Hi The intel e1000 drivers use interrupt throttling to reduce the load for the kernel. However, if you need a bus update rate of > 2kHz you have to disable this throttling, otherwise you will notice lots of missed datagrams.
To disable or lower this interrupt throttling you can give the driver start parameters: 1) manually rmmod e1000 modprobe e1000 RxIntDelay=0 RxAbsIntDelay=0 InterruptThrottleRate=0 2) Automagically apply module options (debian systems) Create a file /etc/modprobe.d/e1000-disable-irq-throttling.conf that contains options e1000 RxIntDelay=0 RxAbsIntDelay=0 InterruptThrottleRate=0 With these parameters set we achieve an update rate of 4kHz without dropouts. Regards Martin Note: This e-mail is for the named person's use only. It may contain confidential and/or privileged information. If you have received this e-mail in error, please notify the sender immediately and delete the material from any system. Any unauthorized copying, disclosure, distribution or other use of this information by persons or entities other than the intended recipient is prohibited. Thank You.
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