It really does sound like you're saturating the usb bus. Are you sure you're comparing against real world performance and not technical/theoretical? On Mon, Aug 8, 2016 at 11:30 AM, Matthias Bodenbinder <matthias@xxxxxxxxxxxxxx> wrote: > Hello Christoph, > > based on your feedback I made another test. The USB HD performance seems to be ok (see my other reply). But anyways I made a test with recording directly to the Flash SD card. And that works pretty well. 15 min without issue. > > So it looks like it is indeed an issue with USB on the Raspberry PI 2. Any idea how to solve that? > > Matthias > > > Am 08.08.2016 um 11:10 schrieb C.Scheeder: >> Hi, >> it meuns your system is not able to process all the data received in time. >> where do you write your recordings? >> I guess its a usb-harddisk connected to your raspi, correct? >> It's probably just to slow to write all the data vdr throws at it. >> Or your usb-bus is saturated with all the data flowing in from your receiver and back out to the harddisk. >> Christoph >> >> Am 07.08.2016 um 16:34 schrieb Matthias Bodenbinder: >>> One more hint to the problem. >>> >>> Another test with recording Arte HD gives the following output in user.log: >>> >>> Aug 7 16:31:14 raspberry vdr: [28148] timer 1 (5 1503-1655 'Galaxis Milchstraße') set to event Son 07.08.2016 15:05-16:45 (VPS: 07.08. 15:05) 'Galaxis Milchstraße' >>> Aug 7 16:31:19 raspberry vdr: [6438] i/o throttle activated, count = 1 (tid=6438) >>> Aug 7 16:31:22 raspberry vdr: [6438] buffer usage: 70% (tid=6448) >>> Aug 7 16:31:24 raspberry vdr: [6438] buffer usage: 80% (tid=6448) >>> Aug 7 16:31:26 raspberry vdr: [6438] buffer usage: 90% (tid=6448) >>> Aug 7 16:31:29 raspberry vdr: [6438] buffer usage: 100% (tid=6448) >>> Aug 7 16:31:29 raspberry vdr: [6438] ERROR: 1 ring buffer overflow (1 bytes dropped) >>> Aug 7 16:31:35 raspberry vdr: [6438] ERROR: 26189 ring buffer overflows (4923532 bytes dropped) >>> Aug 7 16:31:41 raspberry vdr: [6438] ERROR: 32283 ring buffer overflows (6069204 bytes dropped) >>> Aug 7 16:31:47 raspberry vdr: [6438] ERROR: 36593 ring buffer overflows (6879484 bytes dropped) >>> >>> >>> What does that mean? >>> >>> Matthias >>> >>> _______________________________________________ >>> vdr mailing list >>> vdr@xxxxxxxxxxx >>> https://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr >>> >> >> >> _______________________________________________ >> vdr mailing list >> vdr@xxxxxxxxxxx >> https://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr > > > _______________________________________________ > vdr mailing list > vdr@xxxxxxxxxxx > https://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr _______________________________________________ vdr mailing list vdr@xxxxxxxxxxx https://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr
