https://sourceware.org/bugzilla/show_bug.cgi?id=28588
Bug ID: 28588
Summary: significant performance regression in addr2line
Product: binutils
Version: 2.38 (HEAD)
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: binutils
Assignee: unassigned at sourceware dot org
Reporter: joelhock at gmail dot com
Target Milestone: ---
Commit ca8f6bc629c causes a significant performance issue for my use of
addr2line. Specifically, the use of lookup_func_by_offset() exhibits quadratic
complexity when processing a new compile unit. One of our larger compile units
has 80k entries in the funcinfo table, many of which I believe come from C++
inlined subroutines. This takes almost 20 seconds to process, whereas before
this commit, processing the compile unit was nearly instantaneous. The
regression is especially felt when using a tool such as google-pprof, which
queries addresses across many compile units; what used to take 1 minute before
that commit now takes 10.
--
You are receiving this mail because:
You are on the CC list for the bug.
