--cdg > --bwlimit

Posted May 21, 2015 11:32 UTC (Thu) by gmatht (subscriber, #58961)
Parent article: Delay-gradient congestion control

If CDG allows itself to be muscled out of a contended link in that manner, one can predict with high confidence that it will not find many users.

Perhaps, but its worth noting that in some niches that would be a feature and not a bug. It would be nice to be able to just do `rsync --cdg` inplace of `rsync --bwlimit 5000` and go as fast as possible without slowing down other users.

--cdg > --bwlimit

Posted May 27, 2015 18:57 UTC (Wed) by mtaht (guest, #11087) [Link]

I long ago posted patches to the rsync folk that would allow it to use alternate congestion control algorithms and diffserv. The patches sat in their patchwork for a while and got improved a bit, but I don't think they ever made their mainline tree.

The initial patches were here:

https://lists.samba.org/archive/rsync/2011-November/02711...

As rsync is often tunneled over ssh, I have long thought we could add stuff to ssh to better chose it's underlying cc, also.