Differences

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--- sd:emulation_benchmarks [2026/05/16 00:15] – appledog
+++ sd:emulation_benchmarks [2026/05/16 00:24] (current) – appledog
@@ Line 46: / Line 46: @@
 These Pentium-specific traits were exploited via Abrash's hand-tuned ASM (id386.asm) delivered a 3x speedup over 486DX4-100 and AMD/Cyrix 5x86-133 style CPUs, crushing the clones' weaker floating point pipelining and marginalizing them in gaming. Pentium began to dominate the 1996 PC market as Quake's "minimum viable" software 3D benchmark, shifting devs from CPU raster hacks to hardware offload. Next, GLQuake/Voodoo (1996) hit 60+ FPS by rasterizing on GPUs, birthing the 3D acceleration era.
-//Lesson learned, the biggest improvement besides raw MIPS is a good PPU/GPU.//
 == Profiling Experiments
-Taken on an i7-12700k, a basic "unrolled LDA" example executes at 95 MIPS in the WASM version and at 675 MIPS in the C version. However, there's an issue if we go beyond this relative benchmark.
+Taken on an i7-12700k, a basic loop example executes at 55 MIPS in the WASM version and at 550 MIPS in the C version. However, there's an issue if we go beyond this relative benchmark.
 === MIPS isn't useful
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 === Conclusion: CISC vs RISC
-Time spent on the hot path is slow, while time spent in the hot path is fast. That is, just like the WASM version, the C version does best with CISC instructions. MIPS itself, is not as important as it seems. What matters is the quality of the instruction set; even at 1 MIPS, the WASM version can handle over 2,000 sprites per frame at 60fps, utterly destroying even the SNK Neo Geo (1990) in terms of arcade performance.
+Time spent on the hot path is slow, while time spent in the hot path is fast. That is, just like the WASM version, the C version does best with CISC instructions. MIPS itself, is not as important as it seems. What matters most is the quality of the instruction set.
-//Using a RISC-like ISA is only a requirement if you are emulating a particular architecture. It is not a good idea for a fantasy computer in general. A fantasy computer does better with CISC instructions.//