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From: Neil Horman <nhorman@tuxdriver.com>
To: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
Cc: konstantin.ananyev@intel.com, stephen@networkplumber.org,
	paulmck@linux.ibm.com, marko.kovacevic@intel.com, dev@dpdk.org,
	gavin.hu@arm.com, dharmik.thakkar@arm.com, malvika.gupta@arm.com
Subject: Re: [dpdk-dev] [PATCH v9 0/4] lib/rcu: add RCU library supporting QSBR mechanism
Date: Wed, 1 May 2019 08:15:45 -0400	[thread overview]
Message-ID: <20190501121545.GA26521@hmswarspite.think-freely.org> (raw)
Message-ID: <20190501121545.tmLcZdBXiljyuz2IiXzOrKirTzOKGhm7UCrns_OnjDU@z> (raw)
In-Reply-To: <20190501035419.33524-1-honnappa.nagarahalli@arm.com>

On Tue, Apr 30, 2019 at 10:54:15PM -0500, Honnappa Nagarahalli wrote:
> Lock-less data structures provide scalability and determinism.
> They enable use cases where locking may not be allowed
> (for ex: real-time applications).
> 
I know this is version 9 of the patch, so I'm sorry for the late comment, but I
have to ask: Why re-invent this wheel?  There are already several Userspace RCU
libraries that are mature and carried by Linux and BSD distributions.  Why would
we throw another one into DPDK instead of just using whats already available,
mature and stable?

Neil


  parent reply	other threads:[~2019-05-01 12:16 UTC|newest]

Thread overview: 260+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-22  3:30 [dpdk-dev] [RFC 0/3] tqs: add thread quiescent state library Honnappa Nagarahalli
2018-11-22  3:30 ` [dpdk-dev] [RFC 1/3] log: add TQS log type Honnappa Nagarahalli
2018-11-27 22:24   ` Stephen Hemminger
2018-11-28  5:58     ` Honnappa Nagarahalli
2018-11-22  3:30 ` [dpdk-dev] [RFC 2/3] tqs: add thread quiescent state library Honnappa Nagarahalli
2018-11-24 12:18   ` Ananyev, Konstantin
2018-11-27 21:32     ` Honnappa Nagarahalli
2018-11-28 15:25       ` Ananyev, Konstantin
2018-12-07  7:27         ` Honnappa Nagarahalli
2018-12-07 17:29           ` Stephen Hemminger
2018-12-11  6:40             ` Honnappa Nagarahalli
2018-12-13 12:26               ` Burakov, Anatoly
2018-12-18  4:30                 ` Honnappa Nagarahalli
2018-12-18  6:31                   ` Stephen Hemminger
2018-12-12  9:29           ` Ananyev, Konstantin
2018-12-13  7:39             ` Honnappa Nagarahalli
2018-12-17 13:14               ` Ananyev, Konstantin
2018-11-22  3:30 ` [dpdk-dev] [RFC 3/3] test/tqs: Add API and functional tests Honnappa Nagarahalli
     [not found] ` <CGME20181122073110eucas1p17592400af6c0b807dc87e90d136575af@eucas1p1.samsung.com>
2018-11-22  7:31   ` [dpdk-dev] [RFC 0/3] tqs: add thread quiescent state library Ilya Maximets
2018-11-27 22:28 ` Stephen Hemminger
2018-11-27 22:49   ` Van Haaren, Harry
2018-11-28  5:31     ` Honnappa Nagarahalli
2018-11-28 23:23       ` Stephen Hemminger
2018-11-30  2:13         ` Honnappa Nagarahalli
2018-11-30 16:26           ` Luca Boccassi
2018-11-30 18:32             ` Stephen Hemminger
2018-11-30 20:20             ` Honnappa Nagarahalli
2018-11-30 20:56           ` Mattias Rönnblom
2018-11-30 23:44             ` Stephen Hemminger
2018-12-01 18:37               ` Honnappa Nagarahalli
2018-11-30  2:25     ` Honnappa Nagarahalli
2018-11-30 21:03       ` Mattias Rönnblom
2018-12-22  2:14 ` [dpdk-dev] [RFC v2 0/2] rcu: add RCU library supporting QSBR mechanism Honnappa Nagarahalli
2018-12-22  2:14   ` [dpdk-dev] [RFC v2 1/2] " Honnappa Nagarahalli
2019-01-15 11:39     ` Ananyev, Konstantin
2019-01-15 20:43       ` Honnappa Nagarahalli
2019-01-16 15:56         ` Ananyev, Konstantin
2019-01-18  6:48           ` Honnappa Nagarahalli
2019-01-18 12:14             ` Ananyev, Konstantin
2019-01-24 17:15               ` Honnappa Nagarahalli
2019-01-24 18:05                 ` Ananyev, Konstantin
2019-02-22  7:07                   ` Honnappa Nagarahalli
2018-12-22  2:14   ` [dpdk-dev] [RFC v2 2/2] test/rcu_qsbr: add API and functional tests Honnappa Nagarahalli
2018-12-23  7:30     ` Stephen Hemminger
2018-12-23 16:25       ` Paul E. McKenney
2019-01-18  7:04         ` Honnappa Nagarahalli
2019-02-22  7:04   ` [dpdk-dev] [RFC v3 0/5] rcu: add RCU library supporting QSBR mechanism Honnappa Nagarahalli
2019-02-22  7:04     ` [dpdk-dev] [RFC v3 1/5] " Honnappa Nagarahalli
2019-02-22  7:04     ` [dpdk-dev] [RFC v3 2/5] test/rcu_qsbr: add API and functional tests Honnappa Nagarahalli
2019-02-22  7:04     ` [dpdk-dev] [RFC v3 3/5] lib/rcu: add dynamic memory allocation capability Honnappa Nagarahalli
2019-02-22  7:04     ` [dpdk-dev] [RFC v3 4/5] test/rcu_qsbr: modify test cases for dynamic memory allocation Honnappa Nagarahalli
2019-02-22  7:04     ` [dpdk-dev] [RFC v3 5/5] lib/rcu: fix the size of register thread ID array size Honnappa Nagarahalli
2019-03-19  4:52 ` [dpdk-dev] [PATCH 0/3] lib/rcu: add RCU library supporting QSBR mechanism Honnappa Nagarahalli
2019-03-19  4:52   ` Honnappa Nagarahalli
2019-03-19  4:52   ` [dpdk-dev] [PATCH 1/3] rcu: " Honnappa Nagarahalli
2019-03-19  4:52     ` Honnappa Nagarahalli
2019-03-22 16:42     ` Ananyev, Konstantin
2019-03-22 16:42       ` Ananyev, Konstantin
2019-03-26  4:35       ` Honnappa Nagarahalli
2019-03-26  4:35         ` Honnappa Nagarahalli
2019-03-28 11:15         ` Ananyev, Konstantin
2019-03-28 11:15           ` Ananyev, Konstantin
2019-03-29  5:54           ` Honnappa Nagarahalli
2019-03-29  5:54             ` Honnappa Nagarahalli
2019-03-19  4:52   ` [dpdk-dev] [PATCH 2/3] test/rcu_qsbr: add API and functional tests Honnappa Nagarahalli
2019-03-19  4:52     ` Honnappa Nagarahalli
2019-03-19  4:52   ` [dpdk-dev] [PATCH 3/3] doc/rcu: add lib_rcu documentation Honnappa Nagarahalli
2019-03-19  4:52     ` Honnappa Nagarahalli
2019-03-25 11:34     ` Kovacevic, Marko
2019-03-25 11:34       ` Kovacevic, Marko
2019-03-26  4:43       ` Honnappa Nagarahalli
2019-03-26  4:43         ` Honnappa Nagarahalli
2019-03-27  5:52 ` [dpdk-dev] [PATCH v2 0/3] lib/rcu: add RCU library supporting QSBR mechanism Honnappa Nagarahalli
2019-03-27  5:52   ` Honnappa Nagarahalli
2019-03-27  5:52   ` [dpdk-dev] [PATCH v2 1/3] rcu: " Honnappa Nagarahalli
2019-03-27  5:52     ` Honnappa Nagarahalli
2019-03-27  5:52   ` [dpdk-dev] [PATCH v2 2/3] test/rcu_qsbr: add API and functional tests Honnappa Nagarahalli
2019-03-27  5:52     ` Honnappa Nagarahalli
2019-03-27  5:52   ` [dpdk-dev] [PATCH v2 3/3] doc/rcu: add lib_rcu documentation Honnappa Nagarahalli
2019-03-27  5:52     ` Honnappa Nagarahalli
2019-04-01 17:10 ` [dpdk-dev] [PATCH v3 0/3] lib/rcu: add RCU library supporting QSBR mechanism Honnappa Nagarahalli
2019-04-01 17:10   ` Honnappa Nagarahalli
2019-04-01 17:11   ` [dpdk-dev] [PATCH v3 1/3] rcu: " Honnappa Nagarahalli
2019-04-01 17:11     ` Honnappa Nagarahalli
2019-04-02 10:22     ` Ananyev, Konstantin
2019-04-02 10:22       ` Ananyev, Konstantin
2019-04-02 10:53       ` Ananyev, Konstantin
2019-04-02 10:53         ` Ananyev, Konstantin
2019-04-01 17:11   ` [dpdk-dev] [PATCH v3 2/3] test/rcu_qsbr: add API and functional tests Honnappa Nagarahalli
2019-04-01 17:11     ` Honnappa Nagarahalli
2019-04-02 10:55     ` Ananyev, Konstantin
2019-04-02 10:55       ` Ananyev, Konstantin
2019-04-01 17:11   ` [dpdk-dev] [PATCH v3 3/3] doc/rcu: add lib_rcu documentation Honnappa Nagarahalli
2019-04-01 17:11     ` Honnappa Nagarahalli
2019-04-10 11:20 ` [dpdk-dev] [PATCH v4 0/3] lib/rcu: add RCU library supporting QSBR mechanism Honnappa Nagarahalli
2019-04-10 11:20   ` Honnappa Nagarahalli
2019-04-10 11:20   ` [dpdk-dev] [PATCH v4 1/3] rcu: " Honnappa Nagarahalli
2019-04-10 11:20     ` Honnappa Nagarahalli
2019-04-10 18:14     ` Paul E. McKenney
2019-04-10 18:14       ` Paul E. McKenney
2019-04-11  4:35       ` Honnappa Nagarahalli
2019-04-11  4:35         ` Honnappa Nagarahalli
2019-04-11 15:26         ` Paul E. McKenney
2019-04-11 15:26           ` Paul E. McKenney
2019-04-12 20:21           ` Honnappa Nagarahalli
2019-04-12 20:21             ` Honnappa Nagarahalli
2019-04-15 16:51             ` Ananyev, Konstantin
2019-04-15 16:51               ` Ananyev, Konstantin
2019-04-15 19:46               ` Honnappa Nagarahalli
2019-04-15 19:46                 ` Honnappa Nagarahalli
2019-04-10 11:20   ` [dpdk-dev] [PATCH v4 2/3] test/rcu_qsbr: add API and functional tests Honnappa Nagarahalli
2019-04-10 11:20     ` Honnappa Nagarahalli
2019-04-10 15:26     ` Stephen Hemminger
2019-04-10 15:26       ` Stephen Hemminger
2019-04-10 16:15       ` Honnappa Nagarahalli
2019-04-10 16:15         ` Honnappa Nagarahalli
2019-04-10 11:20   ` [dpdk-dev] [PATCH v4 3/3] doc/rcu: add lib_rcu documentation Honnappa Nagarahalli
2019-04-10 11:20     ` Honnappa Nagarahalli
2019-04-12 20:20 ` [dpdk-dev] [PATCH v5 0/3] lib/rcu: add RCU library supporting QSBR mechanism Honnappa Nagarahalli
2019-04-12 20:20   ` Honnappa Nagarahalli
2019-04-12 20:20   ` [dpdk-dev] [PATCH v5 1/3] rcu: " Honnappa Nagarahalli
2019-04-12 20:20     ` Honnappa Nagarahalli
2019-04-12 22:06     ` Stephen Hemminger
2019-04-12 22:06       ` Stephen Hemminger
2019-04-12 22:24       ` Honnappa Nagarahalli
2019-04-12 22:24         ` Honnappa Nagarahalli
2019-04-12 23:06         ` Stephen Hemminger
2019-04-12 23:06           ` Stephen Hemminger
2019-04-15 12:24           ` Ananyev, Konstantin
2019-04-15 12:24             ` Ananyev, Konstantin
2019-04-15 15:38             ` Stephen Hemminger
2019-04-15 15:38               ` Stephen Hemminger
2019-04-15 17:39               ` Ananyev, Konstantin
2019-04-15 17:39                 ` Ananyev, Konstantin
2019-04-15 18:56                 ` Honnappa Nagarahalli
2019-04-15 18:56                   ` Honnappa Nagarahalli
2019-04-15 21:26                 ` Stephen Hemminger
2019-04-15 21:26                   ` Stephen Hemminger
2019-04-16  5:29                   ` Honnappa Nagarahalli
2019-04-16  5:29                     ` Honnappa Nagarahalli
2019-04-16 14:54                     ` Stephen Hemminger
2019-04-16 14:54                       ` Stephen Hemminger
2019-04-16 16:56                       ` Honnappa Nagarahalli
2019-04-16 16:56                         ` Honnappa Nagarahalli
2019-04-16 21:22                         ` Stephen Hemminger
2019-04-16 21:22                           ` Stephen Hemminger
2019-04-17  1:45                           ` Honnappa Nagarahalli
2019-04-17  1:45                             ` Honnappa Nagarahalli
2019-04-17 13:39                             ` Ananyev, Konstantin
2019-04-17 13:39                               ` Ananyev, Konstantin
2019-04-17 14:02                               ` Honnappa Nagarahalli
2019-04-17 14:02                                 ` Honnappa Nagarahalli
2019-04-17 14:18                               ` Thomas Monjalon
2019-04-17 14:18                                 ` Thomas Monjalon
2019-04-12 20:20   ` [dpdk-dev] [PATCH v5 2/3] test/rcu_qsbr: add API and functional tests Honnappa Nagarahalli
2019-04-12 20:20     ` Honnappa Nagarahalli
2019-04-12 20:20   ` [dpdk-dev] [PATCH v5 3/3] doc/rcu: add lib_rcu documentation Honnappa Nagarahalli
2019-04-12 20:20     ` Honnappa Nagarahalli
2019-04-15 17:29   ` [dpdk-dev] [PATCH v5 0/3] lib/rcu: add RCU library supporting QSBR mechanism Ananyev, Konstantin
2019-04-15 17:29     ` Ananyev, Konstantin
2019-04-16  5:10     ` Honnappa Nagarahalli
2019-04-16  5:10       ` Honnappa Nagarahalli
2019-04-17  4:13 ` [dpdk-dev] [PATCH v6 " Honnappa Nagarahalli
2019-04-17  4:13   ` Honnappa Nagarahalli
2019-04-17  4:13   ` [dpdk-dev] [PATCH v6 1/3] rcu: " Honnappa Nagarahalli
2019-04-17  4:13     ` Honnappa Nagarahalli
2019-04-19 19:19     ` Paul E. McKenney
2019-04-19 19:19       ` Paul E. McKenney
2019-04-23  1:08       ` Honnappa Nagarahalli
2019-04-23  1:08         ` Honnappa Nagarahalli
2019-04-17  4:13   ` [dpdk-dev] [PATCH v6 2/3] test/rcu_qsbr: add API and functional tests Honnappa Nagarahalli
2019-04-17  4:13     ` Honnappa Nagarahalli
2019-04-17  4:13   ` [dpdk-dev] [PATCH v6 3/3] doc/rcu: add lib_rcu documentation Honnappa Nagarahalli
2019-04-17  4:13     ` Honnappa Nagarahalli
2019-04-21 16:40   ` [dpdk-dev] [PATCH v6 0/3] lib/rcu: add RCU library supporting QSBR mechanism Thomas Monjalon
2019-04-21 16:40     ` Thomas Monjalon
2019-04-25 14:18     ` Honnappa Nagarahalli
2019-04-25 14:18       ` Honnappa Nagarahalli
2019-04-25 14:27       ` Honnappa Nagarahalli
2019-04-25 14:27         ` Honnappa Nagarahalli
2019-04-25 14:38       ` David Marchand
2019-04-25 14:38         ` David Marchand
2019-04-23  4:31 ` [dpdk-dev] [PATCH v7 " Honnappa Nagarahalli
2019-04-23  4:31   ` Honnappa Nagarahalli
2019-04-23  4:31   ` [dpdk-dev] [PATCH v7 1/3] rcu: " Honnappa Nagarahalli
2019-04-23  4:31     ` Honnappa Nagarahalli
2019-04-23  8:10     ` Paul E. McKenney
2019-04-23  8:10       ` Paul E. McKenney
2019-04-23 21:23       ` Honnappa Nagarahalli
2019-04-23 21:23         ` Honnappa Nagarahalli
2019-04-24 20:02         ` Jerin Jacob Kollanukkaran
2019-04-24 20:02           ` Jerin Jacob Kollanukkaran
2019-04-25  5:15           ` Honnappa Nagarahalli
2019-04-25  5:15             ` Honnappa Nagarahalli
2019-04-24 10:03     ` Ruifeng Wang (Arm Technology China)
2019-04-24 10:03       ` Ruifeng Wang (Arm Technology China)
2019-04-23  4:31   ` [dpdk-dev] [PATCH v7 2/3] test/rcu_qsbr: add API and functional tests Honnappa Nagarahalli
2019-04-23  4:31     ` Honnappa Nagarahalli
2019-04-23  4:31   ` [dpdk-dev] [PATCH v7 3/3] doc/rcu: add lib_rcu documentation Honnappa Nagarahalli
2019-04-23  4:31     ` Honnappa Nagarahalli
2019-04-24 10:12     ` Ruifeng Wang (Arm Technology China)
2019-04-24 10:12       ` Ruifeng Wang (Arm Technology China)
2019-04-26  4:39 ` [dpdk-dev] [PATCH v8 0/4] lib/rcu: add RCU library supporting QSBR mechanism Honnappa Nagarahalli
2019-04-26  4:39   ` Honnappa Nagarahalli
2019-04-26  4:39   ` [dpdk-dev] [PATCH v8 1/4] rcu: " Honnappa Nagarahalli
2019-04-26  4:39     ` Honnappa Nagarahalli
2019-04-26  8:13     ` Jerin Jacob Kollanukkaran
2019-04-26  8:13       ` Jerin Jacob Kollanukkaran
2019-04-28  3:25     ` Ruifeng Wang (Arm Technology China)
2019-04-28  3:25       ` Ruifeng Wang (Arm Technology China)
2019-04-29 20:33       ` Thomas Monjalon
2019-04-29 20:33         ` Thomas Monjalon
2019-04-30 10:51         ` Hemant Agrawal
2019-04-30 10:51           ` Hemant Agrawal
2019-04-26  4:39   ` [dpdk-dev] [PATCH v8 2/4] test/rcu_qsbr: add API and functional tests Honnappa Nagarahalli
2019-04-26  4:39     ` Honnappa Nagarahalli
2019-04-29 20:35     ` Thomas Monjalon
2019-04-29 20:35       ` Thomas Monjalon
2019-04-30  4:20       ` Honnappa Nagarahalli
2019-04-30  4:20         ` Honnappa Nagarahalli
2019-04-30  7:58         ` Thomas Monjalon
2019-04-30  7:58           ` Thomas Monjalon
2019-04-26  4:39   ` [dpdk-dev] [PATCH v8 3/4] doc/rcu: add lib_rcu documentation Honnappa Nagarahalli
2019-04-26  4:39     ` Honnappa Nagarahalli
2019-04-26  4:40   ` [dpdk-dev] [PATCH v8 4/4] doc: added RCU to the release notes Honnappa Nagarahalli
2019-04-26  4:40     ` Honnappa Nagarahalli
2019-04-26 12:04   ` [dpdk-dev] [PATCH v8 0/4] lib/rcu: add RCU library supporting QSBR mechanism Ananyev, Konstantin
2019-04-26 12:04     ` Ananyev, Konstantin
2019-05-01  3:54 ` [dpdk-dev] [PATCH v9 " Honnappa Nagarahalli
2019-05-01  3:54   ` Honnappa Nagarahalli
2019-05-01  3:54   ` [dpdk-dev] [PATCH v9 1/4] rcu: " Honnappa Nagarahalli
2019-05-01  3:54     ` Honnappa Nagarahalli
2019-05-01  3:54   ` [dpdk-dev] [PATCH v9 2/4] test/rcu_qsbr: add API and functional tests Honnappa Nagarahalli
2019-05-01  3:54     ` Honnappa Nagarahalli
2019-05-03 14:31     ` David Marchand
2019-05-03 14:31       ` David Marchand
2019-05-06 23:16       ` Honnappa Nagarahalli
2019-05-06 23:16         ` Honnappa Nagarahalli
2019-05-01  3:54   ` [dpdk-dev] [PATCH v9 3/4] doc/rcu: add lib_rcu documentation Honnappa Nagarahalli
2019-05-01  3:54     ` Honnappa Nagarahalli
2019-05-01 11:37     ` Mcnamara, John
2019-05-01 11:37       ` Mcnamara, John
2019-05-01 21:20       ` Honnappa Nagarahalli
2019-05-01 21:20         ` Honnappa Nagarahalli
2019-05-01 21:32         ` Thomas Monjalon
2019-05-01 21:32           ` Thomas Monjalon
2019-05-01  3:54   ` [dpdk-dev] [PATCH v9 4/4] doc: added RCU to the release notes Honnappa Nagarahalli
2019-05-01  3:54     ` Honnappa Nagarahalli
2019-05-01 11:31     ` Mcnamara, John
2019-05-01 11:31       ` Mcnamara, John
2019-05-01 12:15   ` Neil Horman [this message]
2019-05-01 12:15     ` [dpdk-dev] [PATCH v9 0/4] lib/rcu: add RCU library supporting QSBR mechanism Neil Horman
2019-05-01 14:56     ` Honnappa Nagarahalli
2019-05-01 14:56       ` Honnappa Nagarahalli
2019-05-01 18:05       ` Neil Horman
2019-05-01 18:05         ` Neil Horman
2019-05-01 21:18         ` Honnappa Nagarahalli
2019-05-01 21:18           ` Honnappa Nagarahalli
2019-05-01 23:36   ` Thomas Monjalon
2019-05-01 23:36     ` Thomas Monjalon

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