https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63927
Bug ID: 63927
Summary: AddressSanitizer painfully slow on ppc64
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: sanitizer
Assignee: unassigned at gcc dot gnu.org
Reporter: trippels at gcc dot gnu.org
CC: dodji at gcc dot gnu.org, dvyukov at gcc dot gnu.org,
jakub at gcc dot gnu.org, kcc at gcc dot gnu.org
Created attachment 34013
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=34013&action=edit
testcase
With the attached testcase, that measures the performance of different
C++ containers, AddressSanitizer is very slow on ppc64. x86_64 is fine.
For example:
trippels@gcc2-power8 ~ % g++ -fsanitize=address -g -O2 bench.cpp
trippels@gcc2-power8 ~ % ./a.out
size array vector_point vector_iters deque
list set multiset
10 15.79 13.85 13.14 26.04
232.16 132.72 266.89
^C
On x86_64:
markus@x4 ~ % ./a.out
size array vector_point vector_iters deque
list set multiset
10 0.46 0.46 0.46 1.39
4.55 2.36 3.74
...
