5 ms·

I'm super exicted what will come in this direction after PS5 announcement and Microsoft mentioning Direct Storage. PS5 has a IO chip and extra architecture for

I'm super exicted what will come in this direction after PS5 announcement and Microsoft mentioning Direct Storage. PS5 has a IO chip and extra architecture for decompressing textures (here the context with this gzip accelerator) and more features. Mark Cerny said that they needed this chip because from a CPU ressource usage,it would use all CPU cores. So nvm now are so fast that a io co processor is feasable again.

rasz 6y ago
PC SSD drives started out with buildin compression. This is why most test software has separate "incompressible data" graphs. Its usually something you actually dont want, akin to fake streamer tape capacities/speeds assuming 2x compression. > IO chip and extra architecture for decompressing textures you dont want uncompressed textures in your GPU memory, compressing DXT compressed textures is not idea to say the least, you can count on 30-50% compression ratio, not the marketing 2x peak number Sony was throwing around >would use all CPU cores is marketing exaggeration, LZ4 decompression can achieve ~3GB/s per core. How it is today: https://www.jonolick.com/home/oodle-and-ue4-loading-time https://www.jonolick.com/home/oodle-and-ue4-loading-time
- battery423 6y ago
  I do have seen issues on my machines i would highly put in the direction of "nvm got shitty fast really quick and something inbetween is weird, we need to do something". My feeling is, that what Sony is now doing, goes in that direction. I'm highly curious and hopefull. I will read your posted blog, looks interesting. Lets see what will arrive in the industry at the end of the day.
- battery423 6y ago
  When i look at his data, its capped and the additional PC transfer speed of over 512mb/sec vs hitting the speed limit much sooner, does show that something is missing.
  - rasz 6y ago
    Diminishing returns. Cap is most likely caused by the graphic engine fixed costs, at some point you cant use more speed no matter what without rewrite (initialization, deserialization etc).
jjoonathan 6y ago
DMA units are back, baby!
fomine3 6y ago
Revisiting LTO tape.

rasz 6y ago

PC SSD drives started out with buildin compression. This is why most test software has separate "incompressible data" graphs. Its usually something you actually dont want, akin to fake streamer tape capacities/speeds assuming 2x compression. > IO chip and extra architecture for decompressing textures you dont want uncompressed textures in your GPU memory, compressing DXT compressed textures is not idea to say the least, you can count on 30-50% compression ratio, not the marketing 2x peak number Sony was throwing around >would use all CPU cores is marketing exaggeration, LZ4 decompression can achieve ~3GB/s per core. How it is today: https://www.jonolick.com/home/oodle-and-ue4-loading-time https://www.jonolick.com/home/oodle-and-ue4-loading-time

battery423 6y ago
I do have seen issues on my machines i would highly put in the direction of "nvm got shitty fast really quick and something inbetween is weird, we need to do something". My feeling is, that what Sony is now doing, goes in that direction. I'm highly curious and hopefull. I will read your posted blog, looks interesting. Lets see what will arrive in the industry at the end of the day.
battery423 6y ago
When i look at his data, its capped and the additional PC transfer speed of over 512mb/sec vs hitting the speed limit much sooner, does show that something is missing.
- rasz 6y ago
  Diminishing returns. Cap is most likely caused by the graphic engine fixed costs, at some point you cant use more speed no matter what without rewrite (initialization, deserialization etc).

jjoonathan 6y ago

DMA units are back, baby!

fomine3 6y ago

Revisiting LTO tape.