Messages in this thread | | | Date | Sun, 20 Dec 2009 18:27:45 +0100 | Subject | [2.6.33-rc1] [SOUND] HDA: high cpu usage, noise | From | Maciej Rutecki <> |
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Hi
Affected kernel: 2.6.33-rc1 Last known good: 2.6.32
Hadware: /proc/asound/pcm 00-00: AD198x Analog : AD198x Analog : playback 1 : capture 1 00-06: Si3054 Modem : Si3054 Modem : playback 1 : capture 1
I notice high cpu load during idle/playing sounds. From "ps aux":
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND root 1119 26.4 0.0 0 0 ? R 18:09 1:47 [hd-audio0]
Also I hear noise, during (probably) disk I/O operations. Any suggestions?
cat /proc/interrupts CPU0 CPU1 0: 58385 0 IO-APIC-edge timer 1: 77 201 IO-APIC-edge i8042 8: 1 0 IO-APIC-edge rtc0 9: 67 117 IO-APIC-fasteoi acpi 12: 157 14303 IO-APIC-edge i8042 14: 1625 0 IO-APIC-edge ata_piix 15: 0 0 IO-APIC-edge ata_piix 16: 1115 0 IO-APIC-fasteoi i915@pci:0000:00:02.0, eth0 18: 0 0 IO-APIC-fasteoi yenta, uhci_hcd:usb4 19: 1 0 IO-APIC-fasteoi ohci1394, uhci_hcd:usb5 20: 146 2 IO-APIC-fasteoi ehci_hcd:usb1, uhci_hcd:usb2 21: 0 0 IO-APIC-fasteoi uhci_hcd:usb3 27: 4013 10861 PCI-MSI-edge ahci 28: 3452 0 PCI-MSI-edge iwl3945 29: 1556997 0 PCI-MSI-edge HDA Intel NMI: 0 0 Non-maskable interrupts LOC: 16143 35244 Local timer interrupts SPU: 0 0 Spurious interrupts PMI: 0 0 Performance monitoring interrupts PND: 0 0 Performance pending work RES: 27154 126864 Rescheduling interrupts CAL: 59 34 Function call interrupts TLB: 899 748 TLB shootdowns TRM: 0 0 Thermal event interrupts THR: 0 0 Threshold APIC interrupts MCE: 0 0 Machine check exceptions MCP: 1 1 Machine check polls ERR: 0 MIS: 0
Config, dmesg and lspci: http://unixy.pl/maciek/download/kernel/2.6.33-rc1/gumis/
-- Maciej Rutecki http://www.maciek.unixy.pl
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