http://sourceware.org/bugzilla/show_bug.cgi?id=13897
Bug #: 13897
Summary: objdump (ppc64) performance has severely degraded in
the binutils 2.22.52_0322
Product: binutils
Version: 2.22
Status: NEW
Severity: normal
Priority: P2
Component: binutils
AssignedTo: unassig...@sourceware.org
ReportedBy: johnhru...@gmail.com
Classification: Unclassified
Created attachment 6300
--> http://sourceware.org/bugzilla/attachment.cgi?id=6300
tarball containing ELF file I used to test.
We're disassembling the attached file with:
./objdump -d -S -x mtwx53252-core0.elf > out
With binutils 2.22.51, this disassembly happens in
real0m6.501s
user0m6.475s
sys0m0.018s
With binutils 2.22.52 0322 snaphsot, I get:
real12m23.685s
user9m0.350s
sys3m19.035s
12 minutes now vs. 6 seconds previously.
The -S flag is key, performance is fine if -S is excluded from the command.
target:
mtwx53252-core0.elf: ELF 64-bit MSB executable, 64-bit PowerPC or cisco 7500,
version 1 (SYSV), statically linked, not stripped
host:
./objdump -v
GNU objdump (GNU Binutils) 2.22.52.20120322
uname -a
Linux 2.6.35.6-45.fc14.x86_64 #1 SMP Mon Oct 18 23:57:44 UTC 2010 x86_64
x86_64 x86_64 GNU/Linux
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