[OpenAFS-devel] Bad AFS performance over wide area due to packet fragmentation problems

Derrick Brashear shadow@gmail.com
Thu, 21 Aug 2008 09:37:10 -0400


> Ideally, RX would be adaptive and stop using jumbograms when they cause
> problems, but I understand that the algorithm to detect those reliably can
> be challenging.

I'd actually like to do something like this. We have path mtu
discovery code for some platforms (not currently enabled, in 1.5.x
only, look at ADAPT_PMTU ifdef'd code), incidentally, but until it's
there for more than Solaris and Linux there's limited value to it.