I've think I have gotten to the true cause of my VPN/DSL performance issue on Ubuntu 9.10 SRSS 4.2. It is the black eye of a number of Linux distributions, Pulse Audio.
I was experiencing horrible performance over VPN/DSL. I removed pulse audio with the following command: sudo apt-get remove pulseaudio I then rebooted. The latency from the utcapture command dropped from 32066 to 35. So, now how do we fix it? Via my Netopia DSL modem admin interface I could see many tx packet discards. It looks like pulse audio is transmitting an huge amount of data which clobbers the performance. What is causing pulse audio to transmit so much data when I am not using any audio applications? Thanks, PLA
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