> On May 12, 2016, at 4:31 AM, Hal Murray <hmur...@megapathdsl.net> wrote: > > > g...@rellim.com said: >> Easy to use, but in practice I have not found the RasPi ethernet to perform >> any worse than a GigE port on a motherboard. > > Most of the GigE chips have the option to batch interrupts. That's good for > throughput since it reduces the CPU load due to interrupts but bad for things > like NTP since it adds latency and probably jitter. > > I don't have any numbers handy. It would be interesting to run a few > experiments. > > Does anybody have the recipe handy for disabling that?
`ethtool` is what you are looking for. There are multiple options that might have the effect you mention above. `ethtool -c eth0` will show you how the device is currently configured. `ethtool -C eth0` allows you to change the settings.
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