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<font size="2" face="Dialog">Hi,</font> </p>
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<font size="2" face="Dialog">If you use a e1000(e) with the generic driver, you have to disable the interrupt throttling of the e1000(e):</font> </p>
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<font size="2" face="Dialog">Load the e1000 kernel module with options:</font> </p>
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<font size="2" face="Dialog">modprobe e1000e TxIntDelay=0 RxIntDelay=0 RxAbsIntDelay=0 TxAbsIntDelay=0 InterruptThrottleRate=0</font> </p>
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<font size="2" face="Dialog">Regards</font> </p>
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<font size="2" face="Dialog">Martin</font><br><br>>>> "Dr.-Ing. Wilhelm Hagemeister" <hm@igh-essen.com> 21/9/2011 21:33 >>><br>Hello Jordi,<br><br>is seems that Intel NIC's are optimized for performance and bandwith but<br>not for realtime behavior (which is not really necessary normally). We<br>experienced that some combinations of kernel version, EtherCat Master<br>version and NIC don't work properly. Also we see latency issues. I can't<br>really describe what the problem is. Mostly it happens like, people are<br>reporting frame losses or problems with synchronization with Intel-NIC's<br>and problems go away when they change on the same system to a Realtek<br>chipset.<br><br>Anyway we also have systems running well with e100, e1000 and e1000e so<br>that does not mean you should not try it....<br><br>With kind regards<br><br>Wilhelm.<br><br>Am 21.09.2011 13:36, schrieb Jordi Blanch Carles:<br>> Hello Wilhelm,<br>><br>> thank you for your fast answer, we'll take it into account. Could you<br>> tell me which kind of problems have you found working with Intel NICs?<br>><br><br><br>_______________________________________________<br>etherlab-users mailing list<br>etherlab-users@etherlab.org<br><a href="http://lists.etherlab.org/mailman/listinfo/etherlab-users">http://lists.etherlab.org/mailman/listinfo/etherlab-users</a><br>
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