bugLINGOT Is Not a Guitar-Only Tuner - Bugs: bug #38156, Bad performance with PulseAudio

 
 

bug #38156: Bad performance with PulseAudio

Submitted by:  Ibán Cereijo <ibancereijo>
Submitted on:  Wed 23 Jan 2013 10:16:43 PM UTC  
 
Category: NoneSeverity: 5 - Blocker
Item Group: NoneStatus: Ready For Test
Privacy: PublicAssigned to: Ibán Cereijo <ibancereijo>
Open/Closed: Open

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Sun 03 Feb 2013 11:50:03 PM UTC, comment #2:

Turns out that a buffer of 128 samples is too short for PA. Increasing it up to 2048 samples for 48000 Hz of sampling rate gives better results (still worse than ALSA BTW).

Ibán Cereijo <ibancereijo>
Project AdministratorIn charge of this item.
Sun 03 Feb 2013 11:45:54 PM UTC, comment #1:

I meant:

Running with ALSA with a given configuration, lingot consumes ~15% of CPU.
With PulseAudio, it eats more than 50% of CPU, and the pulseaudio process takes another 30%.

Ibán Cereijo <ibancereijo>
Project AdministratorIn charge of this item.
Wed 23 Jan 2013 10:16:43 PM UTC, original submission:

Running with ALSA with a given configuration, lingot consumes ~15% of CPU.
With ALSA, it eats more than 50% oc CPU, and the pulseaudio process takes another 30%.

Ibán Cereijo <ibancereijo>
Project AdministratorIn charge of this item.

 

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    Follows 1 latest change.

    Date Changed By Updated Field Previous Value => Replaced By
    Sun 03 Feb 2013 11:50:03 PM UTCibancereijoStatusConfirmed=>Ready For Test

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