PS5 architecture

PS5 architecture

Some interesting tidbits here – but those of us familiar with the technology actually see that they’re borrowing a good bit of their core tech from current PC technology. It’s worth watching this video, then watching the one at the bottom of this posting to cut through the marketing spin and understanding.

  • Storage (5:05)
    • 825GB of SSD storage that runs at 5.5GB/s on a 12 channel PCIe 4.0 interface.
    • Dedicated Rad Game Tools Kraken decompressor hardware for optimized loading.
    • Dedicated DMA controller and memory mapper to offload the copying of resources directly to memory
    • Coherency hardware to prevent GPU data flushes.
    • All this happens invisibly to the developer. You simply point to where you want a resource to be loaded and the loading engine hardware does all the work for you.
    • Allowing external hard drives and 3rd party SSD’s
  • GPU (23:50)
    • AMD RDNA 2 based GPU running up to 2.23GHz. 36 compute units. 10.28 Teraflops. 16GB of DDR6 memory running at a bandwidth of 448GB/s.
    • Xbox Series X = AMD RDNA 2 – 52 CU’s at 1.825GHz
    • Likely 36 RDNA 2 EU’s (CU’s)
    • Geometry engine – sounds almost identical to mesh/geometry shader pipelines that have existed for some time.
    • Ray Tracing – basically the same as what will be available on PC
    • They prioritize higher frequency than more CU’s since higher frequency . Therefore, their GPU will run continuously in boost mode setting a specific power level and let frequency go up and down.
    • Instead of basing performance on CPU temp or ambient temp – which leads to uneven performance in varying temperature environments – they use CPU and GPU power to shift compute back and forth between CPU and GPU. See AMD SmartShift. Overall power stays constant but can shift back and forth between CPU/GPU via variable frequencies.
    • The most fascinating part is that workloads go through a ‘model SOC’ that defines and sets the realtime power and performance characteristics – producing the exact same clock timings on every PS5. This performance is VERY reproducible and hence games should perform the same on any PS5 whether its running in a fridge or in the desert. This system relies upon the special cooling solution for the platform.
  • CPU
    • AMD Zen 2 CPU capped at 3.5 Ghz – 8 physical cores/16 threads
    • XBox Series X = Zen 2 CPU at 3.8GHz – 8 physical cores with SMT
  • Audio
    • Want to use the 3D audio lessons they learned with Playstation VR for ALL devices – from mono, stereo, headsets, sound bars, to full 5.x and 7.x surround systems.
    • Unique HRTF to process and give 3D locality information to the audio playback = Tempest 3D Audiotech engine. Engine can even handle moving sources.
    • Will provide 5 different HRTF’s but are considering the possibility of taking pictures/video of your ears to model your HRTF.
  • Backwards Compatibility (23:70)
    • Expecting most of the top 100 PS3 titles to work on PS4

Here’s another excellent video that does a better job cutting through the hype and pointing to the underlying technology they’re likely utilizing.

Rotary dial smart phone

Rotary dial smart phone

Justine is a woman after my own heart. Evidence shows that our world of non-stop social media is actually detrimental to your mental health – and especially the mental health of young people.

But before you call her a Luddite, know that she develops instrumentation for cosmology and astrophysics at a national lab on the east coast. I develop software at a fortune 50 company and totally agree.

I wanted to make my own phone because I was sick of other options. I don’t like smart phones. I don’t like texting. I wanted something that would be a function phone that would be entirely mine and as tactile as possible while having better reception.

I don’t like modern smartphones because they facilitate this culture of hyper connectivity as well as being super finicky. It cannot text – and that’s by design.

Star Wars Trilogy as radio drama

Star Wars Trilogy as radio drama

I love driving and doing chores while listening to radio dramas and audiobooks.

Back in the ’80s NPR produced a series of broadcasts that retold the original Star Wars trilogy as a radio drama. Using original audio recordings of the series, combined with movie music and sound effects, Nigel Langes compiled all of the episodes into a playlist of three videos, running about 11 hours in total.

CRT instruments

CRT instruments

Japanese electro-punk group Electronicos Fantasticos is known for making music with unusual instruments. In this clip, musician Ei Wada shows off an electronic guitar known as the “CRTelecaster” that uses feedback created from the screen of an old CRT television set to produce sounds.

Here’s a concert they made with an electric fan harp, CRT-TV Drums, air conditioner harp, and other strange creations.

Find out more on their website:

https://www.electronicosfantasticos.com

Beating splosh-kaboom minigame in Legend of Zelda: Wind Waker

Beating splosh-kaboom minigame in Legend of Zelda: Wind Waker

It took them about 10 years to build this tool, but here it is. How it helps you win is even more fascinating than the minigame. It’s a beautiful example of how a computer scientist would break down and solve a problem.

I think I might use this question in future interviews…

Unreal engine 5

Unreal engine 5

Simply astounding – really looking forward to reading how they did this.

What if we flipped things on their head and had more triangles than pixels on the screen? How would that engine work…

The gig economy is unhealthy

The gig economy is unhealthy

Patrick Willems does a great reflection on Kiki’s Delivery Service and how it speaks to many of the issues that small, independent content creators encounter.

I remember in the late 2000’s hearing tons of young people never wanting to work at some ‘stodgy’ old company that made you work 9-5, come into actual offices, etc. The gig economy is where it’s at! Work whenever and wherever you want!

Fast forward a bit, and we’re see the problems with the gig economy. Gig jobs have very little security, often lack basic benefits like medical, 401k, retirement contributions, stock plans, etc. As time has shown, these jobs have increasingly become a race to the bottom. A gig worker can be replaced by countless others doing the same task easily and efficiently. Anything you can do, there’s almost certainly someone out there that can do it cheaper.

On top of that, we’re increasingly seeing streaming stars burning out, suffering mental health issues, taking breaks and even calling it quits.

Another sad reality is that the promise of working whenever and wherever you want has actually turned out that you work ALL the time in my circle of friends that tried it. You are constantly connected online and need to constantly be doing your job, along with the additional job of selling and branding yourself. You’re doing 2 jobs at the same time. My gig friends were always on their phones and laptops, even when out supposedly having a good time.

In the end, all those friends of mine that did gig economy jobs have quit and joined established companies. It turns out, ONLY working 9-5, M-F means you have time for family and weekend fun. It means you can have kids. It means you know the mortgage will get paid each month. It means retirement, benefits, and exposure to professional interactions, equipment, and advancements you can’t have as a small independent.

collywood house – sweeping views across los angeles

collywood house – sweeping views across los angeles

Olson Kundig designed this high-tech west hollywood retreat to take in sweeping views across los angeles, from the san gabriel mountains to the pacific ocean. Located just above the sunset strip, the residence offers spectacular views from all parts of the house, while taking advantage of the climate of southern california. as they client enjoys spending time outdoors, the architects sought to blur the boundaries between internal and external space — encouraging outdoor living as much as possible.

olson kundig's hillside 'collywood house' presents sweeping views across los angeles
olson kundig's hillside 'collywood house' presents sweeping views across los angeles
image+by+nic+lehoux
image+by+nic+lehoux
olson kundig collywood house
olson kundig's hillside 'collywood house' presents sweeping views across los angeles
olson kundig's hillside 'collywood house' presents sweeping views across los angeles
olson kundig's hillside 'collywood house' presents sweeping views across los angeles
image+by+nic+lehoux