https://sourceware.org/bugzilla/show_bug.cgi?id=33062
Bug ID: 33062
Summary: speed up readelf default (not -N) symbol resolution
Product: elfutils
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: tools
Assignee: unassigned at sourceware dot org
Reporter: fche at redhat dot com
CC: elfutils-devel at sourceware dot org
Target Milestone: ---
elfutils readelf defaults to symbol resolution of addresses found in dwarf
references; binutils readelf doesn't. The performance implication of this
default is stark. Operating on a large c++ binary (stap):
- binutils readelf -w || 7.24s user 0.17s system 99% cpu 7.432 total
- stock eu-readelf -w || 582.05s user 0.09s system 99% cpu 9:43.47 total
- stock eu-readelf -w -N || 3.88s user 0.04s system 99% cpu 3.930 total
i.e. a factor of ~200 slowdown. Surely it can be made faster.
--
You are receiving this mail because:
You are on the CC list for the bug.
