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Daniel Verkamp 189814de83 autotest: tweak nvme/perf command to test splits 
Previously, the I/O splitting code and child I/O completion were not
being tested (aside from in the unit tests).

Tweak the I/O size so that it will get split into two child I/Os on
devices with 128 KB striping.

This causes nvme_cb_complete_child() to be exercised, improving code
coverage.

Change-Id: Ia0299f7f809f8edb93452b5ad45939977a9f67f1
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2015-11-04 14:35:25 -07:00
doc doc: remove reference to nonexistent images dir 2015-09-24 11:24:16 -07:00
examples build: allow make to work from any directory 2015-11-04 10:19:08 -07:00
include/spdk util: add file size and block size functions 2015-10-26 11:16:56 -07:00
lib build: allow make to work from any directory 2015-11-04 10:19:08 -07:00
mk build: disable missing field initializer warning 2015-11-02 19:47:34 -07:00
scripts build: add CONFIG_COVERAGE code coverage option 2015-11-02 14:40:49 -07:00
test autotest: tweak nvme/perf command to test splits 2015-11-04 14:35:25 -07:00
.astylerc build: check formatting with astyle 2015-09-23 09:05:51 -07:00
.gitignore build: add CONFIG_COVERAGE code coverage option 2015-11-02 14:40:49 -07:00
.travis.yml build: add Travis CI integration 2015-11-04 11:05:59 -07:00
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
autotest.sh autotest: use hostname as lcov test name 2015-11-03 15:54:11 -07:00
CONFIG build: add CONFIG_COVERAGE code coverage option 2015-11-02 14:40:49 -07:00
LICENSE SPDK: Initial check-in 2015-09-21 08:52:41 -07:00
Makefile build: allow make to work from any directory 2015-11-04 10:19:08 -07:00
PORTING.md Add porting guide. 2015-09-28 09:07:19 -07:00
README.md Add porting guide. 2015-09-28 09:07:19 -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.

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-2.1.0.tar.gz
3) tar xfz dpdk-2.1.0.tar.gz
4) cd dpdk-2.1.0

Linux:

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

FreeBSD:

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

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=`pwd`/dpdk-2.1.0/x86_64-native-linuxapp-gcc

FreeBSD:

gmake DPDK_DIR=`pwd`/dpdk-2.1.0/x86_64-native-bsdapp-clang

Hugepages and Device Binding

Before running an SPDK application, some hugepages must be allocated and any NVMe devices must be unbound from the native NVMe kernel driver. SPDK includes scripts to automate this process on both Linux and FreeBSD.

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