Stephen John Smoogen wrote:
> #!/usr/bin/awk -f
>
> BEGIN {
> while (!/flags/) if (getline < "/proc/cpuinfo" != 1) exit 1
> if (/lm/&&/cmov/&&/cx8/&&/fpu/&&/fxsr/&&/mmx/&&/syscall/&&/sse2/) level = 1
> if (level == 1 &&
> /cx16/&&/lahf/&&/popcnt/&&/sse4_1/&&/sse4_2/&&/ssse3/) level = 2
> if (level == 2 &&
> /avx/&&/avx2/&&/bmi1/&&/bmi2/&&/f16c/&&/fma/&&/abm/&&/movbe/&&/xsave/)
> level = 3
> if (level == 3 &&
> /avx512f/&&/avx512bw/&&/avx512cd/&&/avx512dq/&&/avx512vl/) level = 4
> if (level > 0) { print "CPU supports x86-64-v" level; exit level + 1 }
> exit 1
> }
That script says "x86-64-v1" on my previous workstation, which is now a
server. But I'm already planning to reinstall that one with Debian, to
get less upgrade churn while keeping Ada and ZFS, so it won't hurt me
if Fedora stops working there.
Björn Persson
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