[dpdk-dev] [RFC PATCH 0/3] Add PIE support for HQoS library
Liguzinski, WojciechX
wojciechx.liguzinski at intel.com
Mon May 24 12:58:19 CEST 2021
DPDK sched library is equipped with mechanism that secures it from the bufferbloat problem
which is a situation when excess buffers in the network cause high latency and latency
variation. Currently, it supports RED for queue congestion control (which is designed
to control the queue length but it does not control latency directly and is now being
obsoleted ). However, more advanced queue management is required to address this problem
and provide desirable quality of service to users.
This solution (RFC) proposes usage of new algorithm called "PIE" (Proportional Integral
controller Enhanced) that can effectively and directly control queuing latency to address
the bufferbloat problem.
The implementation of mentioned functionality includes modification of existing and
adding a new set of data structures to the library, adding PIE related APIs.
This affects structures in public API/ABI. That is why deprecation notice is going
to be prepared and sent.
Liguzinski, WojciechX (3):
sched: add pie based congestion management
example/qos_sched: add pie support
example/ip_pipeline: add pie support
config/rte_config.h | 1 -
drivers/net/softnic/rte_eth_softnic_tm.c | 4 +-
examples/ip_pipeline/tmgr.c | 4 +-
examples/qos_sched/app_thread.c | 1 -
examples/qos_sched/cfg_file.c | 82 +++++++--
examples/qos_sched/init.c | 5 +-
examples/qos_sched/profile.cfg | 196 +++++++++++++-------
lib/sched/meson.build | 10 +-
lib/sched/rte_sched.c | 220 +++++++++++++++++------
lib/sched/rte_sched.h | 53 ++++--
10 files changed, 411 insertions(+), 165 deletions(-)
--
2.17.1
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