From: Maciej Rutecki <maciej.rutecki@gmail.com>
To: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
alsa-devel@alsa-project.org, perex@perex.cz, tiwai@suse.de,
"Rafael J. Wysocki" <rjw@sisk.pl>
Subject: [2.6.33-rc1] [SOUND] HDA: high cpu usage, noise
Date: Sun, 20 Dec 2009 18:27:45 +0100 [thread overview]
Message-ID: <8db1092f0912200927y7cdab36ftd1f73d56cd89763f@mail.gmail.com> (raw)
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
next reply other threads:[~2009-12-20 17:27 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-20 17:27 Maciej Rutecki [this message]
2009-12-21 10:28 ` Takashi Iwai
2009-12-21 18:12 ` Maciej Rutecki
2009-12-21 19:08 ` Éric Piel
2009-12-22 7:04 ` Takashi Iwai
2009-12-22 9:15 ` Éric Piel
2009-12-22 9:17 ` Takashi Iwai
2009-12-22 15:15 ` Éric Piel
2009-12-22 15:40 ` Takashi Iwai
2009-12-22 15:42 ` Éric Piel
2009-12-23 14:27 ` Éric Piel
2009-12-23 15:02 ` Takashi Iwai
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