It seems my router is actually Cortex A73, but apk downloads A53 packages instead. Can I just download Openwrt source code and just build A73 packages myself? Would it do that?
What benefit you are expecting? Both cores share same ISA.
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Theoretically there must be %10-15 difference no?
@bosukes
Buildbots and the OpenWrt Buildroot conditions that, so you would have to make the change in your Buildroot.
If you have a compelling reason to do so, why not?
@brada4
I build my WRT1900ACS with VFPv3-D32 Vector Floating Point Unit instead of VFPv3-D16 Vector Floating Point Unit which it is capable of being used on most of the wrtpac devices.
base-files_1592~4ebcc5375a_arm_cortex-a9_vfpv3.ipk
or
base-files_1536-r23688+6-afa229038c_arm_cortex-a9_vfpv3-d16.ipk
A53 and A73 are same features, just 2x/4x cache and 2x3x faster processing. Here one can -mtune for ones exact processor a bit. Most notably network processing is memcpy that more or less sits with RAM transfer rate, or offload engines that again are off cpu.