-.. BSD LICENSE
- Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
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-
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-
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- distribution.
- * Neither the name of Intel Corporation nor the names of its
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+.. SPDX-License-Identifier: BSD-3-Clause
+ Copyright(c) 2010-2014 Intel Corporation.
.. _Mempool_Library:
statistics about get from/put in the pool are stored in the mempool structure.
Statistics are per-lcore to avoid concurrent access to statistics counters.
-Memory Alignment Constraints
-----------------------------
+Memory Alignment Constraints on x86 architecture
+------------------------------------------------
-Depending on hardware memory configuration, performance can be greatly improved by adding a specific padding between objects.
+Depending on hardware memory configuration on X86 architecture, performance can be greatly improved by adding a specific padding between objects.
The objective is to ensure that the beginning of each object starts on a different channel and rank in memory so that all channels are equally loaded.
This is particularly true for packet buffers when doing L3 forwarding or flow classification.
(``RTE_MBUF_DEFAULT_MEMPOOL_OPS``) that allows the application to make use of
an alternative mempool handler.
+ .. note::
+
+ When running a DPDK application with shared libraries, mempool handler
+ shared objects specified with the '-d' EAL command-line parameter are
+ dynamically loaded. When running a multi-process application with shared
+ libraries, the -d arguments for mempool handlers *must be specified in the
+ same order for all processes* to ensure correct operation.
+
Use Cases
---------