draylax Posted April 6, 2023 Share Posted April 6, 2023 No slow booting as is detailed on every other slow NVMe thread. These NVMe SSDs are connected on a Z490 board as PCIe 3.0 x 4 AmorphousDiskMark showing sustained about 3,400 3,200 M bytes/sec for R/W Copying loads of mp4 video files from GoPro, mixed sizes of video files around 1GB to about 4.5GB terminal rsync for the copying rsync -a --progress --stats --human-readable Real world, is not even close to 3,200 M bytes/sec that AmorphousDiskMark results show, slower that SATA theoretical max sustained. What i'm seeing in real life copying: Kingston KC3000 2TB SATA to SATA 220.76M bytes/sec HFS+ to HFS+ NVMe to SATA 226.58M bytes/sec HFS+ to HFS+ SATA to NVMe 232.44M bytes/sec HFS+ to HFS+ NVMe to NVMe 421.05M bytes/sec APFS to HFS+ NVMe to NVMe 412.64M bytes/sec HFS+ to APFS NVMe to NVMe 417.64M bytes/sec APFS to APFS WD SN850X 2TB NVMe to NVMe APFS to APFS (KC3000 to SN850X) 410.18M bytes/sec I'm expecting much higher. Similar for others? Any ideas why so slow? Link to comment Share on other sites More sharing options...
draylax Posted April 8, 2023 Author Share Posted April 8, 2023 Solved. rsync version 2.6.9 installed on macOS is ancient, installed 3.7.5 increased transfer rate to 780.00M bytes/sec. Finder transfers 2.9GB/sec all good 1 Link to comment Share on other sites More sharing options...
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