[Cerowrt-devel] [Bloat] [Codel] FQ_Codel lwn draft article review

Michael Richardson mcr at sandelman.ca
Wed Nov 28 13:37:37 EST 2012

>>>>> "Paul" == Paul E McKenney <paulmck at linux.vnet.ibm.com> writes:
    Paul> You lost me on this one.  It looks to me like
    Paul> net/sched/sch_fq_codel.c 
    Paul> in fact does hash packets into flows, so FQ-CoDel is
    Paul> stochastic in the 
    Paul> the same sense that SFQ is.  In particular, FQ-CoDel can hash a thin
    Paul> session into the same flow as a thick session, which really is the
    Paul> birthday effect.

Silly question from someone who should read more code, but...
if one is hashing the packet to pick a flow bucket, shouldn't this hash
occur before any application of address/port translation. ? (NAT)

(Maybe I've just found out that IPv6 + CoDel will be a killer

More information about the Cerowrt-devel mailing list