- dpdk
Collect DPDK interface statistics.
+ See docs/BUILD.dpdkstat.md for detailed build instructions.
- drbd
Collect individual drbd resource statistics.
* `endianflip' (12345678 -> 87654321)
* `intswap' (12345678 -> 56781234)
-Configuring with DPDK
----------------------
-
-Note: DPDK 16.04 is the minimum version and currently supported version of DPDK
-required for the dpdkstat plugin. This is to allow the plugin to take advantage
-of functions added to detect if the DPDK primary process is alive.
-
-Note: For Ubuntu, GCC 4.9 is the minimum version required to build collectd
-with DPDK. Ubuntu 14.04, for example, has GCC 4.8 by default and will require
-an upgrade:
- $ sudo add-apt-repository ppa:ubuntu-toolchain-r/test
- $ sudo apt-get update
- $ sudo apt-get install gcc-4.9
-Alternatively, if you know that the platform that you wish to run collectd
-on supports the SSSE3 instruction set, you can run make as follows:
- $ make -j CFLAGS+='-mssse3'
-
-Build DPDK for use with collectd:
- To compile DPDK for use with collectd dpdkstat start by:
- - Clone DPDK:
- $ git clone git://dpdk.org/dpdk
- - Checkout the system requirements at
- http://dpdk.org/doc/guides/linux_gsg/sys_reqs.html and make sure you have
- the required tools and hugepage setup as specified there.
- NOTE: It's recommended to use the 1GB hugepage setup for best performance,
- please follow the instruction for "Reserving Hugepages for DPDK Use"
- in the link above.
- However if you plan on configuring 2MB hugepages on the fly please ensure
- to add appropriate commands to reserve hugepages in a system startup script
- if collectd is booted at system startup time. These commands include:
- mkdir -p /mnt/huge
- mount -t hugetlbfs nodev /mnt/huge
- echo 64 > /sys/devices/system/node/node0/hugepages/hugepages-2048kB/nr_hugepages
- - To configure the DPDK build for the combined shared library modify
- config/common_base in your DPDK as follows
- #
- # Compile to share library
- #
- -CONFIG_RTE_BUILD_SHARED_LIB=n
- +CONFIG_RTE_BUILD_SHARED_LIB=y
- - Prepare the configuration for the appropriate target as specified at:
- http://dpdk.org/doc/guides/linux_gsg/build_dpdk.html.
- For example:
- $ make config T=x86_64-native-linuxapp-gcc
- - Build the target:
- $ make
- - Install DPDK to /usr
- $ sudo make install prefix=/usr
- NOTE 1: You must run make install as the configuration of collectd with
- DPDK expects DPDK to be installed somewhere.
- NOTE 2: If you don't specify a prefix then DPDK will be installed in /usr/local/
- NOTE 3: If you are not root then use sudo to make install DPDK to the appropriate
- location.
- - Check that the DPDK library has been installed in /usr/lib or /lib
- $ ls /usr/lib | grep dpdk
- - Bind the interfaces to use with dpdkstat to DPDK:
- DPDK devices can be setup with either the VFIO (for DPDK 1.7+) or UIO modules.
- Note: UIO requires inserting an out of tree driver igb_uio.ko that is available
- in DPDK.
- UIO Setup:
- - Insert uio.ko:
- $ sudo modprobe uio
- - Insert igb_uio.ko:
- $ sudo insmod $DPDK_BUILD/kmod/igb_uio.ko
- - Bind network device to igb_uio:
- $ sudo $DPDK_DIR/tools/dpdk_nic_bind.py --bind=igb_uio eth1
- VFIO Setup:
- - VFIO needs to be supported in the kernel and the BIOS. More information can be found
- @ http://dpdk.org/doc/guides/linux_gsg/build_dpdk.html.
- - Insert the `vfio-pci.ko' module: modprobe vfio-pci
- - Set the correct permissions for the vfio device:
- $ sudo /usr/bin/chmod a+x /dev/vfio
- $ sudo /usr/bin/chmod 0666 /dev/vfio/*
- - Bind the network device to vfio-pci:
- $ sudo $DPDK_DIR/tools/dpdk_nic_bind.py --bind=vfio-pci eth1
- NOTE: Please ensure to add appropriate commands to bind the network
- interfaces to DPDK in a system startup script if collectd is
- booted at system startup time.
- - Run ldconfig to update the shared library cache.
-
- Build static DPDK library for use with collectd:
- - To configure DPDK to build the combined static library libdpdk.a
- ensure that CONFIG_RTE_BUILD_SHARED_LIB is set to n in
- config/common_base in your DPDK as follows:
- #
- # Compile to share library
- #
- CONFIG_RTE_BUILD_SHARED_LIB=n
- - Prepare the configuration for the appropriate target as specified at:
- http://dpdk.org/doc/guides/linux_gsg/build_dpdk.html.
- For example:
- $ make config T=x86_64-native-linuxapp-gcc
- - Build the target using -fPIC:
- $ make EXTRA_CFLAGS=-fPIC -j
- - Install DPDK to /usr
- $ sudo make install prefix=/usr
-
-Configure collectd with DPDK:
-NOTE: The Address-Space Layout Randomization (ASLR) security feature in Linux should
- be disabled, in order for the same hugepage memory mappings to be present in all
- DPDK multi-process applications. Note that this has security implications.
- To disable ASLR:
- $ echo 0 > /proc/sys/kernel/randomize_va_space
- To fully enable ASLR:
- $ echo 2 > /proc/sys/kernel/randomize_va_space
- See http://dpdk.org/doc/guides/prog_guide/multi_proc_support.html
-
- - Generate the build script as specified below. (i.e. run `build.sh').
- - Configure collectd with the DPDK shared library:
- ./configure --with-libdpdk=/usr
- NOTE: To configure collectd with the DPDK static library:
- ./configure --with-libdpdk=/usr CFLAGS=" -lpthread -Wl,--whole-archive
- -Wl,-ldpdk -Wl,-lm -Wl,-lrt -Wl,-lpcap -Wl,-ldl -Wl,--no-whole-archive"
-
- Libraries:
- ...
- libdpdk . . . . . . . . yes
-
- Modules:
- ...
- dpdkstat . . . . . . .yes
-
-
- - Make sure that dpdk and dpdkstat are enabled in the configuration log:
-
- - Build collectd:
- $ make -j && make -j install.
- NOTE: As mentioned above, if you are building on Ubuntu 14.04 with GCC <= 4.8.X,
- you need to use:
- $ make -j CFLAGS+='-mssse3' && make -j install
-
-Usage of dpdkstat:
- - The same PCI device configuration should be passed to the primary process
- as the secondary process uses the same port indexes as the primary.
- NOTE: A blacklist/whitelist of NICs isn't supported yet.
-
Contact
-------
projects / collectd.git / blobdiff