On Thu, 30 Nov 2017 18:21:43 +0100 (CET) "Jeanette C." <julien@xxxxxxxxxxx> wrote: >Nov 30 2017, Peter has written: >Dear Peter, >... >> this looks indeed pretty slow, is it an external usb-2 drive? >No, it's an internal S-Ata drive, apparently a SAMSUNG HD154UI. >> You may perform a simple check: >> >> sudo hdparm -tT /dev/sda >For cached reads this averages around 1200 MB/Sec, for buffered reads >around 108 MB/Sec. I didn't find an option to test the writing speed. As >a write test, I tried this: >dd if=/dev/zero of=out.file bs=1M count=100 >with a result of around 560MB/Sec >> If your are just recording, can you increase the buffer length in jack? >I could, but I already have it a period size of 256. At 512 I started to >get a noticeable delay. With cards that can potentially go down to 64 >samples, I feel a - perhaps unreasonable - hesitation to set the period >higher. Is this very unreasonable? >... > >Best wishes, > >Jeanette Finances permitting, I would always suggest an SSD for lots of audio I/O, but if that's not possible maybe a second hard drive, and use whichever is the faster of the two for writes and the other for reads (writes to magnetic media take longer than reads). HTH -- Will J Godfrey http://www.musically.me.uk Say you have a poem and I have a tune. Exchange them and we can both have a poem, a tune, and a song. _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx https://lists.linuxaudio.org/listinfo/linux-audio-user
