From: Phil Yang <phil.yang@arm.com>
To: thomas@monjalon.net, john.mcnamara@intel.com,
Honnappa.Nagarahalli@arm.com, drc@linux.vnet.ibm.com,
dev@dpdk.org
Cc: david.marchand@redhat.com, jerinj@marvell.com,
konstantin.ananyev@intel.com, Ola.Liljedahl@arm.com,
bruce.richardson@intel.com, Ruifeng.Wang@arm.com, nd@arm.com,
Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>,
Marko Kovacevic <marko.kovacevic@intel.com>
Subject: [dpdk-dev] [PATCH v8 1/3] doc: add optimizations using C11 atomic built-ins
Date: Thu, 16 Jul 2020 12:53:42 +0800 [thread overview]
Message-ID: <1594875225-5850-2-git-send-email-phil.yang@arm.com> (raw)
In-Reply-To: <1594875225-5850-1-git-send-email-phil.yang@arm.com>
Add information about possible optimizations using C11 atomic built-ins.
Signed-off-by: Phil Yang <phil.yang@arm.com>
Signed-off-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
---
doc/guides/prog_guide/writing_efficient_code.rst | 59 +++++++++++++++++++++++-
1 file changed, 58 insertions(+), 1 deletion(-)
diff --git a/doc/guides/prog_guide/writing_efficient_code.rst b/doc/guides/prog_guide/writing_efficient_code.rst
index 849f63e..53a1ca1 100644
--- a/doc/guides/prog_guide/writing_efficient_code.rst
+++ b/doc/guides/prog_guide/writing_efficient_code.rst
@@ -167,7 +167,13 @@ but with the added cost of lower throughput.
Locks and Atomic Operations
---------------------------
-Atomic operations imply a lock prefix before the instruction,
+This section describes some key considerations when using locks and atomic
+operations in the DPDK environment.
+
+Locks
+~~~~~
+
+On x86, atomic operations imply a lock prefix before the instruction,
causing the processor's LOCK# signal to be asserted during execution of the following instruction.
This has a big impact on performance in a multicore environment.
@@ -176,6 +182,57 @@ It can often be replaced by other solutions like per-lcore variables.
Also, some locking techniques are more efficient than others.
For instance, the Read-Copy-Update (RCU) algorithm can frequently replace simple rwlocks.
+Atomic Operations: Use C11 Atomic Built-ins
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+DPDK generic rte_atomic operations are implemented by __sync built-ins. These
+__sync built-ins result in full barriers on aarch64, which are unnecessary
+in many use cases. They can be replaced by __atomic built-ins that conform to
+the C11 memory model and provide finer memory order control.
+
+So replacing the rte_atomic operations with __atomic built-ins might improve
+performance for aarch64 machines.
+
+Some typical optimization cases are listed below:
+
+Atomicity
+^^^^^^^^^
+
+Some use cases require atomicity alone, the ordering of the memory operations
+does not matter. For example, the packet statistics counters need to be
+incremented atomically but do not need any particular memory ordering.
+So, RELAXED memory ordering is sufficient.
+
+One-way Barrier
+^^^^^^^^^^^^^^^
+
+Some use cases allow for memory reordering in one way while requiring memory
+ordering in the other direction.
+
+For example, the memory operations before the spinlock lock are allowed to
+move to the critical section, but the memory operations in the critical section
+are not allowed to move above the lock. In this case, the full memory barrier
+in the compare-and-swap operation can be replaced with ACQUIRE memory order.
+On the other hand, the memory operations after the spinlock unlock are allowed
+to move to the critical section, but the memory operations in the critical
+section are not allowed to move below the unlock. So the full barrier in the
+store operation can use RELEASE memory order.
+
+Reader-Writer Concurrency
+^^^^^^^^^^^^^^^^^^^^^^^^^
+
+Lock-free reader-writer concurrency is one of the common use cases in DPDK.
+
+The payload or the data that the writer wants to communicate to the reader,
+can be written with RELAXED memory order. However, the guard variable should
+be written with RELEASE memory order. This ensures that the store to guard
+variable is observable only after the store to payload is observable.
+
+Correspondingly, on the reader side, the guard variable should be read
+with ACQUIRE memory order. The payload or the data the writer communicated,
+can be read with RELAXED memory order. This ensures that, if the store to
+guard variable is observable, the store to payload is also observable.
+
Coding Considerations
---------------------
--
2.7.4
next prev parent reply other threads:[~2020-07-16 4:58 UTC|newest]
Thread overview: 219+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-10 17:49 [dpdk-dev] [PATCH 00/10] generic rte atomic APIs deprecate proposal Phil Yang
2020-03-10 17:49 ` [dpdk-dev] [PATCH 01/10] doc: add generic atomic deprecation section Phil Yang
2020-03-10 17:49 ` [dpdk-dev] [PATCH 02/10] devtools: prevent use of rte atomic APIs in future patches Phil Yang
2020-03-10 17:49 ` [dpdk-dev] [PATCH 03/10] vhost: optimize broadcast rarp sync with c11 atomic Phil Yang
2020-03-10 17:49 ` [dpdk-dev] [PATCH 04/10] ipsec: optimize with c11 atomic for sa outbound sqn update Phil Yang
2020-03-10 17:49 ` [dpdk-dev] [PATCH 05/10] service: remove rte prefix from static functions Phil Yang
2020-03-10 17:49 ` [dpdk-dev] [PATCH 06/10] service: remove redundant code Phil Yang
2020-03-10 17:49 ` [dpdk-dev] [PATCH 07/10] service: avoid race condition for MT unsafe service Phil Yang
2020-03-10 17:49 ` [dpdk-dev] [PATCH 08/10] service: identify service running on another core correctly Phil Yang
2020-03-10 17:49 ` [dpdk-dev] [PATCH 09/10] service: optimize with c11 one-way barrier Phil Yang
2020-03-10 17:49 ` [dpdk-dev] [PATCH 10/10] service: relax barriers with C11 atomic operations Phil Yang
2020-03-12 7:44 ` [dpdk-dev] [PATCH v2 00/10] generic rte atomic APIs deprecate proposal Phil Yang
2020-03-12 7:44 ` [dpdk-dev] [PATCH v2 01/10] doc: add generic atomic deprecation section Phil Yang
2020-03-12 7:44 ` [dpdk-dev] [PATCH v2 02/10] devtools: prevent use of rte atomic APIs in future patches Phil Yang
2020-03-12 7:44 ` [dpdk-dev] [PATCH v2 03/10] vhost: optimize broadcast rarp sync with c11 atomic Phil Yang
2020-03-12 7:44 ` [dpdk-dev] [PATCH v2 04/10] ipsec: optimize with c11 atomic for sa outbound sqn update Phil Yang
2020-03-12 7:44 ` [dpdk-dev] [PATCH v2 05/10] service: remove rte prefix from static functions Phil Yang
2020-03-12 7:44 ` [dpdk-dev] [PATCH v2 06/10] service: remove redundant code Phil Yang
2020-03-12 7:44 ` [dpdk-dev] [PATCH v2 07/10] service: avoid race condition for MT unsafe service Phil Yang
2020-03-12 7:44 ` [dpdk-dev] [PATCH v2 08/10] service: identify service running on another core correctly Phil Yang
2020-03-12 7:44 ` [dpdk-dev] [PATCH v2 09/10] service: optimize with c11 one-way barrier Phil Yang
2020-03-12 7:44 ` [dpdk-dev] [PATCH v2 10/10] service: relax barriers with C11 atomic operations Phil Yang
2020-03-17 1:17 ` [dpdk-dev] [PATCH v3 00/12] generic rte atomic APIs deprecate proposal Phil Yang
2020-03-17 1:17 ` [dpdk-dev] [PATCH v3 01/12] doc: add generic atomic deprecation section Phil Yang
2020-03-17 1:17 ` [dpdk-dev] [PATCH v3 02/12] devtools: prevent use of rte atomic APIs in future patches Phil Yang
2020-03-17 1:17 ` [dpdk-dev] [PATCH v3 03/12] eal/build: add libatomic dependency for 32-bit clang Phil Yang
2020-04-24 6:08 ` Phil Yang
2020-03-17 1:17 ` [dpdk-dev] [PATCH v3 04/12] build: remove redundant code Phil Yang
2020-04-24 6:14 ` Phil Yang
2020-03-17 1:17 ` [dpdk-dev] [PATCH v3 05/12] vhost: optimize broadcast rarp sync with c11 atomic Phil Yang
2020-04-23 16:54 ` [dpdk-dev] [PATCH v2] " Phil Yang
2020-04-27 8:57 ` Maxime Coquelin
2020-04-28 16:06 ` Maxime Coquelin
2020-03-17 1:17 ` [dpdk-dev] [PATCH v3 06/12] ipsec: optimize with c11 atomic for sa outbound sqn update Phil Yang
2020-03-23 18:48 ` Ananyev, Konstantin
2020-03-23 19:07 ` Honnappa Nagarahalli
2020-03-23 19:18 ` Ananyev, Konstantin
2020-03-23 20:20 ` Honnappa Nagarahalli
2020-03-24 13:10 ` Ananyev, Konstantin
2020-03-24 13:21 ` Ananyev, Konstantin
2020-03-24 10:37 ` Phil Yang
2020-03-24 11:03 ` Ananyev, Konstantin
2020-03-25 9:38 ` Phil Yang
2020-04-23 17:16 ` [dpdk-dev] [PATCH v2] " Phil Yang
2020-04-23 17:45 ` Jerin Jacob
2020-04-24 4:49 ` Phil Yang
2020-04-23 18:10 ` Ananyev, Konstantin
2020-04-24 4:35 ` Phil Yang
2020-04-24 4:33 ` [dpdk-dev] [PATCH v3] " Phil Yang
2020-04-24 11:17 ` Ananyev, Konstantin
2020-05-09 21:51 ` Akhil Goyal
2020-03-17 1:17 ` [dpdk-dev] [PATCH v3 07/12] service: remove rte prefix from static functions Phil Yang
2020-04-03 11:57 ` Van Haaren, Harry
2020-04-08 10:14 ` Phil Yang
2020-04-08 10:36 ` Van Haaren, Harry
2020-04-08 10:49 ` Phil Yang
2020-04-05 21:35 ` Honnappa Nagarahalli
2020-04-08 10:14 ` Phil Yang
2020-04-23 16:31 ` [dpdk-dev] [PATCH v2 0/6] use c11 atomics for service core lib Phil Yang
2020-04-23 16:31 ` [dpdk-dev] [PATCH v2 1/6] service: fix race condition for MT unsafe service Phil Yang
2020-04-29 16:51 ` Van Haaren, Harry
2020-04-29 22:48 ` Honnappa Nagarahalli
2020-05-01 14:21 ` Van Haaren, Harry
2020-05-01 14:56 ` Honnappa Nagarahalli
2020-05-01 17:51 ` Van Haaren, Harry
2020-04-23 16:31 ` [dpdk-dev] [PATCH v2 2/6] service: identify service running on another core correctly Phil Yang
2020-04-23 16:31 ` [dpdk-dev] [PATCH v2 3/6] service: remove rte prefix from static functions Phil Yang
2020-04-23 16:31 ` [dpdk-dev] [PATCH v2 4/6] service: remove redundant code Phil Yang
2020-04-23 16:31 ` [dpdk-dev] [PATCH v2 5/6] service: optimize with c11 atomics Phil Yang
2020-04-23 16:31 ` [dpdk-dev] [PATCH v2 6/6] service: relax barriers with C11 atomics Phil Yang
2020-05-02 0:02 ` [dpdk-dev] [PATCH v3 0/6] use c11 atomics for service core lib Honnappa Nagarahalli
2020-05-02 0:02 ` [dpdk-dev] [PATCH v3 1/6] service: fix race condition for MT unsafe service Honnappa Nagarahalli
2020-05-05 14:48 ` Van Haaren, Harry
2020-05-02 0:02 ` [dpdk-dev] [PATCH v3 2/6] service: identify service running on another core correctly Honnappa Nagarahalli
2020-05-05 14:48 ` Van Haaren, Harry
2020-05-02 0:02 ` [dpdk-dev] [PATCH v3 3/6] service: remove rte prefix from static functions Honnappa Nagarahalli
2020-05-05 14:48 ` Van Haaren, Harry
2020-05-02 0:02 ` [dpdk-dev] [PATCH v3 4/6] service: remove redundant code Honnappa Nagarahalli
2020-05-05 14:48 ` Van Haaren, Harry
2020-05-02 0:02 ` [dpdk-dev] [PATCH v3 5/6] service: optimize with c11 atomics Honnappa Nagarahalli
2020-05-05 14:48 ` Van Haaren, Harry
2020-05-02 0:02 ` [dpdk-dev] [PATCH v3 6/6] service: relax barriers with C11 atomics Honnappa Nagarahalli
2020-05-05 14:48 ` Van Haaren, Harry
2020-05-05 21:17 ` [dpdk-dev] [PATCH v4 0/6] use c11 atomics for service core lib Honnappa Nagarahalli
2020-05-05 21:17 ` [dpdk-dev] [PATCH v4 1/6] service: fix race condition for MT unsafe service Honnappa Nagarahalli
2020-05-05 21:17 ` [dpdk-dev] [PATCH v4 2/6] service: fix identification of service running on other lcore Honnappa Nagarahalli
2020-05-05 21:17 ` [dpdk-dev] [PATCH v4 3/6] service: remove rte prefix from static functions Honnappa Nagarahalli
2020-05-05 21:17 ` [dpdk-dev] [PATCH v4 4/6] service: remove redundant code Honnappa Nagarahalli
2020-05-05 21:17 ` [dpdk-dev] [PATCH v4 5/6] service: optimize with c11 atomics Honnappa Nagarahalli
2020-05-06 10:20 ` Phil Yang
2020-05-05 21:17 ` [dpdk-dev] [PATCH v4 6/6] service: relax barriers with C11 atomics Honnappa Nagarahalli
2020-05-06 10:24 ` [dpdk-dev] [PATCH v5 0/6] use c11 atomics for service core lib Phil Yang
2020-05-06 10:24 ` [dpdk-dev] [PATCH v5 1/6] service: fix race condition for MT unsafe service Phil Yang
2020-05-06 10:24 ` [dpdk-dev] [PATCH v5 2/6] service: fix identification of service running on other lcore Phil Yang
2020-05-06 10:24 ` [dpdk-dev] [PATCH v5 3/6] service: remove rte prefix from static functions Phil Yang
2020-05-06 10:24 ` [dpdk-dev] [PATCH v5 4/6] service: remove redundant code Phil Yang
2020-05-06 10:24 ` [dpdk-dev] [PATCH v5 5/6] service: optimize with c11 atomics Phil Yang
2020-05-06 10:24 ` [dpdk-dev] [PATCH v5 6/6] service: relax barriers with C11 atomics Phil Yang
2020-05-06 15:27 ` [dpdk-dev] [PATCH v6 0/6] use c11 atomics for service core lib Phil Yang
2020-05-06 15:27 ` [dpdk-dev] [PATCH v6 1/6] service: fix race condition for MT unsafe service Phil Yang
2020-05-06 15:28 ` [dpdk-dev] [PATCH v6 2/6] service: fix identification of service running on other lcore Phil Yang
2020-05-06 15:28 ` [dpdk-dev] [PATCH v6 3/6] service: remove rte prefix from static functions Phil Yang
2020-05-06 15:28 ` [dpdk-dev] [PATCH v6 4/6] service: remove redundant code Phil Yang
2020-05-06 15:28 ` [dpdk-dev] [PATCH v6 5/6] service: optimize with c11 atomics Phil Yang
2020-05-06 15:28 ` [dpdk-dev] [PATCH v6 6/6] service: relax barriers with C11 atomics Phil Yang
2020-05-11 11:21 ` [dpdk-dev] [PATCH v6 0/6] use c11 atomics for service core lib David Marchand
2020-03-17 1:17 ` [dpdk-dev] [PATCH v3 08/12] service: remove redundant code Phil Yang
2020-04-03 11:58 ` Van Haaren, Harry
2020-04-05 18:35 ` Honnappa Nagarahalli
2020-04-08 10:15 ` Phil Yang
2020-03-17 1:17 ` [dpdk-dev] [PATCH v3 09/12] service: avoid race condition for MT unsafe service Phil Yang
2020-04-03 11:58 ` Van Haaren, Harry
2020-04-04 18:03 ` Honnappa Nagarahalli
2020-04-08 18:05 ` Van Haaren, Harry
2020-04-09 1:31 ` Honnappa Nagarahalli
2020-04-09 16:46 ` Van Haaren, Harry
2020-04-18 6:21 ` Honnappa Nagarahalli
2020-04-21 17:43 ` Van Haaren, Harry
2020-03-17 1:17 ` [dpdk-dev] [PATCH v3 10/12] service: identify service running on another core correctly Phil Yang
2020-04-03 11:58 ` Van Haaren, Harry
2020-04-05 2:43 ` Honnappa Nagarahalli
2020-03-17 1:17 ` [dpdk-dev] [PATCH v3 11/12] service: optimize with c11 one-way barrier Phil Yang
2020-04-03 11:58 ` Van Haaren, Harry
2020-04-06 4:22 ` Honnappa Nagarahalli
2020-04-08 10:15 ` Phil Yang
2020-03-17 1:17 ` [dpdk-dev] [PATCH v3 12/12] service: relax barriers with C11 atomic operations Phil Yang
2020-04-03 11:58 ` Van Haaren, Harry
2020-04-06 17:06 ` Honnappa Nagarahalli
2020-04-08 19:42 ` Van Haaren, Harry
2020-03-18 14:01 ` [dpdk-dev] [PATCH v3 00/12] generic rte atomic APIs deprecate proposal Van Haaren, Harry
2020-03-18 15:13 ` Thomas Monjalon
2020-03-20 5:01 ` Honnappa Nagarahalli
2020-03-20 12:20 ` Jerin Jacob
2020-03-20 4:51 ` Honnappa Nagarahalli
2020-03-20 18:32 ` Honnappa Nagarahalli
2020-03-27 14:47 ` Van Haaren, Harry
2020-04-03 7:23 ` Mattias Rönnblom
2020-05-12 8:03 ` [dpdk-dev] [PATCH v4 0/4] " Phil Yang
2020-05-12 8:03 ` [dpdk-dev] [PATCH v4 1/4] doc: add generic atomic deprecation section Phil Yang
2020-05-12 8:03 ` [dpdk-dev] [PATCH v4 2/4] maintainers: claim maintainers of c11 atomics code Phil Yang
2020-05-24 23:11 ` Thomas Monjalon
2020-05-25 3:28 ` Phil Yang
2020-05-12 8:03 ` [dpdk-dev] [PATCH v4 3/4] devtools: prevent use of rte atomic APIs in future patches Phil Yang
2020-05-12 8:03 ` [dpdk-dev] [PATCH v4 4/4] eal/atomic: add wrapper for c11 atomics Phil Yang
2020-05-12 11:18 ` Morten Brørup
2020-05-13 9:40 ` Phil Yang
2020-05-13 15:32 ` Honnappa Nagarahalli
2020-05-12 18:20 ` Stephen Hemminger
2020-05-12 19:23 ` Honnappa Nagarahalli
2020-05-13 8:57 ` Morten Brørup
2020-05-13 15:30 ` Honnappa Nagarahalli
2020-05-13 19:04 ` Mattias Rönnblom
2020-05-13 19:40 ` Honnappa Nagarahalli
2020-05-13 20:17 ` Mattias Rönnblom
2020-05-14 8:34 ` Morten Brørup
2020-05-14 20:16 ` Mattias Rönnblom
2020-05-14 21:00 ` Honnappa Nagarahalli
2020-05-13 11:53 ` Ananyev, Konstantin
2020-05-13 15:06 ` Honnappa Nagarahalli
2020-05-13 19:25 ` Mattias Rönnblom
2020-05-12 8:18 ` [dpdk-dev] [PATCH v4 0/4] generic rte atomic APIs deprecate proposal Phil Yang
2020-05-26 9:01 ` [dpdk-dev] [PATCH v5 " Phil Yang
2020-05-26 9:01 ` [dpdk-dev] [PATCH v5 1/4] doc: add generic atomic deprecation section Phil Yang
2020-05-26 9:01 ` [dpdk-dev] [PATCH v5 2/4] maintainers: claim maintainers of c11 atomics code Phil Yang
2020-05-26 9:01 ` [dpdk-dev] [PATCH v5 3/4] devtools: prevent use of rte atomic APIs in future patches Phil Yang
2020-06-29 4:38 ` Honnappa Nagarahalli
2020-06-29 5:38 ` Phil Yang
2020-05-26 9:01 ` [dpdk-dev] [PATCH v5 4/4] eal/atomic: add wrapper for c11 atomic thread fence Phil Yang
2020-06-29 4:40 ` Honnappa Nagarahalli
2020-06-29 10:09 ` Ananyev, Konstantin
2020-06-29 14:37 ` Honnappa Nagarahalli
2020-06-29 10:13 ` Ananyev, Konstantin
2020-07-07 9:50 ` [dpdk-dev] [PATCH v6 0/4] generic rte atomic APIs deprecate proposal Phil Yang
2020-07-07 9:50 ` [dpdk-dev] [PATCH v6 1/4] doc: add generic atomic deprecation section Phil Yang
2020-07-10 16:55 ` Thomas Monjalon
2020-07-10 23:47 ` Honnappa Nagarahalli
2020-07-07 9:50 ` [dpdk-dev] [PATCH v6 2/4] maintainers: claim maintainers of C11 atomics Phil Yang
2020-07-10 17:45 ` Thomas Monjalon
2020-07-10 23:41 ` Honnappa Nagarahalli
2020-07-13 6:26 ` Phil Yang
2020-07-07 9:50 ` [dpdk-dev] [PATCH v6 3/4] devtools: prevent use of rte atomic APIs in future patches Phil Yang
2020-07-07 9:50 ` [dpdk-dev] [PATCH v6 4/4] eal/atomic: add wrapper for C11 atomic thread fence Phil Yang
2020-07-13 6:23 ` [dpdk-dev] [PATCH v7 0/3] generic rte atomic APIs deprecate proposal Phil Yang
2020-07-13 6:23 ` [dpdk-dev] [PATCH v7 1/3] doc: add generic atomic deprecation section Phil Yang
2020-07-14 18:36 ` Honnappa Nagarahalli
2020-07-15 2:58 ` Phil Yang
2020-07-13 6:23 ` [dpdk-dev] [PATCH v7 2/3] devtools: prevent use of rte atomic APIs in future patches Phil Yang
2020-07-13 6:23 ` [dpdk-dev] [PATCH v7 3/3] eal/atomic: add wrapper for C11 atomic thread fence Phil Yang
2020-07-16 4:53 ` [dpdk-dev] [PATCH v8 0/3] generic rte atomic APIs deprecate proposal Phil Yang
2020-07-16 4:53 ` Phil Yang [this message]
2020-07-16 10:35 ` [dpdk-dev] [PATCH v8 1/3] doc: add optimizations using C11 atomic built-ins David Marchand
2020-07-16 18:22 ` Honnappa Nagarahalli
2020-07-17 4:44 ` Phil Yang
2020-07-16 4:53 ` [dpdk-dev] [PATCH v8 2/3] devtools: prevent use of rte atomic APIs in future patches Phil Yang
2020-07-16 10:48 ` David Marchand
2020-07-16 11:31 ` Thomas Monjalon
2020-07-16 16:37 ` Phil Yang
2020-07-16 16:42 ` Thomas Monjalon
2020-07-16 16:59 ` Honnappa Nagarahalli
2020-07-16 21:45 ` Stephen Hemminger
2020-07-17 22:48 ` Honnappa Nagarahalli
2020-07-18 2:18 ` Stephen Hemminger
2020-07-17 4:48 ` Phil Yang
2020-07-16 15:07 ` Phil Yang
2020-07-16 4:53 ` [dpdk-dev] [PATCH v8 3/3] eal/atomic: add wrapper for C11 atomic thread fence Phil Yang
2020-07-17 5:08 ` [dpdk-dev] [PATCH v9 0/3] generic rte atomic APIs deprecate proposal Phil Yang
2020-07-17 5:08 ` [dpdk-dev] [PATCH v9 1/3] doc: add optimizations using C11 atomic builtins Phil Yang
2020-07-17 5:08 ` [dpdk-dev] [PATCH v9 2/3] devtools: prevent use of rte atomic APIs in future patches Phil Yang
2020-07-17 8:35 ` Thomas Monjalon
2020-07-17 9:41 ` Phil Yang
2020-07-17 5:08 ` [dpdk-dev] [PATCH v9 3/3] eal/atomic: add wrapper for C11 atomic thread fence Phil Yang
2020-07-17 8:48 ` Thomas Monjalon
2020-07-17 8:53 ` Phil Yang
2020-07-17 10:14 ` [dpdk-dev] [PATCH v10 0/3] generic rte atomic APIs deprecate proposal Phil Yang
2020-07-17 10:14 ` [dpdk-dev] [PATCH v10 1/3] doc: add optimizations using C11 atomic builtins Phil Yang
2020-07-17 10:14 ` [dpdk-dev] [PATCH v10 2/3] eal/atomic: add wrapper for C11 atomic thread fence Phil Yang
2020-07-17 10:14 ` [dpdk-dev] [PATCH v10 3/3] devtools: prevent use of rte atomic APIs in future patches Phil Yang
2020-07-17 13:58 ` [dpdk-dev] [PATCH v10 0/3] generic rte atomic APIs deprecate proposal David Marchand
2020-07-20 7:06 ` Phil Yang
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