I tried to measure the interrupts. Here are the results: If I don't play sounds, I have about 1 interrupt/sec on interrupt 11. If I play a mp3 with mpg321 (44,1kHz, 16bit), I get about 1375 interrupts/sec. All values are measured after initializing the chip with oss-module, removing it from memory and reloading alsa-module. If I don't load the oss-module before and remove it, there are no interrupts used.
René ----- Original Message ----- From: "René Kermis" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Friday, May 31, 2002 2:33 PM Subject: Re: [Alsa-devel] Updated: via8233 driver -- testers wanted > Sorry, > > forgot to mention, that I cannot check the status of the interrupt, because > there are other devices on the same interrupt (NIC and SCSI-adapter). I > could not find an option in my bios to give the audio chip an own interrupt. > > CPU0 > 0: 1551713 XT-PIC timer > 1: 6143 XT-PIC keyboard > 2: 0 XT-PIC cascade > 8: 1 XT-PIC rtc > 11: 814617 XT-PIC AM53C974, eth0, VIA8233 > 12: 35795 XT-PIC hpt37x2 > NMI: 0 > LOC: 1551630 > ERR: 272 > MIS: 0 > > René > > ----- Original Message ----- > From: "Niek van der Maas" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Friday, May 31, 2002 12:36 PM > Subject: Re: [Alsa-devel] Updated: via8233 driver -- testers wanted > > > On Friday 31 May 2002 13:55, Takashi Iwai wrote: > > it seems like no interrupts are generated during playback. > > could you check whether the status in /proc/interrupts is changed > > during playback? > > > > also, could you check whether capture works? capture uses a different > > SGD, so it might work individually from playback. > > > > > > (BTW, CD and line-ine can be heard without problems, since they are > > routed directly throught ac97, so no sound engine is needed.) > > > > > > thanks, > > > > Takashi > > Hi Takashi, > > I tried it, and here are the results: > > > Before playing: > tussen root # cat /proc/interrupts > CPU0 > 0: 3875633 XT-PIC timer > 1: 6924 XT-PIC keyboard > 2: 0 XT-PIC cascade > 5: 21629 XT-PIC usb-uhci, usb-uhci, eth0 > 9: 0 XT-PIC acpi > 11: 0 XT-PIC VIA8233 > 12: 305308 XT-PIC PS/2 Mouse > 14: 60038 XT-PIC ide0 > 15: 45 XT-PIC ide1 > NMI: 0 > LOC: 3875608 > ERR: 4810 > MIS: 0 > > Start playing file: > tussen root # aplay /usr/kde/3/share/sounds/pop.wav > Playing WAVE '/usr/kde/3/share/sounds/pop.wav' : Signed 16 bit Little > Endian, > Rate 44100 Hz, Mono > ALSA lib pcm_hw.c:413:(snd_pcm_hw_drain) SNDRV_PCM_IOCTL_DRAIN failed: > Input/output error > > While playing file: > tussen root # cat /proc/interrupts > CPU0 > 0: 3882996 XT-PIC timer > 1: 6940 XT-PIC keyboard > 2: 0 XT-PIC cascade > 5: 21629 XT-PIC usb-uhci, usb-uhci, eth0 > 9: 0 XT-PIC acpi > 11: 0 XT-PIC VIA8233 > 12: 305536 XT-PIC PS/2 Mouse > 14: 60050 XT-PIC ide0 > 15: 45 XT-PIC ide1 > NMI: 0 > LOC: 3882972 > ERR: 4810 > MIS: 0 > > After playing file: > tussen root # cat /proc/interrupts > CPU0 > 0: 3892526 XT-PIC timer > 1: 6950 XT-PIC keyboard > 2: 0 XT-PIC cascade > 5: 21629 XT-PIC usb-uhci, usb-uhci, eth0 > 9: 0 XT-PIC acpi > 11: 0 XT-PIC VIA8233 > 12: 305744 XT-PIC PS/2 Mouse > 14: 60074 XT-PIC ide0 > 15: 45 XT-PIC ide1 > NMI: 0 > LOC: 3892501 > ERR: 4810 > > How can I test the capture? Do you mean that I have to plug in a microphone > and record a sound or so? > > Thanks, > > Niek. > > _______________________________________________________________ > > Don't miss the 2002 Sprint PCS Application Developer's Conference > August 25-28 in Las Vegas -- http://devcon.sprintpcs.com/adp/index.cfm > > _______________________________________________ > Alsa-devel mailing list > [EMAIL PROTECTED] > https://lists.sourceforge.net/lists/listinfo/alsa-devel > > > > _______________________________________________________________ > > Don't miss the 2002 Sprint PCS Application Developer's Conference > August 25-28 in Las Vegas -- http://devcon.sprintpcs.com/adp/index.cfm > > _______________________________________________ > Alsa-devel mailing list > [EMAIL PROTECTED] > https://lists.sourceforge.net/lists/listinfo/alsa-devel > _______________________________________________________________ Don't miss the 2002 Sprint PCS Application Developer's Conference August 25-28 in Las Vegas -- http://devcon.sprintpcs.com/adp/index.cfm _______________________________________________ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
