SPRAD45B July   2022  – December 2024 AM623 , AM625

 

  1.   Abstract
  2.   2
  3.   Trademarks
  4. 1Introduction
  5. 2Processor Core Benchmarks
    1. 2.1 Dhrystone
    2. 2.2 CoreMark®-Pro
    3. 2.3 Fast Fourier Transform
    4. 2.4 Cryptographic Benchmarks
  6. 3Compute and Memory System Benchmarks
    1. 3.1 Memory Bandwidth and Latency
      1. 3.1.1 LMBench
      2. 3.1.2 STREAM
    2. 3.2 Critical Memory Access Latency
    3. 3.3 UDMA: DDR to DDR Data Copy
  7. 4Graphics Processing Unit Benchmarks
    1. 4.1 Glmark2 and Kanzi
    2. 4.2 GFXBench5
  8. 5Summary
  9. 6References
  10. 7Revision History

2.3 Fast Fourier Transform

Fast Fourier Transform (FFT) is a multiply accumulate heavy building block in many applications. A 1024-point single precision floating point complex FFT execution time is shown in Table 2-3. The Arm Cortex-A53 benchmark uses the implementation from Ne10 library, which leverages the Advanced SIMD or NEON acceleration of Cortex A53.

Table 2-3 NE10 CFFT Benchmark
1024 pt float CFFT Execution Time (single thread / core)
Arm Cortex-A53 (1.2GHz) 23 microseconds