SEGGER推出自家的DSP库emVDSP，即将发布
https://blog.segger.com/emvdsp-vs-cmsis-dsp/
支持如下架构：
Cortex-M with DSP and SIMD instructions (v7EM)
Cortex-A with NEON (Advanced SIMD) instructions (v7A, v8A)
Cortex-M with Helium instructions (v8.1M+MVE)
Older Arm cores with the DSP E extension (v5TE)
RISC-V with the Packed SIMD P extension (RV32P, RV64P)
RISC-V with the Vector extension (RV32V, RV64V)
Intel IA32/AMD64 with MMX and Advanced Vector Extensions (AVX, AVX2, and AVX-512)
Portable C code for use on any processor
性能测试：
SEGGER Vector-DSP Library Benchmark
Copyright (c) 2019-2021 SEGGER Microcontroller GmbH
Target: Cortex-A
Compiler: SEGGER cc 11.4.4
Config: VDSP_DEFAULT_UNROLL = 2
Config: VDSP_DEFAULT_PIPELINE = 2
SEGGER VDSP CMSIS-DSP
----------------------------------------------
Function Cycles Rel.SD% Cycles Rel.SD%Rel.Perf
---------------------------------------------------------------
Abs, Q7 2334 0.14 32112 0.01 13.75x
Abs, Q15 2333 0.09 8232 0.01 3.53x
Abs, Q31 2336 0.17 2333 0.14 1.00x
Abs, F32 2593 0.14 2844 0.08 1.10x
---------------------------------------------------------------
Neg, Q7 2335 0.15 37930 0.00 16.24x
Neg, Q15 2334 0.12 36393 0.01 15.59x
Neg, Q31 2334 0.13 2745 0.16 1.18x
Neg, F32 2590 0.14 5151 0.03 1.99x
---------------------------------------------------------------
MinReduce, Q7 1008 0.31 22839 0.02 22.65x
MinReduce, Q15 984 0.41 10809 0.03 10.98x
MinReduce, Q31 972 0.37 3482 0.69 3.58x
MinReduce, F32 1149 0.20 5433 0.36 4.73x
---------------------------------------------------------------
MaxReduce, Q7 1008 0.33 22842 0.01 22.66x
MaxReduce, Q15 980 0.31 10807 0.03 11.02x
MaxReduce, Q31 971 0.34 3454 0.10 3.56x
MaxReduce, F32 1143 0.95 5436 0.30 4.76x
---------------------------------------------------------------
Add, Q7 3230 0.13 53292 0.01 16.50x
Add, Q15 3231 0.11 53805 0.00 16.65x
Add, Q31 3230 0.08 3624 0.07 1.12x
Add, F32 3296 0.13 3605 0.06 1.09x
---------------------------------------------------------------
Add, Scalar, Q7 2532 0.10 36909 0.01 14.57x
Add, Scalar, Q15 2527 0.16 36394 0.00 14.40x
Add, Scalar, Q31 2527 0.17 3107 0.09 1.23x
Add, Scalar, F32 2783 0.13 7191 0.03 2.58x
---------------------------------------------------------------
Sub, Q7 3424 0.11 53294 0.01 15.56x
Sub, Q15 3422 0.07 53807 0.01 15.72x
Sub, Q31 3429 0.08 3623 0.06 1.06x
---------------------------------------------------------------
Mul, Q7 6420 0.07 42033 0.01 6.55x
Mul, Q15 3358 0.12 55341 0.00 16.48x
Mul, Q31 3741 0.10 6960 0.03 1.86x
Mul, F32 3488 0.12 3606 0.08 1.03x
---------------------------------------------------------------
Mul, Scalar, Q7 4759 0.07 38965 0.01 8.19x
Mul, Scalar, Q15 3100 0.14 37425 0.01 12.07x
Mul, Scalar, Q31 2848 0.11 11575 0.02 4.06x
Mul, Scalar, F32 2909 0.15 4385 0.06 1.51x
---------------------------------------------------------------
Mean, Q7 3671 0.09 22594 0.01 6.15x
Mean, Q15 1658 0.23 19050 0.02 11.49x
Mean, Q31 2116 0.17 3618 0.67 1.71x
Mean, F32 1178 0.54 5149 0.12 4.37x
---------------------------------------------------------------
STOP 这个好，免费的吗？ 现在2024年了，还没有发布吗 Superusrss 发表于 2024-3-14 00:42
现在2024年了，还没有发布吗
还没。
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