Slackware ARM -current - updates & performance - post-June 2019

codeguy · 08-10-2019, 09:32 AM

I found changelogs, if you scroll down, there is an ARM section. Lots and lots of changes (most of which I dont understand):

GCC 6
GCC 7
GCC 8
GCC 9

Exaga · 08-10-2019, 10:10 AM

Quote:

Originally Posted by codeguy

I'll bet its GCC adding new support and new optimizations for ARM. Lots of differences between GCC 5 and 9. And it would affect everything, kernel, apps, drivers. Everything.

If you were really curious, you could try to install different versions of GCC, and recompile something (like zip/bzip/gzip) and see if that made a difference.

Curious, yes. Free time to spend/spare on such a venture, no.

Quote:

Originally Posted by codeguy

I found changelogs, if you scroll down, there is an ARM section. Lots and lots of changes (most of which I dont understand):

GCC 6
GCC 7
GCC 8
GCC 9

Thanks for the info and advice Re: gcc. If you don't understand most of the above then at least we're in a similar position.

The only thing I was already aware of in gcc-9.1 is the added support for Cortex-A55 and A76 CPUs. Everything else [ARM related] is pretty much news to me. Reading these changes makes me appreciate just how much everything would be affected, as you wrote.

Really good educational stuff. Cheers!

Exaga · 08-10-2019, 10:14 AM

Quote:

Originally Posted by glorsplitz

From Which Pi have I got?

Code:

cat /proc/cpuinfo | grep 'Revision' | awk '{print $3}' | sed 's/^1000//'

Following output from my first rpi3, other rpi3 I have is running now.

Isn't the better performance because the RPi4 devices are just better faster stronger?

Good point. I did the latest test on the Raspberry Pi 3B+ based on your [this] post. Thanks for the idea and clarity.

drmozes · 08-11-2019, 11:19 AM

Quote:

Originally Posted by codeguy

I found changelogs, if you scroll down, there is an ARM section. Lots and lots of changes (most of which I dont understand):

This is the reason for the full rebuild.

Exaga · 08-12-2019, 06:07 AM

Quote:

Originally Posted by drmozes

This is the reason for the full rebuild.

Now I'm beginning to understand. The fog is starting to clear and things are making a little bit more sense.