[pulseaudio-tickets] [Bug 84585] Issue of CPU usage with HiFiBerry driver snd_soc_hifiberry_amp with Debian Wheezy kernel 3.12.28
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Thu Oct 2 05:03:05 PDT 2014
https://bugs.freedesktop.org/show_bug.cgi?id=84585
--- Comment #3 from Alessandro Ferri <alessandroferri_015 at fastwebnet.it> ---
(In reply to Tanu Kaskinen from comment #1)
> Maybe the new kernel has enabled some new sample rate that doesn't match the
> audio that you're playing, so pulseaudio has to do resampling that it didn't
> previously need to do?
>
> Could you attach the output of "pactl list" in both cases (old kernel with
> low cpu use, new kernel with high cpu use)?
Hi,
Wherein reported are the reports that you asked me.
Debian wheezy with kernel 3.12.25 :
pi at raspberrypi ~ $ uname -a
Linux raspberrypi 3.12.25+ #29 PREEMPT Sun Sep 21 08:38:08 CEST 2014 armv6l
GNU/Linux
pi at raspberrypi ~ $ pactl list
Module #0
Name: module-alsa-card
Argument: device_id="0" name="platform-snd-hifiberry-amp.0"
card_name="alsa_card.platform-snd-hifiberry-amp.0" namereg_fail=false
tsched=yes fixed_latency_range=no ignore_dB=no deferred_volume=yes
card_properties="module-udev-detect.discovered=1"
Usage counter: 3
Properties:
module.author = "Lennart Poettering"
module.description = "ALSA Card"
module.version = "2.0"
Module #1
Name: module-udev-detect
Argument:
Usage counter: n/a
Properties:
module.author = "Lennart Poettering"
module.description = "Detect available audio hardware and load matching
drivers"
module.version = "2.0"
Module #2
Name: module-native-protocol-unix
Argument:
Usage counter: n/a
Properties:
module.author = "Lennart Poettering"
module.description = "Native protocol (UNIX sockets)"
module.version = "2.0"
Module #3
Name: module-stream-restore
Argument:
Usage counter: n/a
Properties:
module.author = "Lennart Poettering"
module.description = "Automatically restore the volume/mute/device
state of streams"
module.version = "2.0"
Module #4
Name: module-device-restore
Argument:
Usage counter: n/a
Properties:
module.author = "Lennart Poettering"
module.description = "Automatically restore the volume/mute state of
devices"
module.version = "2.0"
Module #5
Name: module-default-device-restore
Argument:
Usage counter: n/a
Properties:
module.author = "Lennart Poettering"
module.description = "Automatically restore the default sink and
source"
module.version = "2.0"
Module #6
Name: module-dbus-protocol
Argument: access=local
Usage counter: n/a
Properties:
module.author = "Tanu Kaskinen"
module.description = "D-Bus interface"
module.version = "2.0"
Module #7
Name: module-rescue-streams
Argument:
Usage counter: n/a
Properties:
module.author = "Lennart Poettering"
module.description = "When a sink/source is removed, try to move their
streams to the default sink/source"
module.version = "2.0"
Module #8
Name: module-always-sink
Argument:
Usage counter: n/a
Properties:
module.author = "Colin Guthrie"
module.description = "Always keeps at least one sink loaded even if
it's a null one"
module.version = "2.0"
Module #9
Name: module-position-event-sounds
Argument:
Usage counter: n/a
Properties:
module.author = "Lennart Poettering"
module.description = "Position event sounds between L and R depending
on the position on screen of the widget triggering them."
module.version = "2.0"
Module #10
Name: module-native-protocol-tcp
Argument: auth-ip-acl=127.0.0.1;192.168.0.0/24 auth-anonymous=1
Usage counter: n/a
Properties:
module.author = "Lennart Poettering"
module.description = "Native protocol (TCP sockets)"
module.version = "2.0"
Module #11
Name: module-zeroconf-publish
Argument:
Usage counter: n/a
Properties:
module.author = "Lennart Poettering"
module.description = "mDNS/DNS-SD Service Publisher"
module.version = "2.0"
Sink #0
State: RUNNING
Name: alsa_output.platform-snd-hifiberry-amp.0.analog-stereo
Description: snd_rpi_hifiberry_amp Analog Stereo
Driver: module-alsa-card.c
Sample Specification: s16le 2ch 44100Hz
Channel Map: front-left,front-right
Owner Module: 0
Mute: no
Volume: 0: 70% 1: 70%
balance 0.00
Base Volume: 100%
Monitor Source:
alsa_output.platform-snd-hifiberry-amp.0.analog-stereo.monitor
Latency: 104494 usec, configured 105000 usec
Flags: HARDWARE HW_VOLUME_CTRL LATENCY
Properties:
alsa.resolution_bits = "16"
device.api = "alsa"
device.class = "sound"
alsa.class = "generic"
alsa.subclass = "generic-mix"
alsa.name = ""
alsa.id = "HifiBerry AMP HiFi tas5713-hifi-0"
alsa.subdevice = "0"
alsa.subdevice_name = "subdevice #0"
alsa.device = "0"
alsa.card = "0"
alsa.card_name = "snd_rpi_hifiberry_amp"
alsa.long_card_name = "snd_rpi_hifiberry_amp"
alsa.driver_name = "snd_soc_hifiberry_amp"
device.bus_path = "platform-snd-hifiberry-amp.0"
sysfs.path = "/devices/platform/snd-hifiberry-amp.0/sound/card0"
device.string = "front:0"
device.buffering.buffer_size = "352800"
device.buffering.fragment_size = "176400"
device.access_mode = "mmap+timer"
device.profile.name = "analog-stereo"
device.profile.description = "Analog Stereo"
device.description = "snd_rpi_hifiberry_amp Analog Stereo"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card"
Ports:
analog-output: Analog Output (priority: 9900)
Active Port: analog-output
Formats:
pcm
Source #0
State: RUNNING
Name: alsa_output.platform-snd-hifiberry-amp.0.analog-stereo.monitor
Description: Monitor of snd_rpi_hifiberry_amp Analog Stereo
Driver: module-alsa-card.c
Sample Specification: s16le 2ch 44100Hz
Channel Map: front-left,front-right
Owner Module: 0
Mute: no
Volume: 0: 100% 1: 100%
0: 0.00 dB 1: 0.00 dB
balance 0.00
Base Volume: 100%
0.00 dB
Monitor of Sink: alsa_output.platform-snd-hifiberry-amp.0.analog-stereo
Latency: 0 usec, configured 2000000 usec
Flags: DECIBEL_VOLUME LATENCY
Properties:
device.description = "Monitor of snd_rpi_hifiberry_amp Analog Stereo"
device.class = "monitor"
alsa.card = "0"
alsa.card_name = "snd_rpi_hifiberry_amp"
alsa.long_card_name = "snd_rpi_hifiberry_amp"
alsa.driver_name = "snd_soc_hifiberry_amp"
device.bus_path = "platform-snd-hifiberry-amp.0"
sysfs.path = "/devices/platform/snd-hifiberry-amp.0/sound/card0"
device.string = "0"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card"
Formats:
pcm
Sink Input #0
Driver: protocol-native.c
Owner Module: 2
Client: 0
Sink: 0
Sample Specification: s16le 2ch 44100Hz
Channel Map: front-left,front-right
Format: pcm, format.sample_format = "\"s16le\"" format.rate = "44100"
format.channels = "2" format.channel_map = "\"front-left,front-right\""
Mute: no
Volume: 0: 100% 1: 100%
0: 0.00 dB 1: 0.00 dB
balance 0.00
Buffer Latency: 0 usec
Sink Latency: 82373 usec
Resample method: n/a
Properties:
media.name = "Shairport Stream"
application.name = "AirAni-b35336"
native-protocol.peer = "UNIX socket client"
native-protocol.version = "26"
application.process.id = "2218"
application.process.user = "pi"
application.process.host = "raspberrypi"
application.process.binary = "shairport"
application.language = "C"
application.process.machine_id = "d3670ff77a0bb988a953e7f053a3f4e7"
module-stream-restore.id =
"sink-input-by-application-name:AirAni-b35336"
Source Output #0
Driver: protocol-native.c
Owner Module: 2
Client: 4
Source: 0
Sample Specification: s16le 2ch 44100Hz
Channel Map: front-left,front-right
Format: pcm, format.sample_format = "\"s16le\"" format.rate = "44100"
format.channels = "2" format.channel_map = "\"front-left,front-right\""
Mute: no
Volume: 0: 100% 1: 100%
0: 0.00 dB 1: 0.00 dB
balance 0.00
Buffer Latency: 58775 usec
Source Latency: 0 usec
Resample method: n/a
Properties:
media.name = "cimpulse"
application.name = "cimpulse"
native-protocol.peer = "UNIX socket client"
native-protocol.version = "26"
application.process.id = "2341"
application.process.user = "pi"
application.process.host = "raspberrypi"
application.process.binary = "LightSone"
application.language = "C"
application.process.machine_id = "d3670ff77a0bb988a953e7f053a3f4e7"
module-stream-restore.id = "source-output-by-application-name:cimpulse"
Client #0
Driver: protocol-native.c
Owner Module: 2
Properties:
application.name = "AirAni-b35336"
native-protocol.peer = "UNIX socket client"
native-protocol.version = "26"
application.process.id = "2218"
application.process.user = "pi"
application.process.host = "raspberrypi"
application.process.binary = "shairport"
application.language = "C"
application.process.machine_id = "d3670ff77a0bb988a953e7f053a3f4e7"
Client #4
Driver: protocol-native.c
Owner Module: 2
Properties:
application.name = "cimpulse"
native-protocol.peer = "UNIX socket client"
native-protocol.version = "26"
application.process.id = "2341"
application.process.user = "pi"
application.process.host = "raspberrypi"
application.process.binary = "LightSone"
application.language = "C"
application.process.machine_id = "d3670ff77a0bb988a953e7f053a3f4e7"
Client #7
Driver: protocol-native.c
Owner Module: 10
Properties:
application.name = "pactl"
native-protocol.peer = "TCP/IP client from 127.0.0.1:43601"
native-protocol.version = "26"
application.process.id = "2677"
application.process.user = "pi"
application.process.host = "raspberrypi"
application.process.binary = "pactl"
application.language = "en_GB.UTF-8"
window.x11.display = ":0.0"
application.process.machine_id = "d3670ff77a0bb988a953e7f053a3f4e7"
application.process.session_id =
"d3670ff77a0bb988a953e7f053a3f4e7-1411426031.986903-1502075250"
Card #0
Name: alsa_card.platform-snd-hifiberry-amp.0
Driver: module-alsa-card.c
Owner Module: 0
Properties:
alsa.card = "0"
alsa.card_name = "snd_rpi_hifiberry_amp"
alsa.long_card_name = "snd_rpi_hifiberry_amp"
alsa.driver_name = "snd_soc_hifiberry_amp"
device.bus_path = "platform-snd-hifiberry-amp.0"
sysfs.path = "/devices/platform/snd-hifiberry-amp.0/sound/card0"
device.string = "0"
device.description = "snd_rpi_hifiberry_amp"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card"
Profiles:
output:analog-stereo: Analog Stereo Output (sinks: 1, sources: 0,
priority. 6000)
off: Off (sinks: 0, sources: 0, priority. 0)
Active Profile: output:analog-stereo
Ports:
analog-output: Analog Output (priority: 9900)
Part of profile(s): output:analog-stereo
CPU usage by pulseaudio without streaming audio before and after with streaming
audio:
pi at raspberrypi ~ $ top
top - 00:49:54 up 3 min, 2 users, load average: 0.77, 0.54, 0.23
Tasks: 99 total, 1 running, 98 sleeping, 0 stopped, 0 zombie
%Cpu(s): 3.1 us, 3.4 sy, 1.0 ni, 92.5 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
KiB Mem: 447988 total, 177748 used, 270240 free, 23140 buffers
KiB Swap: 102396 total, 0 used, 102396 free, 78768 cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
2140 pulse 9 -11 88304 8956 3584 S 2.3 2.0 0:15.71 pulseaudio
2392 root 20 0 23944 15m 4776 S 1.6 3.6 0:06.13 Xorg
2650 pi 20 0 4672 1368 1020 R 1.3 0.3 0:00.22 top
2341 root 30 10 91464 2264 1816 S 1.0 0.5 0:01.99 LightSone
2609 pi 20 0 113m 10m 8424 S 0.7 2.4 0:03.12 lxterminal
39 root 20 0 0 0 0 S 0.3 0.0 0:01.29 mmcqd/0
230 root 20 0 0 0 0 S 0.3 0.0 0:01.87 usb-storage
268 root 20 0 0 0 0 S 0.3 0.0 0:00.41 kworker/0:2
2263 root 20 0 0 0 0 S 0.3 0.0 0:00.30 RTW_CMD_THREAD
pi at raspberrypi ~ $ top
top - 00:48:22 up 2 min, 2 users, load average: 0.64, 0.35, 0.14
Tasks: 97 total, 1 running, 96 sleeping, 0 stopped, 0 zombie
%Cpu(s): 17.3 us, 13.1 sy, 0.7 ni, 67.8 id, 0.0 wa, 0.0 hi, 1.0 si, 0.0 st
KiB Mem: 447988 total, 147380 used, 300608 free, 14412 buffers
KiB Swap: 102396 total, 0 used, 102396 free, 69540 cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
2140 pulse 9 -11 88304 7864 3584 S 15.3 1.8 0:05.05 pulseaudio
2218 pi 20 0 115m 3896 2412 S 11.7 0.9 0:02.37 shairport
2392 root 20 0 17412 10m 4076 S 2.0 2.3 0:02.13 Xorg
2627 pi 20 0 4672 1368 1020 R 1.3 0.3 0:00.30 top
2341 root 30 10 91464 2264 1816 S 1.0 0.5 0:00.97 LightSone
6 root 20 0 0 0 0 S 0.3 0.0 0:00.27 kworker/u2:0
268 root 20 0 0 0 0 S 0.3 0.0 0:00.15 kworker/0:2
2263 root 20 0 0 0 0 S 0.3 0.0 0:00.15 RTW_CMD_THREAD
2498 pi 20 0 103m 8708 6896 S 0.3 1.9 0:01.42 lxpanel
2609 pi 20 0 112m 9568 7444 S 0.3 2.1 0:01.02 lxterminal
Debian wheezy with kernel 3.12.28 :
pi at raspberrypi ~ $ uname -a
Linux raspberrypi 3.12.28+ #713 PREEMPT Fri Sep 19 16:43:32 BST 2014 armv6l
GNU/Linux
pi at raspberrypi ~ $ pactl list
Module #0
Name: module-alsa-card
Argument: device_id="0" name="platform-snd-hifiberry-amp.0"
card_name="alsa_card.platform-snd-hifiberry-amp.0" namereg_fail=false
tsched=yes fixed_latency_range=no ignore_dB=no deferred_volume=yes
card_properties="module-udev-detect.discovered=1"
Usage counter: 3
Properties:
module.author = "Lennart Poettering"
module.description = "ALSA Card"
module.version = "2.0"
Module #1
Name: module-udev-detect
Argument:
Usage counter: n/a
Properties:
module.author = "Lennart Poettering"
module.description = "Detect available audio hardware and load matching
drivers"
module.version = "2.0"
Module #2
Name: module-native-protocol-unix
Argument:
Usage counter: n/a
Properties:
module.author = "Lennart Poettering"
module.description = "Native protocol (UNIX sockets)"
module.version = "2.0"
Module #3
Name: module-stream-restore
Argument:
Usage counter: n/a
Properties:
module.author = "Lennart Poettering"
module.description = "Automatically restore the volume/mute/device
state of streams"
module.version = "2.0"
Module #4
Name: module-device-restore
Argument:
Usage counter: n/a
Properties:
module.author = "Lennart Poettering"
module.description = "Automatically restore the volume/mute state of
devices"
module.version = "2.0"
Module #5
Name: module-default-device-restore
Argument:
Usage counter: n/a
Properties:
module.author = "Lennart Poettering"
module.description = "Automatically restore the default sink and
source"
module.version = "2.0"
Module #6
Name: module-dbus-protocol
Argument: access=local
Usage counter: n/a
Properties:
module.author = "Tanu Kaskinen"
module.description = "D-Bus interface"
module.version = "2.0"
Module #7
Name: module-rescue-streams
Argument:
Usage counter: n/a
Properties:
module.author = "Lennart Poettering"
module.description = "When a sink/source is removed, try to move their
streams to the default sink/source"
module.version = "2.0"
Module #8
Name: module-always-sink
Argument:
Usage counter: n/a
Properties:
module.author = "Colin Guthrie"
module.description = "Always keeps at least one sink loaded even if
it's a null one"
module.version = "2.0"
Module #9
Name: module-position-event-sounds
Argument:
Usage counter: n/a
Properties:
module.author = "Lennart Poettering"
module.description = "Position event sounds between L and R depending
on the position on screen of the widget triggering them."
module.version = "2.0"
Module #10
Name: module-native-protocol-tcp
Argument: auth-ip-acl=127.0.0.1;192.168.0.0/24 auth-anonymous=1
Usage counter: n/a
Properties:
module.author = "Lennart Poettering"
module.description = "Native protocol (TCP sockets)"
module.version = "2.0"
Module #11
Name: module-zeroconf-publish
Argument:
Usage counter: n/a
Properties:
module.author = "Lennart Poettering"
module.description = "mDNS/DNS-SD Service Publisher"
module.version = "2.0"
Sink #0
State: RUNNING
Name: alsa_output.platform-snd-hifiberry-amp.0.analog-stereo
Description: snd_rpi_hifiberry_amp Analog Stereo
Driver: module-alsa-card.c
Sample Specification: s16le 2ch 44100Hz
Channel Map: front-left,front-right
Owner Module: 0
Mute: no
Volume: 0: 70% 1: 70%
balance 0.00
Base Volume: 100%
Monitor Source:
alsa_output.platform-snd-hifiberry-amp.0.analog-stereo.monitor
Latency: 887328 usec, configured 756000 usec
Flags: HARDWARE HW_VOLUME_CTRL LATENCY
Properties:
alsa.resolution_bits = "16"
device.api = "alsa"
device.class = "sound"
alsa.class = "generic"
alsa.subclass = "generic-mix"
alsa.name = ""
alsa.id = "HifiBerry AMP HiFi tas5713-hifi-0"
alsa.subdevice = "0"
alsa.subdevice_name = "subdevice #0"
alsa.device = "0"
alsa.card = "0"
alsa.card_name = "snd_rpi_hifiberry_amp"
alsa.long_card_name = "snd_rpi_hifiberry_amp"
alsa.driver_name = "snd_soc_hifiberry_amp"
device.bus_path = "platform-snd-hifiberry-amp.0"
sysfs.path = "/devices/platform/snd-hifiberry-amp.0/sound/card0"
device.string = "front:0"
device.buffering.buffer_size = "352800"
device.buffering.fragment_size = "176400"
device.access_mode = "mmap+timer"
device.profile.name = "analog-stereo"
device.profile.description = "Analog Stereo"
device.description = "snd_rpi_hifiberry_amp Analog Stereo"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card"
Ports:
analog-output: Analog Output (priority: 9900)
Active Port: analog-output
Formats:
pcm
Source #0
State: RUNNING
Name: alsa_output.platform-snd-hifiberry-amp.0.analog-stereo.monitor
Description: Monitor of snd_rpi_hifiberry_amp Analog Stereo
Driver: module-alsa-card.c
Sample Specification: s16le 2ch 44100Hz
Channel Map: front-left,front-right
Owner Module: 0
Mute: no
Volume: 0: 100% 1: 100%
0: 0.00 dB 1: 0.00 dB
balance 0.00
Base Volume: 100%
0.00 dB
Monitor of Sink: alsa_output.platform-snd-hifiberry-amp.0.analog-stereo
Latency: 0 usec, configured 2000000 usec
Flags: DECIBEL_VOLUME LATENCY
Properties:
device.description = "Monitor of snd_rpi_hifiberry_amp Analog Stereo"
device.class = "monitor"
alsa.card = "0"
alsa.card_name = "snd_rpi_hifiberry_amp"
alsa.long_card_name = "snd_rpi_hifiberry_amp"
alsa.driver_name = "snd_soc_hifiberry_amp"
device.bus_path = "platform-snd-hifiberry-amp.0"
sysfs.path = "/devices/platform/snd-hifiberry-amp.0/sound/card0"
device.string = "0"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card"
Formats:
pcm
Sink Input #0
Driver: protocol-native.c
Owner Module: 2
Client: 0
Sink: 0
Sample Specification: s16le 2ch 44100Hz
Channel Map: front-left,front-right
Format: pcm, format.sample_format = "\"s16le\"" format.rate = "44100"
format.channels = "2" format.channel_map = "\"front-left,front-right\""
Mute: no
Volume: 0: 100% 1: 100%
0: 0.00 dB 1: 0.00 dB
balance 0.00
Buffer Latency: 0 usec
Sink Latency: 810395 usec
Resample method: n/a
Properties:
media.name = "Shairport Stream"
application.name = "AirAni-b35336"
native-protocol.peer = "UNIX socket client"
native-protocol.version = "26"
application.process.id = "2162"
application.process.user = "pi"
application.process.host = "raspberrypi"
application.process.binary = "shairport"
application.language = "C"
application.process.machine_id = "d3670ff77a0bb988a953e7f053a3f4e7"
module-stream-restore.id =
"sink-input-by-application-name:AirAni-b35336"
Source Output #0
Driver: protocol-native.c
Owner Module: 2
Client: 4
Source: 0
Sample Specification: s16le 2ch 44100Hz
Channel Map: front-left,front-right
Format: pcm, format.sample_format = "\"s16le\"" format.rate = "44100"
format.channels = "2" format.channel_map = "\"front-left,front-right\""
Mute: no
Volume: 0: 100% 1: 100%
0: 0.00 dB 1: 0.00 dB
balance 0.00
Buffer Latency: 795986 usec
Source Latency: 0 usec
Resample method: n/a
Properties:
media.name = "cimpulse"
application.name = "cimpulse"
native-protocol.peer = "UNIX socket client"
native-protocol.version = "26"
application.process.id = "2280"
application.process.user = "pi"
application.process.host = "raspberrypi"
application.process.binary = "LightSone"
application.language = "C"
application.process.machine_id = "d3670ff77a0bb988a953e7f053a3f4e7"
module-stream-restore.id = "source-output-by-application-name:cimpulse"
Client #0
Driver: protocol-native.c
Owner Module: 2
Properties:
application.name = "AirAni-b35336"
native-protocol.peer = "UNIX socket client"
native-protocol.version = "26"
application.process.id = "2162"
application.process.user = "pi"
application.process.host = "raspberrypi"
application.process.binary = "shairport"
application.language = "C"
application.process.machine_id = "d3670ff77a0bb988a953e7f053a3f4e7"
Client #4
Driver: protocol-native.c
Owner Module: 2
Properties:
application.name = "cimpulse"
native-protocol.peer = "UNIX socket client"
native-protocol.version = "26"
application.process.id = "2280"
application.process.user = "pi"
application.process.host = "raspberrypi"
application.process.binary = "LightSone"
application.language = "C"
application.process.machine_id = "d3670ff77a0bb988a953e7f053a3f4e7"
Client #7
Driver: protocol-native.c
Owner Module: 10
Properties:
application.name = "pactl"
native-protocol.peer = "TCP/IP client from 127.0.0.1:37702"
native-protocol.version = "26"
application.process.id = "2624"
application.process.user = "pi"
application.process.host = "raspberrypi"
application.process.binary = "pactl"
application.language = "en_GB.UTF-8"
window.x11.display = ":0.0"
application.process.machine_id = "d3670ff77a0bb988a953e7f053a3f4e7"
application.process.session_id =
"d3670ff77a0bb988a953e7f053a3f4e7-1412248712.131666-566053987"
Card #0
Name: alsa_card.platform-snd-hifiberry-amp.0
Driver: module-alsa-card.c
Owner Module: 0
Properties:
alsa.card = "0"
alsa.card_name = "snd_rpi_hifiberry_amp"
alsa.long_card_name = "snd_rpi_hifiberry_amp"
alsa.driver_name = "snd_soc_hifiberry_amp"
device.bus_path = "platform-snd-hifiberry-amp.0"
sysfs.path = "/devices/platform/snd-hifiberry-amp.0/sound/card0"
device.string = "0"
device.description = "snd_rpi_hifiberry_amp"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card"
Profiles:
output:analog-stereo: Analog Stereo Output (sinks: 1, sources: 0,
priority. 6000)
off: Off (sinks: 0, sources: 0, priority. 0)
Active Profile: output:analog-stereo
Ports:
analog-output: Analog Output (priority: 9900)
Part of profile(s): output:analog-stereo
CPU usage by pulseaudio without streaming audio before and after with streaming
audio:
pi at raspberrypi ~ $ top
top - 13:20:09 up 2 min, 2 users, load average: 0.84, 0.65, 0.27
Tasks: 99 total, 1 running, 98 sleeping, 0 stopped, 0 zombie
%Cpu(s): 11.7 us, 7.2 sy, 2.8 ni, 77.9 id, 0.3 wa, 0.0 hi, 0.0 si, 0.0 st
KiB Mem: 447864 total, 177192 used, 270672 free, 24216 buffers
KiB Swap: 102396 total, 0 used, 102396 free, 80724 cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
2103 pulse 9 -11 88336 8296 3592 S 13.4 1.9 0:21.52 pulseaudio
2280 root 30 10 91464 2284 1836 S 4.2 0.5 0:05.24 LightSone
2605 pi 20 0 4672 1380 1032 R 2.0 0.3 0:00.33 top
2356 root 20 0 22916 14m 4852 S 1.6 3.3 0:04.51 Xorg
2515 pi 20 0 104m 9732 7324 S 0.3 2.2 0:02.22 lxpanel
2586 pi 20 0 114m 10m 8532 S 0.3 2.4 0:01.70 lxterminal
pi at raspberrypi ~ $ top
top - 13:23:06 up 5 min, 2 users, load average: 1.26, 0.78, 0.38
Tasks: 97 total, 1 running, 96 sleeping, 0 stopped, 0 zombie
%Cpu(s): 51.6 us, 39.9 sy, 0.3 ni, 0.0 id, 0.0 wa, 0.0 hi, 8.2 si, 0.0 st
KiB Mem: 447864 total, 209352 used, 238512 free, 24312 buffers
KiB Swap: 102396 total, 0 used, 102396 free, 81488 cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
2103 pulse 9 -11 88336 35m 3604 S 58.0 8.1 0:53.72 pulseaudio
2162 pi 20 0 115m 4172 2756 S 34.1 0.9 0:06.71 shairport
2280 root 30 10 91464 2304 1856 S 2.2 0.5 0:12.51 LightSone
2356 root 20 0 25648 17m 5108 S 2.2 4.0 0:17.51 Xorg
2638 pi 20 0 4672 1380 1032 R 1.3 0.3 0:00.58 top
2586 pi 20 0 114m 10m 8672 S 0.9 2.5 0:06.94 lxterminal
3 root 20 0 0 0 0 S 0.3 0.0 0:01.06 ksoftirqd/0
4 root 20 0 0 0 0 S 0.3 0.0 0:00.33 kworker/0:0
2236 root 20 0 0 0 0 S 0.3 0.0 0:00.51 RTW_CMD_THREAD
2515 pi 20 0 104m 9796 7388 S 0.3 2.2 0:03.05 lxpanel
Best regards.
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