Dropouts on 192k Qobuz content with Linn players (ref#4MG0WV)

Topic was previously explored a year ago here inconclusively. New data this time.

I have recently noticed that interacting with the Roon control (eg looking for next album to play) seems to trigger dropouts. I can also get long response times eg 10-30 seconds to load an album page from Qobuz or the page can hang at “Loading album…”. Clicking on “Qobuz” can take 10-15 seconds to fill the page (is this normal?).

I therefore wonder whether the NUC running ROCK is at a limit when it tries to stream in Qobuz and push out Songcast. It is an Intel NUC7i7BNB, 3.5GHz, Crucial 8GB memory, 64Gb Sunbow M2 SSD.

Unfortunately ROCK does not provide any diagnostic tools to look at memory pressure, CPU load, disk errors, or temperature. Or is there somewhere I’ve not looked? Would a hardware problem with the NUC lead to the symptoms described?

Problem is intermittent - sometimes it can be hours before something goes wrong, then it will be every 30 seconds or so. And sometimes it stops the track altogether.

I have almost always seen this only on Qobuz streams but have today also encountered it on a 192k file played locally too.

I’ve seen this in the log during a dropout:

12/07 17:05:46 Trace: [Broker:Media] [dbperf] flush 0 bytes, 0 ops in 42 ms (cumulative 35316704 bytes, 14560 ops in 44545 ms)
12/07 17:05:47 Trace: [75] [Study] [Lossless, 24/192 QOBUZ FLAC => 24/192] [24% buf] [PLAYING @ 0:01/7:23] Suite : Judy Blue Eyes - Crosby, Stills & Nash
12/07 17:05:48 Info: [Broker:Media] [library] saved recent ProfileId=51e4de2a-5ec7-4f62-8999-030012de35a1 Time=12/07/2024 17:05:48 DataType=album Type=long_nav MetadataId=411001 ContentId=411001 LibraryId=1449007 Text= Genre=
12/07 17:05:52 Warn: [94] FTMSI-B-OE qo/A086CA74: poor connection kbps:5328.0 (min:6146.0)
12/07 17:05:52 Trace: [Broker:Transport] [Study] [Lossless, 24/192 QOBUZ FLAC => 24/192] [12% buf] [PLAYING @ 0:07/7:23] Suite : Judy Blue Eyes - Crosby, Stills & Nash
12/07 17:05:55 Debug: [75] [prebuffer] sleeping in read -- this isn't good
12/07 17:05:56 Debug: [75] [prebuffer] sleeping in read -- this isn't good
12/07 17:05:56 Debug: [75] [prebuffer] sleeping in read -- this isn't good
12/07 17:05:57 Debug: [75] [prebuffer] sleeping in read -- this isn't good
12/07 17:05:57 Debug: [75] [prebuffer] sleeping in read -- this isn't good
12/07 17:05:57 Trace: [Broker:Transport] [Study] [Lossless, 24/192 QOBUZ FLAC => 24/192] [1% buf] [PLAYING @ 0:12/7:23] Suite : Judy Blue Eyes - Crosby, Stills & Nash
12/07 17:05:57 Debug: [75] [prebuffer] sleeping in read -- this isn't good
12/07 17:05:58 Debug: [75] [prebuffer] sleeping in read -- this isn't good
12/07 17:05:58 Debug: [75] [prebuffer] sleeping in read -- this isn't good
12/07 17:05:58 Debug: [75] [prebuffer] sleeping in read -- this isn't good
12/07 17:05:58 Info: [7] [stats] 8580mb Virtual, 3686mb Physical, 1318mb Managed, 388 Handles, 85 Threads
12/07 17:05:58 Debug: [75] [prebuffer] sleeping in read -- this isn't good
12/07 17:05:59 Debug: [75] [prebuffer] sleeping in read -- this isn't good
12/07 17:05:59 Debug: [75] [prebuffer] sleeping in read -- this isn't good
12/07 17:05:59 Debug: [75] [prebuffer] sleeping in read -- this isn't good
12/07 17:06:00 Debug: [75] [prebuffer] sleeping in read -- this isn't good
12/07 17:06:00 Debug: [75] [prebuffer] sleeping in read -- this isn't good
12/07 17:06:00 Debug: [75] [prebuffer] sleeping in read -- this isn't good
12/07 17:06:00 Debug: [75] [prebuffer] sleeping in read -- this isn't good
12/07 17:06:01 Debug: [75] [prebuffer] sleeping in read -- this isn't good
12/07 17:06:01 Debug: [75] [prebuffer] sleeping in read -- this isn't good
12/07 17:06:02 Warn: [94] FTMSI-B-OE qo/A086CA74: poor connection kbps:4958.0 (min:6146.0)
12/0

I see quite a few of these too:

12/07 17:07:39 Warn: [64] [songcastdirect] [Linn Klimax DS] time discontinuity. Expected 109, Got 110