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Note Testing has been performed using Fedora 18. The setup commands and installed packages needed on other systems may be different. For details on other Linux distributions and the versions tested, please consult the DPDK Release Notes. coreutils: cmp, sed, grep, arch, etc.
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gcc: versions 4.5.x or later is recommended for i686/x8664. Versions 4.8.x or later is recommended for ppc64 and x86x32 ABI. On some distributions, some specific compiler flags and linker flags are enabled by default and affect performance ( -fstack-protector, for example).
Please refer to the documentation of your distribution and to gcc -dumpspecs. libc headers, often packaged as gcc-multilib ( glibc-devel.i686 / libc6-dev-i386; glibc-devel.x8664 / libc6-dev for 64-bit compilation on Intel architecture; glibc-devel.ppc64 for 64 bit IBM Power architecture;). Linux kernel headers or sources required to build kernel modules. (kernel - devel.x8664; kernel - devel.ppc64). Additional packages required for 32-bit compilation on 64-bit systems are:.
glibc.i686, libgcc.i686, libstdc.i686 and glibc-devel.i686 for Intel i686/x8664;. glibc.ppc64, libgcc.ppc64, libstdc.ppc64 and glibc-devel.ppc64 for IBM ppc64. Note Python, version 2.6 or 2.7, to use various helper scripts included in the DPDK package. Optional Tools:. Intel® C Compiler (icc). For installation, additional libraries may be required.
See the icc Installation Guide found in the Documentation directory under the compiler installation. IBM® Advance ToolChain for Powerlinux.
This is a set of open source development tools and runtime libraries which allows users to take leading edge advantage of IBM’s latest POWER hardware features on Linux. To install it, see the IBM official installation document. libpcap headers and libraries (libpcap-devel) to compile and use the libpcap-based poll-mode driver.
This driver is disabled by default and can be enabled by setting CONFIGRTELIBRTEPMDPCAP=y in the build time config file. libarchive headers and library are needed for some unit tests using tar to get their resources. Uname -r. glibc = 2.7 (for features related to cpuset) The version can be checked using the ldd -version command. Kernel configuration In the Fedora OS and other common distributions, such as Ubuntu, or Red Hat Enterprise Linux, the vendor supplied kernel configurations can be used to run most DPDK applications. For other kernel builds, options which should be enabled for DPDK include:.
UIO support. HUGETLBFS. PROCPAGEMONITOR support. HPET and HPETMMAP configuration options should also be enabled if HPET support is required.
See the section on for more details. Use of Hugepages in the Linux Environment Hugepage support is required for the large memory pool allocation used for packet buffers (the HUGETLBFS option must be enabled in the running kernel as indicated the previous section). By using hugepage allocations, performance is increased since fewer pages are needed, and therefore less Translation Lookaside Buffers (TLBs, high speed translation caches), which reduce the time it takes to translate a virtual page address to a physical page address. Without hugepages, high TLB miss rates would occur with the standard 4k page size, slowing performance. Note For 64-bit applications, it is recommended to use 1 GB hugepages if the platform supports them.
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In the case of a dual-socket NUMA system, the number of hugepages reserved at boot time is generally divided equally between the two sockets (on the assumption that sufficient memory is present on both sockets). See the Documentation/kernel-parameters.txt file in your Linux source tree for further details of these and other kernel options. Alternative: For 2 MB pages, there is also the option of allocating hugepages after the system has booted. This is done by echoing the number of hugepages required to a nrhugepages file in the /sys/devices/ directory.
For a single-node system, the command to use is as follows (assuming that 1024 pages are required).