mempool: fix slow allocation of large mempools

[dpdk.git] / doc / build-sdk-meson.txt

diff --git a/doc/build-sdk-meson.txt b/doc/build-sdk-meson.txt
index a4dd091..fc7fe37 100644 (file)
--- a/doc/build-sdk-meson.txt
+++ b/doc/build-sdk-meson.txt
@@ -1,11 +1,6 @@
 INSTALLING DPDK USING THE MESON BUILD SYSTEM
 ---------------------------------------------
 
-NOTE: Compiling and installing DPDK using ``meson`` and ``ninja``, rather
-than using ``make`` (GNU make) is EXPERIMENTAL. Official builds of DPDK
-should always be done using ``make``, as described in the ``Getting Started
-Guide`` documentation, and at "http://dpdk.org/doc/quick-start".
-
 Summary
 --------
 For many platforms, compiling and installing DPDK should work using the
@@ -37,8 +32,8 @@ The ``meson`` tool is used to configure a DPDK build. On most Linux
 distributions this can be got using the local package management system,
 e.g. ``dnf install meson`` or ``apt-get install meson``. If meson is not
 available as a suitable package, it can also be installed using the Python
-3 ``pip`` tool, e.g. ``pip3 install meson``. Version 0.42 of meson is
-recommended - if the version packaged is too old, the latest version is
+3 ``pip`` tool, e.g. ``pip3 install meson``. Version 0.47.1 of meson is
+required - if the version packaged is too old, the latest version is
 generally available from "pip".
 
 The other dependency for building is the ``ninja`` tool, which acts similar
@@ -87,6 +82,8 @@ Project-specific options are passed used -Doption=value::
 
        meson -Denable_docs=true fullbuild  # build and install docs
 
+       meson -Dmachine=default  # use builder-independent baseline -march
+
 Examples of setting the same options using meson configure::
 
        meson configure -Dwerror=true
@@ -103,6 +100,9 @@ should be used to change the build settings within the directory, and when
 ``ninja`` is called to do the build itself, it will trigger the necessary
 re-scan from meson.
 
+NOTE: machine=default uses a config that works on all supported architectures
+regardless of the capabilities of the machine where the build is happening.
+
 As well as those settings taken from ``meson configure``, other options
 such as the compiler to use can be passed via environment variables. For
 example::
@@ -162,22 +162,11 @@ command::
 
 For example if the target machine is arm64 we can use the following
 command::
-       meson arm-build --cross-file config/arm/arm64_armv8_linuxapp_gcc
-
-where config/arm/arm64_armv8_linuxapp_gcc contains the following
-parameters::
-
-       [binaries]
-       c = 'aarch64-linux-gnu-gcc'
-       cpp = 'aarch64-linux-gnu-cpp'
-       ar = 'aarch64-linux-gnu-ar'
-
-       [host_machine]
-       system = 'linux'
-       cpu_family = 'aarch64'
-       cpu = 'armv8-a'
-       endian = 'little'
+       meson arm-build --cross-file config/arm/arm64_armv8_linux_gcc
 
+where config/arm/arm64_armv8_linux_gcc contains settings for the compilers
+and other build tools to be used, as well as characteristics of the target
+machine.
 
 Using the DPDK within an Application
 -------------------------------------
@@ -203,9 +192,3 @@ From examples/helloworld/Makefile::
 
        build:
                @mkdir -p $@
-
-NOTE: for --static builds, DPDK needs to be built with Meson >= 0.46 in order to
-fully generate the list of private dependencies. If DPDK is built with an older
-version of Meson, it might be necessary to manually specify dependencies of DPDK
-PMDs/libraries, for example -lmlx5 -lmnl for librte-pmd-mlx5, or the static link
-step might fail.