[LAU] reducing xruns (System configuration)

Max abonnements at revolwear.com
Wed Jul 18 21:28:07 CEST 2018


On 18.07.2018 20:14, Chris Caudle wrote:
> On Wed, July 18, 2018 12:27 pm, Max wrote:
>> On 18.07.2018 18:49, Jeanette C. wrote:
>>> If you're using JACK, check the periods and buffersize. Perhaps it's a
>>> little low.
>>
>> It is.. :)
> 
> How low?  There is  quite a bit of variation in how low you can go with
> USB devices, some run down to very low buffer sizes, some do not. Some
> work fine with 2 buffers per period, some require 3 buffers per period to
> run reliably.

64 buffer size at 48kHz 2 Periods/Buffer

> Same with standard vs. low latency vs. RT kernels, with 1024 sample buffer
> size you can run OK with a standard kernel.  With 32 sample buffer size
> (0.7ms) you will be unlikely (/understatement) to run reliably with a
> standard kernel.
> 
> There have been multiple reports of WiFi drivers causing long delays in
> scheduling, I noticed in your lspci output that there is a WiFi device in
> your system.  Try disabling that adapter (you will have to use google,
> duck duck, etc. to find out how, I do not know how to make sure it is
> completely turned off).

I see, I will give this a try.
Thanks


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