How M1 Macs feel faster than Intel models: it’s about QoS • Hacker News Board

Re: How M1 Macs feel faster than Intel models: it’s about QoS

#391

Post by wildrhythms » Tue, May 18, 2021, 2:58 AM UTC

yurishimo wrote: post #309

deergomoo wrote: post #280

Earlier quoted context omitted.

The heat and noise was what led me to sell my 16" MBP in favour of a 13" Air. I was working from home the whole time I owned it and my partner could often hear it from a different room. No idea how anyone works in an office with one of those things without irritating the hell out of their coworkers.

Most likely because everyone already wears headphones to isolate themselves. There is outside traffic noise and aircon to compete with, as well as general drone of conversations. It's only really an issue in environments that are already quiet.

I can assure you the 16-inch Intel MBP is loud enough to draw attention in any open-air office space. Pre-COVID WFH life, I would have to close out my IDE, browser tabs, Photoshop, everything when I had to go into a meeting room because it was embarrassing to hear that laptop whirr its fans. Now I have an M1 for personal use, no fan, heat issues gone. Can't wait to ditch the 16-inch Intel for work, I will accept the smaller screen size.

Re: How M1 Macs feel faster than Intel models: it’s about QoS

#392

Post by wildrhythms » Tue, May 18, 2021, 3:03 AM UTC

CyberDildonics wrote: post #210

varispeed wrote: post #37

People say that Ryzen is faster - but if it has a fan, then this is a deal breaker. I have become so annoyed by fans I often just stop work when they start whirling, go make a coffee etc. It seems like M1 is now the only laptop that can let you work in silence and be productive.

If fans are keeping you from working it might be time for water cooling or ear plugs.

I could appreciate this take if it wasn't for constantly getting side-eyed in a meeting room while my 16-inch MBP is blasting off because I forgot to close out a twitch.tv browser tab.

Re: How M1 Macs feel faster than Intel models: it’s about QoS

#393

Post by valbaca » Tue, May 18, 2021, 3:14 AM UTC

gketuma wrote: post #296

valbaca wrote: post #288

I have a 2020 Intel Macbook from work and a M1 Macbook for personal use. Granted I put my work laptop under more load (compiling, video chats at work) but it just feels like a normal laptop. I feel it take its time loading large programs (IDEs) and the fan clicks on when I'm doing big compiles. I use my personal laptop for occasionally coding, playing games, and also video chats. But the M1 feels amazing. It's fast,…

"I never hear the fan. Even playing Magic Arena AND a Parallels VM runs silent." That is because there is no fan.

Sorry if there was confusion.

It's an M1 Macbook Pro, so there is a fan, but I've yet to hear it.

My previous laptop was an Intel Macbook Air (2019?).

Re: How M1 Macs feel faster than Intel models: it’s about QoS

#394

Post by sinsterizme » Tue, May 18, 2021, 3:49 AM UTC

otabdeveloper4 wrote: post #120

kryps wrote: post #102

Earlier quoted context omitted.

Nope, pure compile time on a Core i7-10750H with Windows and Rust 1.52.1, antivirus disabled. WSL did not make much of a difference though (29 seconds).

> Windows There's your problem. Even Microsoft concedes that Windows is legacy technology now.

You must be joking? If not, provide us with a source

Re: How M1 Macs feel faster than Intel models: it’s about QoS

#395

Post by fomine3 » Tue, May 18, 2021, 4:12 AM UTC

bscphil wrote: post #372

adriancr wrote: post #186

Earlier quoted context omitted.

thanks, problem solved - now it's 1 minute...

Wow. The fact that my Sandy Bridge laptop from 2011 does it in only 1:41 is pretty indicative of how badly processor improvements stalled out last decade. My processor (like yours, 4c8t): https://ark.intel.com/content/www/us/en/ark/products/52219/i...

You compare TDP 45W CPU vs 15W. I think this is great improvement. (But latter one is also 25W cTDP and turbo boost provides more power, many factors depends on how the laptop implemented)

Re: How M1 Macs feel faster than Intel models: it’s about QoS

#396

Post by fomine3 » Tue, May 18, 2021, 4:40 AM UTC

lupire wrote: post #224

defaultname wrote: post #188

Interesting, enjoyable read. The conclusions seem a bit off though -Low QoS tasks are limited to certain cores. This doesn't necessitate efficiency cores (though it makes sense if you want power efficiency in a mobile configuration) and they could as easily be performance cores. The core facet is that the OS has core affinity for low priority tasks and quarantines them to a subset of cores. And it has properly config…

If it has nothing to do with ARM, why doesn't Mac do it at similar speed on Intel?

Because there are no Intel Mac with heterogeneous cores. Lakefield is first CPU with LITTLE cores, but not available for mac.

Re: How M1 Macs feel faster than Intel models: it’s about QoS

#397

Post by fomine3 » Tue, May 18, 2021, 4:42 AM UTC

How it scheduled is interesting, but I wonder is the feeling really related to the core scheduling.

Re: How M1 Macs feel faster than Intel models: it’s about QoS

#398

Post by fomine3 » Tue, May 18, 2021, 4:43 AM UTC

bjoli wrote: post #78

nikanj wrote: post #74

My 16 inch pro Intel is plenty fast - for the first 45 seconds before thermal throttling kicks in. I have a feeling the M1 is faster because it can actually do work for more than just the briefest bursts

Apples intel MBP thermals are pretty abysmal wrt noise. My off brand 7th gen i7 sounds about the same as my colleagues similarly species MBP, but never throttles. There were even people saying they deliberately sabotaged their intel thermals to make the up and coming M1 look better.

I don't believe the conspiracy, but as a result, bad thermal designs works as great advertisement for M1.

Re: How M1 Macs feel faster than Intel models: it’s about QoS

#399

Post by dustyharddrive » Tue, May 18, 2021, 5:07 AM UTC

artursapek wrote: post #244

simondotau wrote: post #152

Earlier quoted context omitted.

It’s amazing how much of a dumpster fire the butterfly keyboard was, but perhaps more bewilderingly how long they persisted with it. That keyboard might well have done more than any other product design decision in the last decade to push people away from the Mac platform.

I think it did, and the touch bar was a close second. Thankfully, whoever was in charge of those decisions seems to have lost decision-making power and Apple has walked back both.

the touch bar still ships with every current-gen MBP though; the Air never had one

Re: How M1 Macs feel faster than Intel models: it’s about QoS

#400

Post by Rhedox » Tue, May 18, 2021, 6:45 AM UTC

_kbh_ wrote: post #375

rsfinn wrote: post #322

Earlier quoted context omitted.

It can't run Intel-based OSs or VMs, of course, but the latest version of Parallels Desktop runs ARM-based Linux guests on M1 Macs, as well as the Windows 10 ARM preview. (VMware has implied that the next release of Fusion will support Apple silicon as well.)

QEMU already supports x86_64 on Apple silicon. It was just slow last time I checked not sure of the performance now.

As far as I know, besides the generating slow code, qemu also does not support multi threading when emulating strong memory ordering architectures (x86) on weak hosts (ARM).