Take the 2-minute tour ×
Server Fault is a question and answer site for professional system and network administrators. It's 100% free, no registration required.

Other than tx and rx being the transmit and recieve, can anyone explain what the fields mean in ethtool -c's (Coalescing output) and what effect they have on how coalescing works?

Coalesce parameters for eth0:
Adaptive RX: off  TX: off
stats-block-usecs: 999936
sample-interval: 0
pkt-rate-low: 0
pkt-rate-high: 0

rx-usecs: 18
rx-frames: 12
rx-usecs-irq: 18
rx-frames-irq: 2

tx-usecs: 80
tx-frames: 20
tx-usecs-irq: 18
tx-frames-irq: 2

rx-usecs-low: 0
rx-frame-low: 0
tx-usecs-low: 0
tx-frame-low: 0

rx-usecs-high: 0
rx-frame-high: 0
tx-usecs-high: 0
tx-frame-high: 0
share|improve this question
add comment

1 Answer 1

up vote 4 down vote accepted

the delay between the tx and rx events and the generation of interrupts for those events.

rx-frames[-irq] rx-usecs[-irq] tx-frames[-irq] tx-usecs[-irq]

The frames parameters specify how many packets are received/transmitted before generating an interrupt. The usecs parameters specify how many microseconds after at least 1 packet is received/transmitted before generating an interrupt. The [-irq] parameters are the corresponding delays in updating the status when the interrupt is disabled.

share|improve this answer
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.