Table of Contents
Networking Session
Discussion Topics
Main Issues
Solution: better upwards feedback
Networking Session
Discussion Topics
hw/sw interface
performance
latency
bandwidth
Driver quality
size of code
IFlib
RSS/NUMA
Flow Affinity
multiqueue
BPF MQ Patches
Pacing/Back Pressure
MPTCP
Conformance tests?
Main Issues
Flow table does not work, does not scale
IPv4/IPv6 Performance issues
routing lookups are expensive
RCU?
Locking?
Data structure (Luigi/Marko paper)
Pacing?
Netflix (lawrence)
inter packet gap
Solution: better upwards feedback
Pause frame notifications, ECN
tcp-info fields
Add this feedback to the kqueue interface
congestion filters
IPV6 Specific Performance issues are unknown