[Bug string/23709] glibc 2.27 lacks sse2 optimized strstr()

paul.borile at gmail dot com sourceware-bugzilla@sourceware.org
Thu Oct 11 10:29:00 GMT 2018


https://sourceware.org/bugzilla/show_bug.cgi?id=23709

--- Comment #18 from paul.borile at gmail dot com ---
(In reply to Florian Weimer from comment #1)
> glibc 2.27 on Fedora 28 x86_64 selects __strstr_sse2.
> 
> What's your architecture, and which CPU do you use?

fedora28 seems to have the problem :

$ docker run -i fedora:28 /bin/bash -c "cat > strstr ; chmod +x strstr ; time
./strstr aa" < ./strstr
Unable to find image 'fedora:28' locally
28: Pulling from library/fedora
565884f490d9: Pull complete 
Digest: sha256:b41cd083421dd7aa46d619e958b75a026a5d5733f08f14ba6d53943d6106ea6d
Status: Downloaded newer image for fedora:28
matches = 3000000

real    0m4.510s
user    0m4.510s
sys     0m0.000s

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