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What is the tx_restart_queue?
What causes tx_restart_queue to increment?
Is it normal to see packet drops when tx_restart_queue increments?
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I have seen incrementing tx_restart_queue as well, but I can't find any good documentation describing exactly what it means. I found this thread from several years ago:
http://marc.info/?l=e1000-devel&m=124035017819661&w=2 http://marc.info/?l=e1000-devel&m=124035017819661&w=2
I don't know if the reasoning is still valid. It seems to suggest that you don't have a high enough interrupt rate when sending. Is there anything about your configuration that would affect your interrupt rate?
Intel would provide a useful service to the community if they would document what each statistic shown in ethool -S means!
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