Public bug reported:
Looks like code using strstr() and libc-2.27 is running 4 times slower
than was with libc-2.23. Having a look at profiled code executed in
various moments show different versions of strstr :
- libc-2.27.so: strstr.c, str-two-way.h - this is current version ubuntu
18.04.1
Same code, profiled March 13, 2018 :
- libc-2.23.so: strstr-sse2-unaligned.S
Is the removal of sse2 optimized code from strstr() an error of some kind ?
Best
-Paul
** Affects: glibc (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1793786
Title:
libc6 2.27 lacks sse2 optimized strstr()
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