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M1 Pro First Impressions: Core Management and CPU Performance

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Re: M1 Pro First Impressions: Core Management and CPU Performance

#91

Post by jquery »

mikevm wrote: post #76
AnthonyMouse wrote: post #53

Earlier quoted context omitted.

> With that said, there is a huge M1 hype on HN. The main thing driving this is that people are comparing a new M1 to their Intel Mac laptops with processors from ~2016 and then naturally it's a marked improvement because it's being compared to a five year old machine. You compare them to a modern Intel or AMD system and they're competitive. They win some and lose others. Much was made about the M1 Max taking the sin…

Looking at pure performance without power usage is meaningless for these machines.

Power usage doesn’t scale linearly, at all. Mobile Ryzens are very competitive with the M1 watt for watt (trading blows with Ryzen winning sometimes). Seems you’ve fallen for Apple marketing again.

Re: M1 Pro First Impressions: Core Management and CPU Performance

#92

Post by blitzar »

ohgodplsno wrote: post #89
f6v wrote: post #70

Earlier quoted context omitted.

> You compare them to a modern Intel or AMD system I compared my 2014 MBP to 2019 MBP and there was no marked difference. It was running hot and eating battery very fast. 2019 Intel Mac and 2020 M1 Mac are two completely different animals. Also, the price drop for a better-performing machine was jaw-dropping.

Apple selling you mid-range-3-year-old-intel CPUs (that are known to thermal throttle quite badly) at 50% markup, then robbing you slightly less hard on a product is not jaw dropping, it's merely you falling for their marketing three times in a row.

Out of curiosity which laptop should I be looking at if I dont want to be robbed by the apple on a M1?

Re: M1 Pro First Impressions: Core Management and CPU Performance

#93

Post by matthewmacleod »

capableweb wrote: post #82
yeldarb wrote: post #12

Mine just arrived today and I'm blown away. After upgrading our app's dependency chain to run native arm64 builds (which took a bit of googling) webpack's incremental build time on our app is down to 116ms from 983ms on my 2016 Macbook Pro. Over 8x faster. Our Tensorflow.js (webgl) models that previously ran about 8fps in the browser are now running at the camera's native 30fps framerate. (Similar to my desktop 2080t…

Rather than switching hardware, you can also switch out the software to more efficient one. esbuild would make your builds go sub-ms even without needing a M1 CPU, also worth a try if you cannot switch to the newest hardware, so I guess this comment is for poor people.

esbuild is not simply “more efficient webpack” so that’s quite misleading.

Re: M1 Pro First Impressions: Core Management and CPU Performance

#95

Post by nvarsj »

zibzab wrote: post #20
aroman wrote: post #15

In my usage, which is game development with Unity, I haven't really been particularly impressed with the performance improvements on my 10-core M1 Pro machine. I'm sure most of the blame is due to Unity (the app is a buggy mess), but it definitely took the initial "wow this is magic" down to reality very quickly for me.

Unity is slow on any machine. With that said, there is a huge M1 hype on HN. It reminds me of the 64-bit ARM hype when someone benchmaked encryption (because ARMv8 has AES instructions) and everyone were made to belive that the new iPhone would be 3-4 times faster.

Don't you think it's deserved? I haven't seriously used a macbook in nearly a decade now but the M1 is making me consider buying one. Desktop class performance in a laptop with very long battery life is just amazing. The only thing stopping me is OS X. Using it is super painful for me - it doesn't even have basic snap to edge or split window functionality. My workflow is heavily dependent on tiling WMs and it would affect my productivity.

Re: M1 Pro First Impressions: Core Management and CPU Performance

#96

Post by seniorivn »

wmf wrote: post #28
dev_tty01 wrote: post #16

Earlier quoted context omitted.

Asymmetric multiprocessing has been a big topic of research for many, many years. https://scholar.google.com/scholar?hl=en&as_sdt=0%2C33&q=asy...

Yeah, but I'd bet 90% of that research makes wacky assumptions that don't apply to real processors. When real hardware becomes available you start over from scratch. (Source: I am a former CS researcher.)

isn't arm big little architecture the norm in a wildly used processors for a decade or so?

Re: M1 Pro First Impressions: Core Management and CPU Performance

#97

Post by deagle50 »

Aeolun wrote: post #2

I’m not sure how to interpret this, even after reading the article. Is any reason given for why the last 4 Performance cores get only a limited amount of work?

They are in a separate, power and frequency gated cluster with its own L2. You'd want to keep that cluster in a low power state as much as possible.

Re: M1 Pro First Impressions: Core Management and CPU Performance

#98

Post by killingtime74 »

blitzar wrote: post #92
ohgodplsno wrote: post #89

Earlier quoted context omitted.

Apple selling you mid-range-3-year-old-intel CPUs (that are known to thermal throttle quite badly) at 50% markup, then robbing you slightly less hard on a product is not jaw dropping, it's merely you falling for their marketing three times in a row.

Out of curiosity which laptop should I be looking at if I dont want to be robbed by the apple on a M1?

Any Ryzen one

Re: M1 Pro First Impressions: Core Management and CPU Performance

#99

Post by throwntoday »

lordnacho wrote: post #40
yeldarb wrote: post #12

Mine just arrived today and I'm blown away. After upgrading our app's dependency chain to run native arm64 builds (which took a bit of googling) webpack's incremental build time on our app is down to 116ms from 983ms on my 2016 Macbook Pro. Over 8x faster. Our Tensorflow.js (webgl) models that previously ran about 8fps in the browser are now running at the camera's native 30fps framerate. (Similar to my desktop 2080t…

Got mine last week and not only is it faster, the power usage is crazy good. I took it to town for the first time yesterday, thought I'd do some coding between meetings for a few hours. Battery is still over 90%. I actually don't know what the thing sounds like with fans on, because it hasn't happened yet. My old machine from 2019 would have been down to half power at least, and the fans used to come on with just two…

Same here, spent two hours programming on the train and it went down by about two percent.

So glad I went with the spec I did, all the power I need with room to grow.

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