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From: "Liguzinski, WojciechX" <wojciechx.liguzinski@intel.com>
To: dev@dpdk.org, jasvinder.singh@intel.com, cristian.dumitrescu@intel.com
Cc: savinay.dharmappa@intel.com, megha.ajmera@intel.com
Subject: [dpdk-dev] [RFC PATCH v1 0/3] Add PIE support for HQoS library
Date: Wed,  9 Jun 2021 11:53:34 +0100
Message-ID: <20210609105337.70405-1-wojciechx.liguzinski@intel.com> (raw)
In-Reply-To: <20210524105822.63171-1-wojciechx.liguzinski@intel.com>

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 active queue management (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 |   6 +-
 examples/ip_pipeline/tmgr.c              |   6 +-
 examples/qos_sched/app_thread.c          |   1 -
 examples/qos_sched/cfg_file.c            |  82 ++++-
 examples/qos_sched/init.c                |   7 +-
 examples/qos_sched/profile.cfg           | 196 ++++++++----
 lib/sched/meson.build                    |  10 +-
 lib/sched/rte_pie.c                      |  79 +++++
 lib/sched/rte_pie.h                      | 387 +++++++++++++++++++++++
 lib/sched/rte_sched.c                    | 229 ++++++++++----
 lib/sched/rte_sched.h                    |  53 +++-
 12 files changed, 876 insertions(+), 181 deletions(-)
 create mode 100644 lib/sched/rte_pie.c
 create mode 100644 lib/sched/rte_pie.h

-- 
2.17.1


  parent reply	other threads:[~2021-06-09 10:54 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-24 10:58 [dpdk-dev] [RFC PATCH " Liguzinski, WojciechX
2021-05-24 10:58 ` [dpdk-dev] [RFC PATCH 1/3] sched: add pie based congestion management Liguzinski, WojciechX
2021-05-25  9:16   ` Morten Brørup
2021-06-09  8:36     ` Liguzinski, WojciechX
2021-06-09 12:35       ` Morten Brørup
2021-05-24 10:58 ` [dpdk-dev] [RFC PATCH 2/3] example/qos_sched: add pie support Liguzinski, WojciechX
2021-05-24 10:58 ` [dpdk-dev] [RFC PATCH 3/3] example/ip_pipeline: " Liguzinski, WojciechX
2021-05-24 16:19 ` [dpdk-dev] [RFC PATCH 0/3] Add PIE support for HQoS library Stephen Hemminger
2021-05-25  8:56 ` Morten Brørup
2021-06-07 13:01   ` Liguzinski, WojciechX
2021-06-09 10:53 ` Liguzinski, WojciechX [this message]
2021-06-09 10:53   ` [dpdk-dev] [RFC PATCH v1 1/3] sched: add PIE based congestion management Liguzinski, WojciechX
2021-06-09 10:53   ` [dpdk-dev] [RFC PATCH v1 2/3] example/qos_sched: add PIE support Liguzinski, WojciechX
2021-06-09 10:53   ` [dpdk-dev] [RFC PATCH v1 3/3] example/ip_pipeline: " Liguzinski, WojciechX
2021-06-15  9:01   ` [dpdk-dev] [RFC PATCH v2 0/3] Add PIE support for HQoS library Liguzinski, WojciechX
2021-06-15  9:01     ` [dpdk-dev] [RFC PATCH v2 1/3] sched: add PIE based congestion management Liguzinski, WojciechX
2021-06-15  9:01     ` [dpdk-dev] [RFC PATCH v2 2/3] example/qos_sched: add PIE support Liguzinski, WojciechX
2021-06-15 12:23       ` Morten Brørup
2021-06-15  9:02     ` [dpdk-dev] [RFC PATCH v2 3/3] example/ip_pipeline: " Liguzinski, WojciechX
2021-06-21  7:35     ` [dpdk-dev] [RFC PATCH v3 0/3] Add PIE support for HQoS library Liguzinski, WojciechX
2021-06-21  7:35       ` [dpdk-dev] [RFC PATCH v3 1/3] sched: add PIE based congestion management Liguzinski, WojciechX
2021-06-21 18:17         ` Stephen Hemminger
2021-06-22  7:39           ` Liguzinski, WojciechX
2021-06-21  7:35       ` [dpdk-dev] [RFC PATCH v3 2/3] example/qos_sched: add PIE support Liguzinski, WojciechX
2021-06-21  7:35       ` [dpdk-dev] [RFC PATCH v3 3/3] example/ip_pipeline: " Liguzinski, WojciechX
2021-07-05  8:04       ` [dpdk-dev] [RFC PATCH v4 0/3] Add PIE support for HQoS library Liguzinski, WojciechX
2021-07-05  8:04         ` [dpdk-dev] [RFC PATCH v4 1/3] sched: add PIE based congestion management Liguzinski, WojciechX
2021-07-16 13:20           ` Dumitrescu, Cristian
2021-07-16 15:11           ` Dumitrescu, Cristian
2021-07-05  8:04         ` [dpdk-dev] [RFC PATCH v4 2/3] example/qos_sched: add pie support Liguzinski, WojciechX
2021-07-05  8:04         ` [dpdk-dev] [RFC PATCH v3 3/3] example/ip_pipeline: add PIE support Liguzinski, WojciechX
2021-07-16 12:46         ` [dpdk-dev] [RFC PATCH v4 0/3] Add PIE support for HQoS library Dumitrescu, Cristian

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