Bug c++/15519] New: GDB 7.6 is 94x slower than GDB 7.5.1 using a certain core file
- From: "psmith at gnu dot org" <sourceware-bugzilla at sourceware dot org>
- To: gdb-prs at sourceware dot org
- Date: Wed, 22 May 2013 21:00:53 +0000
- Subject: [Bug c++/15519] New: GDB 7.6 is 94x slower than GDB 7.5.1 using a certain core file
- Auto-submitted: auto-generated
http://sourceware.org/bugzilla/show_bug.cgi?id=15519
Bug #: 15519
Summary: GDB 7.6 is 94x slower than GDB 7.5.1 using a certain
core file
Product: gdb
Version: 7.6
Status: NEW
Severity: normal
Priority: P2
Component: c++
AssignedTo: unassigned@sourceware.org
ReportedBy: psmith@gnu.org
Classification: Unclassified
Please see this thread: http://sourceware.org/ml/gdb/2013-05/msg00074.html
I couldn't pick a particular component: the slowdown appears when running a
macro on a core file from a C++ program; the macro walks through a list of
objects referenced by another object. Other core dumps from the same
executable do not show this slowdown, and so far we haven't been able to
reproduce it using live debugging.
Bisecting via Git declares the slowdown to have been introduced with this
commit:
677b1bfabd372790dca4dad32fcb05dd77658728 is the first bad commit
commit 677b1bfabd372790dca4dad32fcb05dd77658728
Author: Keith Seitz <keiths@redhat.com>
Date: Fri Nov 16 20:54:28 2012 +0000
I'll see if I can get more details.
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