کامپیوتر ODROID-XU4

توضیحات

با پشتیبانی از رابط USB3 وE – MMC5.0 بورد ODROID دارای سریع ترین سرعت انتقال اطلاعات خواهد بود. پردازندهCPU و پردازنده گرافیکی قدرتمند بر روی بورد از پس پردازش های سنگین و رندر تصاویر به راحتی بر می آید همچنین سخت افزار بالا این بورد باعث بوت شدن هرچه سریع تر سیستم عامل و افزایش سرعت مرور وب و تصاویر ۳D می شود

ODROID-XU4

is powered by ARM® big.LITTLE™ technology, the Heterogeneous Multi-Processing (HMP) solution.

ODROID-XU4 is a new generation of computing device with more powerful, more energy-efficient hardware and a smaller form factor.
Offering open source support, the board can run various flavors of Linux, including the latest Ubuntu 15.04 and Android 4.4 KitKat and 5.0 Lollipop.
By implementing the eMMC 5.0, USB 3.0 and Gigabit Ethernet interfaces, the ODROID-XU4 boasts amazing data transfer speeds, a feature that is increasingly required to support advanced processing power on ARM devices.
This allows users to truly experience an upgrade in computing, especially with faster booting, web browsing, networking, and 3D games.

The XU4 is fully software compatible with XU3!
However, the XU4 is more compact, more affordable and more expandable.

* Samsung Exynos5422 Cortex™-A15 2Ghz and Cortex™-A7 Octa core CPUs
* Mali-T628 MP6(OpenGL ES 3.0/2.0/1.1 and OpenCL 1.1 Full profile)
* ۲Gbyte LPDDR3 RAM PoP stacked
* eMMC5.0 HS400 Flash Storage
* ۲ x USB 3.0 Host, 1 x USB 2.0 Host
* Gigabit Ethernet port
* HDMI 1.4a for display
* Size : 82 x 58 x 22 mm approx.(including cooling fan)

CPU/RAM PERFORMANCEWe ran several benchmarks to measure the computing power on the XU4. The same tests were performed on the Raspberry Pi 2 Model B, ODROID-C1, ODROID-U3 and ODROID-XU4.
The values of the test results were scaled uniformly for comparison purposes. The computing power of the XU4 was measured to be ~3-4 times faster than the latest Raspberry Pi 2 thanks to the 2Ghz Cortex-A15 cores and much higher memory bandwidth. Using the XU4 as a computer provides a “desktop like” experience, unlike the sluggish performance of most single-board computers!
Particularly for developers, compiling code on the XU4 is about 3 to 4 times faster. The high-performance 2GB DDR3 RAM is an additional advantage allowing most programs to be compiled directly on the XU4.

Benchmarks (Index Score)	Raspberry Pi 2	ODROID-C1	ODROID-U3	ODROID-XU4
Dhrystone-2	۱۰۰۶٫۶	۱۲۶۲٫۸	۲۳۰۰٫۷	۳۹۹۴٫۱
Double-Precision Whetstone (x3)	۱۰۷۶٫۱	۱۳۱۸٫۸	۲۲۱۷٫۹	۳۰۷۴٫۷
Nbench 2.2.3 Integer (x40)	۸۴۰٫۰	۱۲۰۸٫۰	۱۶۴۸٫۰	۲۴۵۱٫۱
Nbench 2.2.3 FP (x100)	۸۰۹٫۰	۱۰۵۰٫۰	۱۸۶۰٫۰	۲۵۳۶٫۹
SysBench CPU (1/T * 50000)	۶۶۹٫۳	۹۰۲٫۲	۱۴۹۷٫۰	۲۸۹۱٫۸
Memory BandWidth (mbw 100: MiB/s)	۵۵۷٫۱	۱۰۶۹٫۶	۷۳۶٫۶	۳۲۴۳٫۸

SD/eMMC PERFORMANCE

The XU4 can boot from a MicroSD card or an eMMC module. An easy-access hardware switch is provided to select the boot interface (MicroSD/eMMC). The MicroSD interface supports the higher performance UHS-1 mode as well.
File access of a 512MB file (read/write) on three different storage options shows distinct performance differences.
The eMMC 5.0 storage is ~7x faster than the MicroSD Class-10 card in read tests. The MicroSD UHS-1 card is ~2x faster than the MicroSD Class-10 card in read tests. The MicroSD UHS-1 card provides a great low-cost option for many applications!

Write command
dd if=/dev/zero of=test oflag=direct bs=8M count=64Read command
dd if=test of=/dev/null iflag=direct bs=8MFollowing eMMC 5.0 test was done with 16GB model.
۸GB model is slower than 16GB.

	SD-class10	SD-UHS1	eMMC 5.0
Write speed (MB/s)	۸٫۵	۱۰٫۸	۳۹٫۳
Read speed (MB/s)	۱۸٫۹	۳۵٫۹	۱۴۰

USB 3.0 PERFORMANCE

The XU4 has two standard-sized USB 3.0 SuperSpeed host ports.
To measure the USB 3.0 performance, we connected an SSD via a USB-SATA bridge. We used the Toshiba SSD HDT312 128GB model for this test.USB 3.0 read access speed is ~5x faster than USB 2.0 on the XU4!

USB storage performance	Read SSD(MB/sec)	Write SSD(MB/sec)
USB2.0 HighSpeed	۲۷٫۶	۲۶٫۲
USB3.0 SuperSpeed	۱۴۸٫۰	۱۳۲

ETHERNET PERFORMANCE

The XU4 has an on-board Gigabit Ethernet controller. Our bi-directional streaming speed was measured at ~880Mbps.
Thanks to the advanced technology of the RTL8153 controller, the XU4’s Ethernet controller easily outperforms the connectivity solutions of prior generations.

Test command
Server mode : iperf -s
Client Mode : iperf -c [ip address] -P 10 -W 32k

Ethernet performance	XU3 On-board 100Mbps	XU3 External 1Gbps	XU4 On-board 1Gbps
iperf Server on SBC (Mbit/sec)	۱۱۴٫۰	۴۱۹	۸۶۹٫۰
iperf Client on SBC (Mbit/sec)	۱۱۴٫۰	۶۲۵	۸۸۵٫۰

NETWORK STORAGE PERFORMANCE

These days, network storage applications like NAS and cloud services are popular. We ran the famous OMV (Open Media Vault) OS on the XU4 to measure network storage performance.
An SSD was connected to the XU4 via a USB 3.0 to SATA bridge. The Gigabit Ethernet port was connected to a Windows 8 PC via a simple switching hub.

We sent a big 1.6GB file from the XU4 to the PC via a Samba connection. This resulted in a download speed of ~75-85MB/sec.
The upload speed was measured at ~70MB/sec. Even though this performance is great, we are working on optimizing it even further.

The XU4 is a great solution to make a DIY personal cloud storage server!


Download speed : 80.6 MB/s	Upload speed : 68.2 MB/s

Heterogeneous Multi-Processing (HMP) solution

The ODROID-XU4, equipped with four big cores (ARM® Cortex® -A15™ up to 2.0GHz) and four small cores (ARM® Cortex® -A7™ up to 1.4 GHz), provides improved processing capabilities while maintaining the most efficient power consumption available. With the big.LITTLE™ HMP solution, the Exynos-5422 can utilize a maximum of all eight cores to manage computationally intensive tasks.

* Performance comparison between Cluster switching solution and HMP solution.

OpenGL ES 3.0 and OpenCL 1.1 for Linux and Android platforms

The ARM® Mali™-T628 MP6 GPU offers key API support for OpenGL ES 1.1, OpenGL ES 2.0 and OpenGL ES 3.0, OpenCL 1.1 Full Profile and Google RenderScript. Mali-T628 is the GPU of choice for use in the next generation of market-leading devices, optimized to bring breathtaking graphical displays to consumer applications such as 3D graphics, visual computing, augmented reality, procedural texture generation and voice recognition. You can download the full featured OpenGL ES and OpenCL SDK from ARM Mali Developer website. It’s free!

This screen-shot shows OpenGL-ES applications and the Kodi media player with Ubuntu 15.04 Mate desktop on the HMP enabled Kernel 3.10 LTS.

Mainline Kernel boots (Experimental)

The latest Kernel 4.2.0 RC1 runs on the XU4. Look at this booting log. You can scroll the log.

Grab the Kernel source code from our Github if you want to try.
https://github.com/hardkernel/linux/commits/odroidxu4-v4.2-rc1

This experimental Kernel 4.2 support the SMP 4 x A15 cores, USB 3.0, Gigabit Ethernet and some other basic features.
But HDMI, GPU, VPU(MFC), and HMP are not working. So it is useful only for the headless applications probably.
The OMV(Open Media Vault) OS will run on the latest mainline Kernel.

INTRODUCTION VIDEOS

ODROID-XU4 Hardware Introduction

Ubuntu 15.04 (Vivid Vervet) with MATE desktop

Web Browsing and XMBC on Linux

Robot OS : OpenNI and OpenCV

Make 42inch Tablet

Android Portrait Mode

Video Surveillance System

Augmented Reality Using oCam and ODROID-XU4

SPECIFICATIONS

Processor	Samsung Exynos5422 ARM® Cortex™-A15 Quad 2.0GHz/Cortex™-A7 Quad 1.4GHz
Memory	۲Gbyte LPDDR3 RAM PoP (750Mhz, 12GB/s memory bandwidth, 2x32bit bus)
۳D Accelerator	Mali™-T628 MP6 OpenGL ES 3.0 / 2.0 / 1.1 and OpenCL 1.1 Full profile
Audio	HDMI Digital audio output. Optional SPDIF optical output (USB module)
USB3.0 Host	SuperSpeed USB standard A type connector x 2 port
USB2.0 Host	HighSpeed USB standard A type connector x 1 port
Display	HDMI 1.4a with a Type-A connector
Storage (Option)	eMMC module socket : eMMC 5.0 Flash Storage (up to 64GByte) MicroSD Card Slot (up to 64GByte)
Fast Ethernet LAN	۱۰/۱۰۰/۱۰۰۰Mbps Ethernet with RJ-45 Jack ( Auto-MDIX support)
WiFi (Option)	USB IEEE 802.11b/g/n 1T1R WLAN with Antenna (USB module)
HDD/SSD SATA interface (Optional)	SuperSpeed USB (USB 3.0) to Serial ATA3 adapter for 2.5″/3.5″ HDD and SSD storage
Power (included)	۵V 4A Power
System Software	Ubuntu 15.04 + OpenGL ES + OpenCL on Kernel LTS 3.10 Android 4.4.2 on Kernel LTS 3.10 Android 5.1 is available as a community driven OS development. Full source code is accessible via our Github.
Size	۸۲ x 58 x 22 mm approx. (weight: 60gram including cooling fan approx. 38gram without cooler)

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