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Ben Walker e464823a62 event: Don't check timers on every iteration
Instead, check them every 5 iterations by default.

Change-Id: I9c42922868f8e965a0c801109e59e06aff5adf62
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
2017-01-25 16:31:31 -07:00
app nvmf_tgt: assign different core for subsystems under RPC mode 2017-01-25 15:56:24 -07:00
build/lib build: consolidate library outputs in build/lib 2016-11-17 13:15:09 -07:00
doc doc: point Documentation link at index page 2017-01-18 16:07:31 -07:00
etc/spdk bdev/nvme: add timer-based admin queue poller 2017-01-19 10:54:33 -07:00
examples ioat/perf: exit early if no channels found 2017-01-25 09:26:55 -07:00
include test/event: rename event to event_perf 2017-01-24 16:42:12 -07:00
lib event: Don't check timers on every iteration 2017-01-25 16:31:31 -07:00
mk build: enable -fno-common 2017-01-20 15:10:44 -07:00
scripts nvmf_tgt: assign different core for subsystems under RPC mode 2017-01-25 15:56:24 -07:00
test autotest: remove duplicated unit test invocations 2017-01-25 15:19:23 -07:00
.astylerc build: check formatting with astyle 2015-09-23 09:05:51 -07:00
.gitignore gitignore: ignore .kdev4 (KDevelop) files 2016-07-12 09:08:01 -07:00
.travis.yml unittest.sh: move 'make' command into .travis.yml 2017-01-25 15:19:23 -07:00
autobuild.sh autobuild: log current git version and date 2016-12-16 10:27:28 -07:00
autopackage.sh autopackage: enable -Werror in release build 2016-11-17 10:29:11 -07:00
autorun.sh eofnl: check for extra trailing newlines 2016-10-11 13:30:33 -07:00
autotest.sh autotest: remove duplicated unit test invocations 2017-01-25 15:19:23 -07:00
CHANGELOG.md doc: move porting guide into doc/ and add to index 2017-01-17 16:25:04 -07:00
CONFIG config: add option to turn on UBSan 2016-12-06 11:17:33 -07:00
LICENSE Remove year from copyright headers. 2016-01-28 08:54:18 -07:00
Makefile build: generate config.h and implicitly include it 2016-06-08 10:26:50 -07:00
README.md readme: add a section about CONFIG 2017-01-24 15:43:20 -07:00
unittest.sh autotest: remove duplicated unit test invocations 2017-01-25 15:19:23 -07:00

Storage Performance Development Kit

Build Status

SPDK Mailing List

SPDK on 01.org

The Storage Performance Development Kit (SPDK) provides a set of tools and libraries for writing high performance, scalable, user-mode storage applications. It achieves high performance by moving all of the necessary drivers into userspace and operating in a polled mode instead of relying on interrupts, which avoids kernel context switches and eliminates interrupt handling overhead.

The development kit currently includes:

Documentation

Doxygen API documentation is available, as well as a Porting Guide for porting SPDK to different frameworks and operating systems.

Many examples are available in the examples directory.

Changelog

Prerequisites

To build SPDK, some dependencies must be installed.

Fedora/CentOS:

sudo dnf install -y gcc gcc-c++ CUnit-devel libaio-devel openssl-devel
# Additional dependencies for NVMe over Fabrics:
sudo dnf install -y libibverbs-devel librdmacm-devel

Ubuntu/Debian:

sudo apt-get install -y gcc g++ make libcunit1-dev libaio-dev libssl-dev
# Additional dependencies for NVMe over Fabrics:
sudo apt-get install -y libibverbs-dev librdmacm-dev

FreeBSD:

  • gcc
  • gmake
  • cunit
  • openssl

Additionally, DPDK is required.

1) cd /path/to/spdk
2) wget http://fast.dpdk.org/rel/dpdk-16.11.tar.xz
3) tar xf dpdk-16.11.tar.xz

Linux:

4) (cd dpdk-16.11 && make install T=x86_64-native-linuxapp-gcc DESTDIR=.)

FreeBSD:

4) (cd dpdk-16.11 && gmake install T=x86_64-native-bsdapp-clang DESTDIR=.)

Build Configuration

Optional components and other build-time configuration are controlled by the CONFIG file in the root SPDK directory. CONFIG is a Makefile fragment that may be edited before building to control which options are enabled.

Boolean (on/off) options are configured with a 'y' (yes) or 'n' (no). For example, this line of CONFIG controls whether the optional RDMA (libibverbs) support is enabled:

CONFIG_RDMA?=n

To enable RDMA, this line of CONFIG may be modified to contain 'y' instead of 'n'.

Alternatively, CONFIG options may also be overrriden on the make command line:

make CONFIG_RDMA=y

The options specified on the make command line take precedence over the default values in CONFIG.

Building

Once the prerequisites are installed, run 'make' within the SPDK directory to build the SPDK libraries and examples.

make DPDK_DIR=/path/to/dpdk

If you followed the instructions above for building DPDK:

Linux:

make DPDK_DIR=./dpdk-16.11/x86_64-native-linuxapp-gcc

FreeBSD:

gmake DPDK_DIR=./dpdk-16.11/x86_64-native-bsdapp-clang

Hugepages and Device Binding

Before running an SPDK application, some hugepages must be allocated and any NVMe and I/OAT devices must be unbound from the native kernel drivers. SPDK includes a script to automate this process on both Linux and FreeBSD. This script should be run as root.

sudo scripts/setup.sh

Examples

Example code is located in the examples directory. The examples are compiled automatically as part of the build process. Simply call any of the examples with no arguments to see the help output. You'll likely need to run the examples as a privileged user (root) unless you've done additional configuration to grant your user permission to allocate huge pages and map devices through vfio.