HI, I wonder if e1000 Linux kernel driver working with Linux2.6.8. When I do the ipbenchmark test, with the packets size downing, the kernel seems "crashed". The error info below appeared: Losing too many ticks! TSC cannot be used as a time source. Possible reasons for this are: You're running with Speedstep, You don't have DMA enabled for your hard disk (see hdparm), Incorrect TSC synchronization on an SMP system (see dmesg). Falling back to a sane timesource now. The workload is totally around 1000Mbps(UDP echo tx+rx), generated by four boxes. Only the packet size of 1024B can work but with high CPU utilisation(90%) and low throughput(5%). When the packet size is down to 512, then I got the error above. What's the reason for these?? Does it mean the driver got bug or... Is it better if I change kernel version, say older or newer?? I am new to performance test and thanks for any point:) Rita - : send the line "unsubscribe linux-net" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
