Synchron Player had previously been showing storage drive read speeds of around 200MB/s to 220MB/s, which seemed ok to me as that's about the best read speed of the internal spinning-platter hard disk. This computer came with High Sierra on its internal 2.12TB Fusion Drive formatted as Journaled HFS+, and the only change I've made is expanding RAM to the max 64GB. I recently added a 1TB T7(Touch) to one of the USB-C ports on my 2017 5K iMac (4.2GHz 4-core i7 7700K). I'm also very puzzled by the Synchron Player's speed readouts. ![]() I have been looking for a decent disk speed tester for macOS which measures the 64k random read speed so that I can verify this independently from the Synchron Player, but am yet to come across one. I had a similar question for Ben from VSL, and he confirmed that the Synchron Player measures the 64k random read speed, whereas the Blackmagic disk speed test measures the sequential read speed (giving a different, far greater value). It doesn't matter, but I found it interesting. Incidentally, the Activity Monitor on my system doesn't show any activity when playing the Synchron Pianos. Should I switch over to APFS? I have APFS on my other drives, so this was an oversight on my part. I wonder if this is because Synchron isn't simply reading a big file from start to finish, unlike a speed test.Īlso, I have the HFS journaled file system. Synchron Pianos shows read speeds of 190. and a 15 inch MacBook Pro (2018). The Black Magic speed test shows read speeds of 500 MB/s.
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