RE: [PATCH] Speedup wc -l

coreutils

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RE: [PATCH] Speedup wc -l

From:	William Bader
Subject:	RE: [PATCH] Speedup wc -l
Date:	Sun, 15 Mar 2015 21:19:16 -0400

>This is with gcc 4.9.2-7 and glibc 2.19-17 on Debian amd64. The difference is still there for me when compiling with your CFLAGS. Have they improved memchr in glibc 2.20?

Doesn't gcc inline memchr() if the signature matches and you have not specified -fno-builtin? Is the slow memchr() a gcc issue or a glibc issue?

https://gcc.gnu.org/onlinedocs/gcc/Other-Builtins.html

William

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