I've been building a new VEP7 template for over a week now - Synchron mostly, several Kontakt 6 and a few VIPros, all fed from the T7 - and I'm running increasingly large chunks of score for testing. excuse me? Well the nice big fat difference in Synchron preset download times tells a very different story. So, Synchron speed readout says the T7 SSD is a bit slower than the iMac's hard disk drive. after loading from T7, Synchron Player speed readout showed only 202.7 MB/s. Wow! Over 11 times faster!Īfter loading from the internal HDD Synchron speed showed 259MB/s. Timed-test results: Internal HDD:- 9 mins 59 sec External T7:- 53 sec. The tests were run in LPX10.4.8 which was completely empty except for a single Synchron Player plugged into an instrument strip audio buffer set at 256. Each time I ran the test after a reboot so nothing was cached in RAM, and I told Spotlight not to index the T7. I didn't play anything, just wanted the Synchron Player to measure speed while loading the preset. Then I compared the times taken to load the SYDimStr Violins1/Full/All Players preset (3.1GB) from internal HDD, and then from external T7 (4 threads assigned to loading, 4096 preload). Quite a bit less than Samsung's quoted max speeds as I expected, but not bad. ![]() I tested the T7's sequential speed with the Black Magic app's 1GB stress test:– 907MB/s read, 833MB/s write. Then when, to my horror, I saw that after loading a big SY Dimension Strings preset from the T7 into Synchron Player, the speed readouts were only around 190MB/s, I reformatted the T7 to Journaled HFS+. But Synchron Player speed readouts were still pretty much the same. 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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