Setup for Compiler Options Benchmark

foobixu

Junior Member

Join Date: Aug 2019

Posts: 1
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#1

Setup for Compiler Options Benchmark

09 August 2019, 07:23 PM

Hi!
I would like to reproduce tests for -O2/-O3/-Ofast and -march options similar to this
However options passing via CFLAGS/CXXFLAGS produces strange results.

Code:

$CXXFLAGS="-Ofast -march=znver1" CFLAGS="-Ofast -march=znver1" phoronix-test-suite force-install john-the-ripper

And in install.log

Code:

... cc -DAC_BUILT -mavx2 -DJOHN_AVX2 -c -m64 -O3 -march=native -Ofast -march=znver1 ...

Same with another installation

Code:

$CXXFLAGS="-Ofast -march=znver1" CFLAGS="-Ofast -march=znver1" phoronix-test-suite force-install coremark

Code:

gcc -O2 -Ilinux64 -I. -DFLAGS_STR=\""-O2 -Ofast -march=znver1 ...

PTS 8.8.1, Ubuntu 19.04
Tags: cflags, cxxflags, pts

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