On Fri, 2016-10-21 at 10:45 +0200, Jiri Kosina wrote: > The original reason [1] for having hidden qdiscs (potential scalability > issues in qdisc_match_from_root() with single linked list in case of large > amount of qdiscs) has been invalidated by 59cc1f61f0 ("net: sched: convert > qdisc linked list to hashtable"). > > This allows us for bringing more clarity and determinism into the dump by > making default pfifo qdiscs visible. > > [1] > http://lkml.kernel.org/r/1460732328.10638.74.ca...@edumazet-glaptop3.roam.corp.google.com > > Signed-off-by: Jiri Kosina <jkos...@suse.cz> > ---
Some of us are dealing with huge HTB hierarchies, so adding default fifo in the dump will add more data pumped from the kernel. BwE [1] for instance dumps qdisc/classes every 5 seconds. I guess we'll need to not pull this patch in our kernels. This reminds me of an HTB patch to avoid dumping rate estimates for HTB. I will send it today. [1] http://static.googleusercontent.com/media/research.google.com/en//pubs/archive/43838.pdf