Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755694AbZLTR1t (ORCPT ); Sun, 20 Dec 2009 12:27:49 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752855AbZLTR1s (ORCPT ); Sun, 20 Dec 2009 12:27:48 -0500 Received: from mail-ew0-f209.google.com ([209.85.219.209]:63220 "EHLO mail-ew0-f209.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751116AbZLTR1r (ORCPT ); Sun, 20 Dec 2009 12:27:47 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; b=F+DnoXlt/DRq8aq7SFs4W+DyaUF8UWqiJG5LAEM5wlPMU3D46aNYxmeJ0iiZtKUrF5 qvJSmmjjQDkYXAmHfyots/6bJuiRMHMKRLTrhOIGfXMomg1o6t0O45GRJqAJ9BilhqiS oRNUrgek31S5yy70cZCNU4dNq1L1Szcw+x1YM= MIME-Version: 1.0 Date: Sun, 20 Dec 2009 18:27:45 +0100 Message-ID: <8db1092f0912200927y7cdab36ftd1f73d56cd89763f@mail.gmail.com> Subject: [2.6.33-rc1] [SOUND] HDA: high cpu usage, noise From: Maciej Rutecki To: Linux Kernel Mailing List , alsa-devel@alsa-project.org, perex@perex.cz, tiwai@suse.de, "Rafael J. Wysocki" Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2479 Lines: 60 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/