Live data from Hacker News

An app for M1 Macs that plays the sound of a fan as CPU usage goes up

fanfan.rambo.codes

111–120 of 454 posts

Re: An app for M1 Macs that plays the sound of a fan as CPU usage goes up

#111
post #69

I don't want to download it, is there a clip of the sound anywhere?

> I don't want to download it

In case what you mean is that you don’t want to run it, an alternative: right-click the app, followed by “Show Package Contents”, and navigate to Contents/Resources. You’ll find a couple of WAV files.

Don’t expected pleasant woosh noises, they sound like rough recordings of computer fans.

Re: An app for M1 Macs that plays the sound of a fan as CPU usage goes up

#112
post #65

Earlier quoted context omitted.

Same here, it’s like a freaky experience. I run mostly from the browser but have a couple of things going at the same time. One thing I noticed is the blazing fast typing on the Mac. There is an ever so small lag on windows in perceptible when using it. But, when you type on the Mac you notice it, and the brain just feels good using it. I have no idea if this is a real thing, but it’s similar with scrolling, you touc…

One of the reasons iOS feels smoother than Android is because the render loop of the OS is decoupled from the app. The apps aren’t allowed to introduce jank, so if you’re scrolling a webpage and stuff is loading simultaneously, iOS will be way smoother. I think this is also why they can have such low latency on inputs, for example with the Apple Pencil which is much lower latency than the surface pen or the android s…

>the render loop of the OS is decoupled from the app

Can you elaborate on this? If you do too much work on the main thread in iOS, it's going to hang the UI. Isn't the main thread the "render thread"? Do scroll views have some kind of special escape hatch to get off the main thread for continuing to scroll if the main thread is blocked with loading the content?

Re: An app for M1 Macs that plays the sound of a fan as CPU usage goes up

#113
post #43

This is funny. For the last ten years I've used Mac laptops as my primary machine. Of course the fan noise was a great auditory clue to tell me to check out Activity Monitor/top for rogue processes and help me optimize which tasks took too many resources. I didn't realize how much I relied on that cue until I temporarily switched to a Mac desktop machine during the pandemic when I didn't need to travel. The desktop f…

I remember using hard disk drive sounds for disk usage and or capacitor noises to debug issues. But, I really like the MacBook Air M1 because its so quiet and it helps me concentrate much better and if you are talking to others or recording a talk it is silent. The other thing is that it has no moving parts so it should be very durable.

I use one too and there are still some moving parts. The keyboard keys, the speakers, the display hinge and the Taptic Engine. Those are the parts I'm looking at intently as the ones that will fail on me, especially the hinge.

Re: An app for M1 Macs that plays the sound of a fan as CPU usage goes up

#114
post #25

Pre M1, I've always preferred a PC. When I'm using a laptop, especially doing real work, they heat up, the fans go crazy, the laptop is hot to the touch and everything slows down. It almost makes you anxious. You're wondering if it's about to crash or go on fire. I've always kept a Desktop PC on the go for this reason, a well cooled desktop just doesn't have these issues. With a laptop, I always feel like I'm comprom…

I think this is an Intel "feature". They can't upsell you faster CPU's without trading heat and noise. Glad to see Apple is following a much more sensible approach.

[deleted]

Re: An app for M1 Macs that plays the sound of a fan as CPU usage goes up

#115
post #25

Pre M1, I've always preferred a PC. When I'm using a laptop, especially doing real work, they heat up, the fans go crazy, the laptop is hot to the touch and everything slows down. It almost makes you anxious. You're wondering if it's about to crash or go on fire. I've always kept a Desktop PC on the go for this reason, a well cooled desktop just doesn't have these issues. With a laptop, I always feel like I'm comprom…

I just looked up some benchmarks. Apparently a m1 is 2-4x faster at many tasks than my wife’s gaming desktop from 5 years ago. It’s comparable in many benchmarks to my ryzen cpu as well?

What’s the catch?

Re: An app for M1 Macs that plays the sound of a fan as CPU usage goes up

#116
post #65

Earlier quoted context omitted.

One of the reasons iOS feels smoother than Android is because the render loop of the OS is decoupled from the app. The apps aren’t allowed to introduce jank, so if you’re scrolling a webpage and stuff is loading simultaneously, iOS will be way smoother. I think this is also why they can have such low latency on inputs, for example with the Apple Pencil which is much lower latency than the surface pen or the android s…

>the render loop of the OS is decoupled from the app Can you elaborate on this? If you do too much work on the main thread in iOS, it's going to hang the UI. Isn't the main thread the "render thread"? Do scroll views have some kind of special escape hatch to get off the main thread for continuing to scroll if the main thread is blocked with loading the content?

I believe the point is that the "main thread" for your iOS application, is not the main thread of the OS. They're totally decoupled.

Re: An app for M1 Macs that plays the sound of a fan as CPU usage goes up

#117
post #85

That's pretty hilarious. Until recently I didn't think of the CPU fan as an auditory cue for how hard your system is working. But now I can remember times that excessive fan noise has prompted me to investigate the cause of excessive usage.

Oh, yes. This has been an ongoing problem with "sleep mode", which users think means "off", but isn't really. Some Windows docs for hardware makers indicated that "sleep mode" should stop the fans, to maintain the illusion that the machine is "off". Some machines do that, and some stick to temperature-based fan control, so the fans continue to turn if the machine is warm. Some users then complain that sleep mode does…

I bought a Lenovo P1 Gen 3 a couple of months ago and the fans spin while the machine is sleeping.

I'd love to know if it's crappy thermal design from Lenovo, crappy CPUs from Intel, or Windows sleep mode being too demanding. Maybe it's all three?

Re: An app for M1 Macs that plays the sound of a fan as CPU usage goes up

#118
post #25

Pre M1, I've always preferred a PC. When I'm using a laptop, especially doing real work, they heat up, the fans go crazy, the laptop is hot to the touch and everything slows down. It almost makes you anxious. You're wondering if it's about to crash or go on fire. I've always kept a Desktop PC on the go for this reason, a well cooled desktop just doesn't have these issues. With a laptop, I always feel like I'm comprom…

As a hardware nerd I always kind of like that moment when the CPU starts really working and you hear fans spin way up. The auditory feedback is like a throwback to a more mechanical age, like a manual transmission vehicle where you can judge when to shift by engine speed.

When I replaced all my spinning disks with SSDs and fans with ultra quiet ones I realized just how much I relied on fan noise to signal things. E.g. if my computer isn’t visibly on, the fan/disk noise tells me whether I need to power it on or just wake it. I’ve had to start changing my habits as a result.

Re: An app for M1 Macs that plays the sound of a fan as CPU usage goes up

#119

Wondering if it's just me: I bought an M1 MacBook Air with 8GB of RAM, based on reports saying that RAM management is much more effective than with Intel CPUs. Ever since, I'm really struggling with load management. I typically have Chrome open with 20-30 tabs, plus a couple of Electron apps (Notion, Slack, Google Calendar), and my MacBook frequently slows down to a crawl or gets stuck entirely. Simple commands - "cl…

Can anyone explain to me the psychology of having 30 tabs open? Why not just bookmark the URLs to an ephemeral folder or something? Having more than 10 tabs open is beyond stressful for me, and honestly I can’t see how having more open would make anyone more productive. Really curious to learn about other workflows and excessive tab use is one I’m morbidly curious about.

Re: An app for M1 Macs that plays the sound of a fan as CPU usage goes up

#120
post #65

Earlier quoted context omitted.

Same here, it’s like a freaky experience. I run mostly from the browser but have a couple of things going at the same time. One thing I noticed is the blazing fast typing on the Mac. There is an ever so small lag on windows in perceptible when using it. But, when you type on the Mac you notice it, and the brain just feels good using it. I have no idea if this is a real thing, but it’s similar with scrolling, you touc…

One of the reasons iOS feels smoother than Android is because the render loop of the OS is decoupled from the app. The apps aren’t allowed to introduce jank, so if you’re scrolling a webpage and stuff is loading simultaneously, iOS will be way smoother. I think this is also why they can have such low latency on inputs, for example with the Apple Pencil which is much lower latency than the surface pen or the android s…

This is not entirely accurate. iOS indeed uses a client-server UI model, kind of similar to X11. Along with submitting “widget” hierarchy updates, it also supports submitting “animations”. The downside is that the animation states are not truly accessible by the actual app after it submits them.

The scrolling animation is 99.9% of the time implemented as a client-side animation timer submitting non-animated hierarchy updates to the server. It’s common to have janky scrolling.

Post reply on HN