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Why is PS3 emulation so fast: RPCS3 optimizations explained
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Why is PS3 emulation so fast: RPCS3 optimizations explained
Whatcookie
28K subscribers • 2 videos on Hallway
- Recommended by 1 person: 1 on Lobsters.
Advanced. Deep dive for people who know the field.
845K views2 years ago1 recommendation
Systems programmingHardwarePerformance and optimizationCPUs and computer architectureOperating systems
An explanation of how the RPCS3 emulator achieves high performance by optimizing SPU emulation using modern x86 vector instructions like AVX-512.
In this video I explain why PS3 emulation is so fast, and I definitely don't spend half of the video gushing over x86 instructions. I sort of made this video as a response to all the videos with a title along the lines of "why is the PS3 hard to emulate" without actually going into any technical details beyond "the PS3 is complex". My links: twitter.com/whatcookie Support the channel: youtube.com/channel/UCop6aovOTLqHsw2IgrRgYTQ/join Additional reading: RPCS3 blog: rpcs3.net/blog/ My blog on AVX-512 and RPCS3: whatcookie.github.io/posts/why-is-avx-512-useful-for-rpcs3/ RPCS3 youtube channel: youtube.com/@RPCS3_emu FOSDEM video on RPCS3 internals by AlexAltea youtube.com/watch?v=4joCMfTPP4M PS3 hardware overview copetti.org/writings/consoles/playstation-3/ Chapters Intro SPU introduction SPU Xfloat Ninja Gaiden Comparisons Specific SPU FP instructions SHUFB SHUFB performance discussion VGF2P8AFFINEQB path VPERM2B ISA and performance Loads and stores Sleepy Nier ConclusionWhy it's here
1 person recommends thisWhat people say. Recommended for its deep technical dive into low-level CPU instructions and emulator optimization techniques.