kerozin.joe at gmail.com
Fri Jul 8 13:19:18 UTC 2016
Seems like --with-cc=clang flag is where I can define clang compiler. Is it
safe to use with --with-cc-opt='-std=c11 ...? I think clang uses C11 anyway.
2016-07-08 14:44 GMT+02:00 Lantos István <kerozin.joe at gmail.com>:
> The default --with-cc-opt flags for Nginx are these:
> *--with-cc-opt='-g -O2 -fstack-protector-strong -Wformat
>> -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2'*
> However I added more optimizations, which are against the standard:
> *--with-cc-opt='-g -Ofast -march=native -ffast-math
>> -fstack-protector-strong -Wformat -Werror=format-security
> So far I don't experience any bug, but I do have a higher benchmark:
> 380-450 req/s compared to the original 290-310 req/s with cached
> Node/Express app on my laptop.
> Is it safe to use -O3 or -Ofast flags with Nginx?
> Is it possible to build Nginx with clang? If so, should I symlink it to
> gcc (I use Docker, this way gcc executable is trashed) or is there a way to
> define the compiler with a flag?
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