On Monday, 6 September 2021 19:35:19 AEST David Zhan wrote:
> Google also offers similar free-tire service on GCP, I think that's in
> their US region.

https://cloud.google.com/free

It seems that they just offer $300 of credit and no more.

https://cloud.google.com/free/docs/gcp-free-tier#free-tier-usage-limits

They also have ongoing free tier usage.  Some of them are pretty much 
unlimited use (50GB of storage for "Cloud Source Repositories" is a heap of 
source code).  But for VMs you get the equivalent of 1*e2-micro instance 
running 24*7.  A e2-micro has 1G of RAM.  You also only get 30G of storage and 
1GB of outbound data.  It's clearly not as generous an offer as Oracle, but 
Oracle is the underdog so they have to try harder.

> Apart from that, AWS edu is pretty good as well, I used it for free for 3
> years. The trick is after the first one year free trial, you can join a
> special event they run on Dec every year and they reward everyone who
> participated with an 150USD credit voucher, enough to run a VPS till the
> next event.

https://aws.amazon.com/free

AWS offers 750 hours (just over 31 days) per month of free usage of a t2.micro 
or t3.micro EC2 instance (which means 1GB of RAM).  But that only lasts for 12 
months and it's still only 1GB of RAM.  AWS has some other things that could 
be useful like 1 million free Lambda requests per month.  If you want to run 
your personal web site on that it should do well.

https://azure.microsoft.com/en-us/free/

Azure appears to be much the same as AWS, free Linux VM for a year and then 
other less popular services free forever (or until they change the contract).


Oracle seems like the most generous offer if you want to do stuff, but also 
one of the least valuable if you want to learn things that will help you at a 
job interview.  For job interviews AWS seems the most useful and then GCP and 
Azure vying for second place.

I haven't done any detailed tests of VM performance on the Oracle Cloud. As a 
quick test I used zstd to compress a 154MB file, on my home workstation 
(E5-2620 v4 @ 2.10GHz) it took 11.3 seconds of CPU time to compress with zstd 
-9 and 7.2s to decompress. On the Oracle cloud it took 7.2s and 5.4s. So it 
seems that for some single core operations the ARM CPU used by the Oracle 
cloud is about 30% to 50% faster than a E5-2620 v4 (a slightly out of date 
server processor that uses DDR4 RAM).

If you ran all the free resources in a single VM that would make a respectable 
build server. If you want to contribute to free software development and only 
have a laptop with 4G of RAM then an ARM build/test server with 24G of RAM and 
4 cores would be very useful.

-- 
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