Which alsa modules do I really need?

Hi everyone,
I set up sound on a very old PC. At first I set module autoloading in rc.conf, in order to check which sound modules my hardware need. I then realized it could take up to 20 seconds to load udev events at boot time, so I put my sound modules in rc.conf and disabled module autoloading. It brought udev time down to 5 seconds.
I wonder if I can bring it to an even lower value. I suspect some of my sound modules aren't really needed. I'd appreciate some advices to identify which modules are needed, and which are not.
$ lspci
00:00.0 Host bridge: Silicon Integrated Systems [SiS] 630 Host (rev 20)
00:00.1 IDE interface: Silicon Integrated Systems [SiS] 5513 [IDE] (rev d0)
00:01.0 ISA bridge: Silicon Integrated Systems [SiS] SiS85C503/5513 (LPC Bridge)
00:01.1 Ethernet controller: Silicon Integrated Systems [SiS] SiS900 PCI Fast Ethernet (rev 81)
00:01.2 USB Controller: Silicon Integrated Systems [SiS] USB 1.1 Controller (rev 07)
00:01.3 USB Controller: Silicon Integrated Systems [SiS] USB 1.1 Controller (rev 07)
00:01.4 Multimedia audio controller: Silicon Integrated Systems [SiS] SiS PCI Audio Accelerator (rev 02)
00:02.0 PCI bridge: Silicon Integrated Systems [SiS] Virtual PCI-to-PCI bridge (AGP)
00:09.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)
00:0b.0 Ethernet controller: 3Com Corporation 3c905B 100BaseTX [Cyclone] (rev 30)
00:0d.0 Ethernet controller: Winbond Electronics Corp W89C840
01:00.0 VGA compatible controller: Silicon Integrated Systems [SiS] 630/730 PCI/AGP VGA Display Adapter (rev 20)
lsmod output with module autoload
# lsmod
Module Size Used by
reiserfs 230112 1
ext2 64860 1
snd_seq_oss 29888 0
snd_seq_midi_event 5972 1 snd_seq_oss
snd_seq 48176 4 snd_seq_oss,snd_seq_midi_event
snd_pcm_oss 38112 0
snd_mixer_oss 14388 1 snd_pcm_oss
snd_cs4232 13204 0
snd_wavefront 53044 0
snd_wss_lib 23988 2 snd_cs4232,snd_wavefront
snd_trident 34756 0
snd_opl3_lib 9204 2 snd_cs4232,snd_wavefront
rfkill 9392 0
snd_hwdep 6904 2 snd_wavefront,snd_opl3_lib
snd_ac97_codec 100120 1 snd_trident
ac97_bus 1364 1 snd_ac97_codec
led_class 3384 0
wmi 6280 0
analog 10112 0
snd_pcm 67992 4 snd_pcm_oss,snd_wss_lib,snd_trident,snd_ac97_codec
serio_raw 5048 0
snd_timer 19260 4 snd_seq,snd_wss_lib,snd_opl3_lib,snd_pcm
snd_page_alloc 8092 3 snd_wss_lib,snd_trident,snd_pcm
snd_mpu401 6920 0
snd_util_mem 3220 1 snd_trident
snd_mpu401_uart 6548 4 snd_cs4232,snd_wavefront,snd_trident,snd_mpu401
pcspkr 2196 0
snd_rawmidi 19392 2 snd_wavefront,snd_mpu401_uart
snd_seq_device 6080 4 snd_seq_oss,snd_seq,snd_opl3_lib,snd_rawmidi
shpchp 31880 0
pci_hotplug 26900 1 shpchp
snd 51460 17 snd_seq_oss,snd_seq,snd_pcm_oss,snd_mixer_oss,snd_cs4232,snd_wavefront,snd_wss_lib,snd_trident,snd_opl3_lib,snd_hwdep,snd_ac97_codec,snd_pcm,snd_timer,snd_mpu401,snd_ mpu401_uart,snd_rawmidi,snd_seq_device
ns558 4148 0
soundcore 6080 1 snd
gameport 10112 5 snd_trident,analog,ns558
sg 24712 0
evdev 9248 2
thermal 15120 0
processor 39136 1 thermal
fan 4056 0
button 5700 0
battery 9880 0
ac 3832 0
usb_storage 96000 0
ohci_hcd 23172 0
ehci_hcd 35424 0
usbhid 35136 0
usbcore 137232 5 usb_storage,ohci_hcd,ehci_hcd,usbhid
hid 39744 1 usbhid
sr_mod 14596 0
cdrom 33600 1 sr_mod
i2c_sis630 5824 0
sis5513 7288 0
ide_core 96876 1 sis5513
sis_agp 6900 1
sis 5716 2
drm 138240 3 sis
agpgart 29492 2 sis_agp,drm
i2c_core 20648 2 i2c_sis630,drm
sisfb 240008 1 sis
parport_pc 35556 1
lp 8964 0
ppdev 7192 0
parport 30924 3 parport_pc,lp,ppdev
psmouse 54536 0
8390 8692 0
8139too 23576 0
sis900 20180 0
mii 4372 2 8139too,sis900
rtc_cmos 10188 0
rtc_core 16304 1 rtc_cmos
rtc_lib 2324 1 rtc_core
ext3 126556 2
jbd 45512 1 ext3
mbcache 6488 2 ext2,ext3
sd_mod 25072 7
ata_generic 4504 0
pata_sis 9944 5
pata_acpi 3828 0
libata 157036 3 ata_generic,pata_sis,pata_acpi
scsi_mod 100500 5 sg,usb_storage,sr_mod,sd_mod,libata
module array from rc.conf
MODULES=(sis900 8139too !3c59x !winbond-840 !ne2k-pci 8390 psmouse parport ppdev lp parport_pc mii sis agpgart drm sis-agp sis5513 i2c-sis630 sr_mod cdrom hid usbhid ohci_hcd usb_storage snd_seq_oss snd_cs4232 snd_wavefront snd_wss_lib snd_trident snd_opl3_lib snd_hwdep snd_ac97_codec ac97_bus snd_pcm snd_timer snd_page_alloc snd_mpu401 snd_util_mem snd_mpu401_uart !pcspkr snd_rawmidi snd_seq_device snd soundcore)
thx

Thanks! I removed pcspkr already. So I have to check which modules are really dedicated to my audio hardware. I suspect none of the 3 you mention are actually needed. I guess I'll have to use lshwd or such.
Is OSSv4 lighter than ALSA. I've never used it before, and I don't really care about audio quality (sound comes out from crappy monitor speakers...).

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    INFO: Initializing Coyote HTTP/1.1 on http-8090
    10-sep-2007 14:16:11 org.apache.catalina.startup.Catalina load
    INFO: Initialization processed in 4312 ms
    10-sep-2007 14:16:12 org.apache.catalina.core.StandardService start
    INFO: Starting service Catalina
    10-sep-2007 14:16:12 org.apache.catalina.core.StandardEngine start
    INFO: Starting Servlet Engine: Apache Tomcat/5.5.23
    10-sep-2007 14:16:12 org.apache.catalina.core.StandardHost start
    INFO: XML validation disabled
    log4j:WARN No appenders could be found for logger (org.apache.catalina.startup.TldConfig).
    log4j:WARN Please initialize the log4j system properly.
    10-sep-2007 14:16:14 org.apache.commons.modeler.Registry registerComponent
    SEVERE: Null component Catalina:type=JspMonitor,name=jsp,WebModule=//localhost/SpringBikeApp,J2EEApplication=none,J2EEServer=none
    10-sep-2007 14:16:14 org.apache.catalina.core.ApplicationContext log
    SEVERE: StandardWrapper.Throwable
    java.lang.NoClassDefFoundError: javax/servlet/jsp/JspFactory
         at org.apache.jasper.servlet.JspServlet.init(JspServlet.java:100)
         at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1139)
         at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:966)
         at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3956)
         at org.apache.catalina.core.StandardContext.start(StandardContext.java:4230)
         at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
         at org.apache.catalina.core.StandardHost.start(StandardHost.java:736)
         at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
         at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
         at org.apache.catalina.core.StandardService.start(StandardService.java:448)
         at org.apache.catalina.core.StandardServer.start(StandardServer.java:700)
         at org.apache.catalina.startup.Catalina.start(Catalina.java:552)
         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
         at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
         at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
         at java.lang.reflect.Method.invoke(Unknown Source)
         at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:295)
         at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:433)
    10-sep-2007 14:16:14 org.apache.catalina.core.StandardContext loadOnStartup
    SEVERE: Servlet /SCWCD threw load() exception
    java.lang.NoClassDefFoundError: javax/servlet/jsp/JspFactory
         at org.apache.jasper.servlet.JspServlet.init(JspServlet.java:100)
         at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1139)
         at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:966)
         at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3956)
         at org.apache.catalina.core.StandardContext.start(StandardContext.java:4230)
         at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
         at org.apache.catalina.core.StandardHost.start(StandardHost.java:736)
         at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
         at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
         at org.apache.catalina.core.StandardService.start(StandardService.java:448)
         at org.apache.catalina.core.StandardServer.start(StandardServer.java:700)
         at org.apache.catalina.startup.Catalina.start(Catalina.java:552)
         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
         at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
         at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
         at java.lang.reflect.Method.invoke(Unknown Source)
         at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:295)
         at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:433)
    10-sep-2007 14:16:14 org.apache.commons.modeler.Registry registerComponent
    SEVERE: Null component Catalina:type=JspMonitor,name=jsp,WebModule=//localhost/SCWCD,J2EEApplication=none,J2EEServer=none
    10-sep-2007 14:16:14 org.apache.catalina.core.ApplicationContext log
    SEVERE: StandardWrapper.Throwable
    java.lang.NoClassDefFoundError: javax/servlet/jsp/JspFactory
         at org.apache.jasper.servlet.JspServlet.init(JspServlet.java:100)
         at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1139)
         at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:966)
         at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3956)
         at org.apache.catalina.core.StandardContext.start(StandardContext.java:4230)
         at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
         at org.apache.catalina.core.StandardHost.start(StandardHost.java:736)
         at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
         at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
         at org.apache.catalina.core.StandardService.start(StandardService.java:448)
         at org.apache.catalina.core.StandardServer.start(StandardServer.java:700)
         at org.apache.catalina.startup.Catalina.start(Catalina.java:552)
         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
         at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
         at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
         at java.lang.reflect.Method.invoke(Unknown Source)
         at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:295)
         at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:433)
    10-sep-2007 14:16:14 org.apache.catalina.core.StandardContext loadOnStartup
    SEVERE: Servlet threw load() exception
    java.lang.NoClassDefFoundError: javax/servlet/jsp/JspFactory
         at org.apache.jasper.servlet.JspServlet.init(JspServlet.java:100)
         at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1139)
         at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:966)
         at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3956)
         at org.apache.catalina.core.StandardContext.start(StandardContext.java:4230)
         at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
         at org.apache.catalina.core.StandardHost.start(StandardHost.java:736)
         at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
         at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
         at org.apache.catalina.core.StandardService.start(StandardService.java:448)
         at org.apache.catalina.core.StandardServer.start(StandardServer.java:700)
         at org.apache.catalina.startup.Catalina.start(Catalina.java:552)
         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
         at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
         at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
         at java.lang.reflect.Method.invoke(Unknown Source)
         at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:295)
         at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:433)
    10-sep-2007 14:16:14 org.apache.commons.modeler.Registry registerComponent
    SEVERE: Null component Catalina:type=JspMonitor,name=jsp,WebModule=//localhost/,J2EEApplication=none,J2EEServer=none
    10-sep-2007 14:16:14 org.apache.coyote.http11.Http11BaseProtocol start
    INFO: Starting Coyote HTTP/1.1 on http-8090
    10-sep-2007 14:16:15 org.apache.jk.common.ChannelSocket init
    INFO: JK: ajp13 listening on /0.0.0.0:8009
    10-sep-2007 14:16:15 org.apache.jk.server.JkMain start
    INFO: Jk running ID=0 time=0/187 config=null
    10-sep-2007 14:16:15 org.apache.catalina.storeconfig.StoreLoader load
    INFO: Find registry server-registry.xml at classpath resource
    10-sep-2007 14:16:15 org.apache.catalina.startup.Catalina start
    INFO: Server startup in 3578 ms
    Many Thanks in advance for any help!!
    Grz Barbera

    hi istvan,
    we are also migrating from websphere to netweaver.
    But in spring framework we r facing problems.
    We hav spring-beans.jar file in lib dir of Web Application. But When we are creating BeanFactory from xml as,
    BeanFactory beanFactory = new ClassPathXmlApplicationContext ("client-config.xml");
    clent-config.xml file contains :
    <?xml version="1.0" encoding="UTF-8"?>
    <!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">
    <beans>
         <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer" >
              <property name="location">
                   <value>conf/service-client/client.properties</value>
              </property>
         </bean></beans>
    But code is giving exception: ClassNotFoundException -org.springframework.beans.factory.config.PropertyPlaceholderConfigurer.
    Wat is the problem ?
    Kindly help.
    We are also using JAAS for authentication.We are refering above code from our LoginModules login() method.
    Regards,
    sagar.

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