Re:Experiment: The costs of slow build times
by reitzensteinm on Friday December 09, 2022 @07:21AM
(#33920470)
I'd put money on an i7 960 from '08 beating a 2 vCPU GitHub Actions instance in raw compute.
My single threaded code runs about half as fast in Actions compared to my 3900x. They're not fast instances.
Re:Experiment: The costs of slow build times
by Delemono on Saturday December 10, 2022 @03:27AM
(#33930994)
Your 3900x is from 2019. Op compared a CPU from 2008!
Re:Experiment: The costs of slow build times
by reitzensteinm on Saturday December 10, 2022 @03:53AM
(#33931102)
Single threaded performance just hasn't shifted that quickly in the interim.
In order for the quad core, eight thread 960 to be slower than an Actions instance, there'd need to have been an 8x uplift in single core performance since '08. It's been more like 2x.
Re:Experiment: The costs of slow build times
by tjoff on Friday December 09, 2022 @06:21AM
(#33920130)
Yes, but the 2008 CPU was 4 cores (and 8 GB of ram). Also, that is 4 real cores, compared to two logical cores. Probably still slower, but with much faster network.
~Comparable. Or maybe I got it wrong, both are still dog slow compared to anything people actually use though.
Re:Experiment: The costs of slow build times
by flavius29663 on Friday December 09, 2022 @09:39AM
(#33921635)
do you have a source for that? Last time I looked, the cloud CPUs were intel based versions that were optimized for energy usage, with a lower clock-speed and lower single thread performance than older (at that time 2012ish) CPUs
There is a significant IPC increase with every generation.