| 2024-06-24 11:32:34 |
Gary.Wang |
description |
When no audio output is performed, profile anbox session process, we discovered that the Audio Encoder thread from the webrtc stack consumed abnormally CPU times.
```
43.10% AudioEncoder webrtc_common.so
11.30% network [kernel]
4.50% EncoderQueue libcuda.so.550.40.07
4.26% AudioEncoder [kernel]
4.08% worker webrtc_common.so
3.67% EncoderQueue [kernel]
3.53% worker [kernel]
2.92% EncoderQueue webrtc_common.so
2.83% EncoderQueue libnvcuvid.so.550.40.07
2.74% network webrtc_common.so
```
```
43.10% 592 AudioEncoder webrtc_common.so [.] silk_noise_shape_quantizer_del_dec_sse4_1
8.47% 127 AudioEncoder webrtc_common.so [.] silk_warped_autocorrelation_FLP
6.81% 99 AudioEncoder webrtc_common.so [.] silk_resampler_down2_hp
4.35% 61 AudioEncoder webrtc_common.so [.] silk_NLSF_del_dec_quant
2.87% 39 AudioEncoder webrtc_common.so [.] silk_inner_product_FLP
2.51% 25 AudioEncoder webrtc_common.so [.] silk_resampler_private_down_FIR
2.10% 33 AudioEncoder webrtc_common.so [.] transient_analysis
1.91% 23 AudioEncoder webrtc_common.so [.] opus_fft_impl
``` |
When no audio output is performed, profile anbox session process, we discovered that the Audio Encoder thread from the webrtc stack consumed abnormally CPU times.
```
43.10% AudioEncoder webrtc_common.so
11.30% network [kernel]
4.50% EncoderQueue libcuda.so.550.40.07
4.26% AudioEncoder [kernel]
4.08% worker webrtc_common.so
3.67% EncoderQueue [kernel]
3.53% worker [kernel]
2.92% EncoderQueue webrtc_common.so
2.83% EncoderQueue libnvcuvid.so.550.40.07
2.74% network webrtc_common.so
```
```
43.10% 592 AudioEncoder webrtc_common.so [.] silk_noise_shape_quantizer_del_dec_sse4_1
8.47% 127 AudioEncoder webrtc_common.so [.] silk_warped_autocorrelation_FLP
6.81% 99 AudioEncoder webrtc_common.so [.] silk_resampler_down2_hp
4.35% 61 AudioEncoder webrtc_common.so [.] silk_NLSF_del_dec_quant
2.87% 39 AudioEncoder webrtc_common.so [.] silk_inner_product_FLP
2.51% 25 AudioEncoder webrtc_common.so [.] silk_resampler_private_down_FIR
2.10% 33 AudioEncoder webrtc_common.so [.] transient_analysis
1.91% 23 AudioEncoder webrtc_common.so [.] opus_fft_impl
```
This issue is related to the silence audio effect produced by the Anbox session, which triggers the WebRTC noise shaping quantization (NSQ) module to do some heavely work |
|
