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Changpeng Liu 0e6463d9b3 ioat: add ioat kernel driver performance test harness For the purpose to make performance comparison between the ioat kernel driver and user space driver, we added the kernel driver test harness here, all the workload executed in the kernel space and controlled via sysfs. Change-Id: I2c8d826283405a5e1c9ba6a033503bcb98541370 Signed-off-by: Changpeng Liu <changpeng.liu@intel.com>		2016-01-15 10:53:19 +08:00
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include/spdk	pci: rename pci_device_has_non_null_driver to non_uio	2016-01-12 08:58:02 -07:00
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mk	nvme/utest: add SPDK_CU_ASSERT_FATAL wrapper	2016-01-08 09:31:10 -07:00
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autobuild.sh	autobuild: add sleep to fix dependency test	2015-11-03 15:19:36 -07:00
autopackage.sh	CONFIG: allow overriding options in make command	2015-10-22 12:24:57 -07:00
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README.md	README: update to DPDK 2.2.0	2016-01-05 13:18:21 -07:00
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README.md

Storage Performance Development Kit

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.

Documentation

Doxygen API documentation

Porting Guide

Prerequisites

To build SPDK, some dependencies must be installed.

Fedora/CentOS:

gcc
libpciaccess-devel
CUnit-devel

Ubuntu/Debian:

gcc
libpciaccess-dev
make
libcunit1-dev

FreeBSD:

gcc
libpciaccess
gmake
cunit

Additionally, DPDK is required.

1) cd /path/to/spdk
2) wget http://dpdk.org/browse/dpdk/snapshot/dpdk-2.2.0.tar.gz
3) tar xfz dpdk-2.2.0.tar.gz
4) cd dpdk-2.2.0

Linux:

5) make install T=x86_64-native-linuxapp-gcc DESTDIR=.

FreeBSD:

5) gmake install T=x86_64-native-bsdapp-clang DESTDIR=.

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-2.2.0/x86_64-native-linuxapp-gcc

FreeBSD:

gmake DPDK_DIR=./dpdk-2.2.0/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 scripts to automate this process on both Linux and FreeBSD.

1) scripts/configure_hugepages.sh
2) scripts/unbind.sh