I wished I believed this, but it feels closer to 50% Apple, 35% Windows, 15% Linux.

Wow I remember that from late OIF. Fascinating that they're still using it!

While you're at it, you should also find out why a website can scan your internal network...

Red Hat OpenShift (IBM) is what a lot of banks have settled on. Red Hat went all in maybe 5+ years ago in capturing those institutions.

Ah, that explains why IBM bought RedHat. Or at least one reason for doing so.

I'd imagine close to 95% in the US, if they're running important workloads on prem on Linux, it's on RHEL. A staggering number of VMs and bare metal.

(Clarification: I'm not saying 95% of all US company Linux workloads are RHEL, not even close.

I'm saying a huge percentage of high criticality (risk of loss of life / high financial risk) are, simply because of support and the name.)

Is that in addition to mainframes or for completely replacing them?

Probably both, to respond to the risk tolerances of any given org.

Both

Some stayed at on prem, some pushed code to mainframe VMs in the cloud, some went to OpenShift (mostly on prem from what Ive seen, probably 80-85%).

They own things like:

1. Red Hat Enterprise Linux, which is by far the most commonly deployed Linux variant among US Enterprise orgs.

2. Ansible

3. Podman

4. Hashicorp Terraform / Consul / Packer / Vagrant / Nomad / Etc.

5. Giant B2B services arm

6. Mainframe, which a lot of science organizations / governments / credit card companies still run. Sometimes you may have an IBM rep show up to replace a part on the mainframe you didn't even know was broken - very reliable, fault tolerant system.

7. The only service I know where you can rent Quantum computing time in the cloud

8. Probably a ton of other things I'm not even aware of.

9. Red Hat OpenShift - so if you're big enterprise running k8s on prem, there's a good chance it's OpenShift, especially in banking / finance / government.

You can rent Quantum computing time from IBM cloud today:

https://www.ibm.com/quantum/products

https://quantum.cloud.ibm.com/docs/en/guides/plans-overview

I have NOT used it, but the idea is interesting.

hello,

as always: imho (!)

i've used the ibm quantum platform together with python/qiskit during my last project - which was something like: simulate quantum-networks on "real" quantum-computers...

ibm's support, introductions / documentation anbd usability of the platform is really great.

idk ... not comparable / much better than most of the quantum-computing hardware startups i know / looked at. of course, its easy if you have "deep pockets" like ibm does ... ;))

ok, back to the quantum platform:

it had a free-tier on the "old" quantum-platform - until july 2025: 10 minutes of compute on a set of machines - back then up to 127 qubits - per month ... no identification necessary / just an email-address.

sadly this "very generous" free-tier was killed of during the transition to the all new "quantum cloud platform" during spring/summer 2025 ...

and it really works like a charm :)

just my 0.02€

You can rent it, but it's basically worthless at this stage.

there's still a long road to commercial applications but today's hardware is simulating quantum systems beyond the scale of classical methods, for example [1]; an interesting line of work opposite to this can be found in those who improve classical methods towards such examples [2], but these are only developed because of the existing quantum hardware

Really though, today's IBM hardware is good fun to play with, eg for generating moderately large GHZ states

[1] https://arxiv.org/abs/2510.26845 [2]https://arxiv.org/abs/2306.14887

Is there anything you can do on a rented QC that you can't do cheaper on a simulated QC on a "classical" CPU/GPU today?

hello,

yes ... especially if you want to execute quantum-circuits which use a lot of qubits.

why!? one approach of the simulation of quantum-computers rely on the so called "state vector" of the machine, and its memory-usage grows exponentially.

for example qiskit AER

* https://qiskit.github.io/qiskit-aer/stubs/qiskit_aer.Stateve...

just as an example:

for 32 qubits, the simulator needs 64 GB RAM

=?> double the RAM for each additional qubit

so: for 36 qubits, the simulator needs 1 TB RAM

:)

so it gets pretty "costly" to do simulations rather quickly ...

just my 0.02€

No. They're a decent playground for prototyping hybrid algorithms but even that is limited. No one has yet published a hybrid algorithm on a rentable QC provider that has better benchmark performance than a modern CPU/GPU implementation.

Drone is just a generic term.

There are more specific terms for specific types of vehicles, and some of those terms have changed over the past few decades.

UGV = unmanned ground vehicle

UAS = unmanned aerial system

UAV = unmanned aerial vehicle

UUV = unmanned underwater vehicle

Etc

> The fact that even they struggle with github actions is a real testimate to the fact that nobody wants to host their own CD workers.

What a weird takeaway

> The world is not moving back to on prem.

Lol, you should tell my customers (that are moving back on prem) that!

You should also tell Microsoft, who just yesterday said they are going back to focusing on local apps.

Your customers are an anecdote, now compare that to the publicly reported numbers from AWS, GCP and Azure where they all say the only thing keeping them from growing more is the chip shortage.

Oh I'm sure they'll continue to have some cloud services, no doubt. But look at VMware for example, even after the insane price increases. Nutanix also seems to be doing quite well. I'm seeing a fair amount of on-prem bare metal k8s too.

Again - anecdotes is not data. We have data. That would be about as silly as me citing my own experience as proof that “everyone is moving to AWS” when I work for a company that is exclusively an AWS partner consulting company.

> Again - anecdotes is not data. We have data.

You have data showing growth in cloud, which I expect and don't disagree with. The data I come across shows this too!

What I disagree with, from my own experiences and all the data I can seem to find online is that the growth rate in repatriation is MUCH higher than the growth in cloud.

It has flipped over the last 3yr.

US Enterprises, Fortune 100, especially. Also a lot of public entities (gov).

"In 2025, repatriation is still generally an upward trend. Data from the end of 2024 showed that 86% of CIOs planned to move some public cloud workloads back to private cloud or on-premises — the highest on record for the Barclays CIO Survey."

"Real examples of cloud repatriation include Dropbox, Adobe, and GEICO. All three companies moved a significant portion of their infrastructure onto public cloud before moving it to a combination of on-premises and hybrid cloud providers."

Noted: SaaS accounts for 46.10% of market revenue, while PaaS is the fastest-growing segment at 21.35% CAGR

Again, anecdotes. I have public company quarterly statements - you have unsourced quotes. You can quote Geico - I can quote Netflix. If on prem was really growing, I wouldn’t expect Intel to be in the shitter and I would expect Capex to be focused on Colo centers not cloud.

Also when I searched for your quotation the very next paragraph was

“ This trend does not represent a rejection of cloud computing. Organizations continue investing heavily in cloud services, with Gartner forecasting that global cloud spending will reach approximately $723 billion by the end of 2025.”

That doesn't dispute what I said, in fact it agrees with what I said. Read it again.

> You have data showing growth in cloud, which I expect and don't disagree with. The data I come across shows this too!

> I go out of my way not to buy products advertised to me

The most likely way to get me to not buy your product is to advertise it to me.

I too deliberately avoid products from ads, especially ones that annoy me. But I'm under no illusion that ads never work on me, "there's no bad publicity" and all. It takes active effort to avoid defaulting to the options you have already been told about and sometimes you're going to slip up. And since about every company advertises it's not like you really have any other option.

> And since about every company advertises it's not like you really have any other option.

I couldn't tell you what brand the clothes I'm wearing right now. I ordered bulk packs from somewhere in Asia.