linux-system Pi 4 fan ARMv7 rev 3 testing on Raspbian 10 via the Phoronix Test Suite. Pi 4 fan: Processor: ARMv7 rev 3 @ 1.50GHz (4 Cores), Motherboard: BCM2711, Memory: 4096MB, Disk: 32GB SC32G, Monitor: U2879G6 OS: Raspbian 10, Kernel: 5.4.74-v7l-Martin-s3408062+ (armv7l), File-System: ext4, Screen Resolution: 3840x2160 PyBench 2018-02-16 Total For Average Test Times Milliseconds < Lower Is Better Pi 4 fan . 5247 |============================================================== PostgreSQL pgbench 13.0 Phoronix Test Suite v5.2.1 TPS > Higher Is Better Pi 4 fan . 47 |================================================================ OpenSSL 1.1.1 RSA 4096-bit Performance Signs Per Second > Higher Is Better Pi 4 fan . 97.07 |============================================================= Sudokut 0.4 Total Time Seconds < Lower Is Better Pi 4 fan . 65.22 |============================================================= GnuPG 1.4.22 2GB File Encryption Seconds < Lower Is Better Pi 4 fan . 76.05 |============================================================= FFmpeg 4.0.2 H.264 HD To NTSC DV Seconds < Lower Is Better Pi 4 fan . 47.96 |============================================================= LAME MP3 Encoding 3.100 WAV To MP3 Seconds < Lower Is Better Pi 4 fan . 42.45 |============================================================= dcraw RAW To PPM Image Conversion Seconds < Lower Is Better Pi 4 fan . 357.90 |============================================================ LZMA Compression 256MB File Compression Seconds < Lower Is Better Pi 4 fan . 1043.44 |=========================================================== Parallel BZIP2 Compression 1.1.12 256MB File Compression Seconds < Lower Is Better Pi 4 fan . 69.15 |============================================================= C-Ray 1.1 Total Time - 4K, 16 Rays Per Pixel Seconds < Lower Is Better Pi 4 fan . 694.12 |============================================================ GraphicsMagick 1.3.33 Local Adaptive Thresholding Iterations Per Minute > Higher Is Better Pi 4 fan . 17 |================================================================ GraphicsMagick 1.3.33 HWB Color Space Iterations Per Minute > Higher Is Better Pi 4 fan . 79 |================================================================ GNU GMP GMPbench 6.1.2 Total Time GMPbench Score > Higher Is Better Pi 4 fan . 493.62 |============================================================ PostMark 1.51 Disk Transaction Performance TPS > Higher Is Better Pi 4 fan . 15 |================================================================ Threaded I/O Tester 20170503 64MB Write - 32 Threads MB/s > Higher Is Better Pi 4 fan . 0.35 |============================================================== Threaded I/O Tester 20170503 64MB Read - 32 Threads MB/s > Higher Is Better Pi 4 fan . 1745.72 |=========================================================== Dbench 4.0 12 Clients MB/s > Higher Is Better Pi 4 fan . 56.89 |============================================================= SQLite 3.30.1 Timed SQLite Insertions Seconds < Lower Is Better Pi 4 fan . 135.22 |============================================================