Difference between revisions of "Jetson/Jetson TK1 System Info"

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m (Shervin.emami moved page Tegra/JetsonTK1 System Info to Jetson/Jetson TK1 System Info: moving Jetson TK1 related pages to the /Jetson folder)
 
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Latest revision as of 17:59, 15 June 2014

Introduction

This page shows potential Jetson TK1 buyers what to expect, and existing Jetson TK1 owners how to get familiar with their device, particularly for those new to Linux. To run these commands yourself, either click on the top-left icon in Ubuntu Unity and type "terminal" to open a command shell, or open an SSH command shell into your device from your desktop. Then enter the command in the blue box, and you should see the output shown in the black box.


Show which version of Ubuntu this is

cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=14.04
DISTRIB_CODENAME=trusty
DISTRIB_DESCRIPTION="Ubuntu 14.04 LTS"

This shows you are basically running Ubuntu 14.04 ("LTS" long-term-support version).


Show which kernel is running

uname -a
Linux tegra-ubuntu 3.10.24-g6a2d13a #1 SMP PREEMPT Fri Apr 18 15:56:45 PDT 2014 armv7l armv7l armv7l GNU/Linux

This shows you are running the "tegra-ubuntu" Linux 3.10.24 kernel that includes support for PREEMPT and armv7l.


Show the total & available RAM memory

free -m

You want to look at the "-/+ buffers/cache" line, not the "Mem" line. For example, if "free -m" shows this:

                 total       used       free     shared    buffers     cached
    Mem:          1746        462       1283          0         23        147
    -/+ buffers/cache:        291       1455
    Swap:            0          0          0

Then you have a total of 1746 MB (~1.7 GB) RAM, and using around 291 MB thus have around 1455 MB free and are not using any swap space.


Show some details about the CPU

lscpu
Architecture:          armv7l
Byte Order:            Little Endian
CPU(s):                4
On-line CPU(s) list:   0
Off-line CPU(s) list:  1-3
Thread(s) per core:    1
Core(s) per socket:    1
Socket(s):             1

This shows you have quad-core CPU ARMv7 CPU (and currently just using 1 core of the 4 available cores).


Show the disk partitions

sudo parted -l

If it asks you to fix the space available in the GPT table, just hit I to ignore.

Error: /dev/mmcblk0rpmb: unrecognised disk label
 
Warning: Not all of the space available to /dev/mmcblk0 appears to be used, you can fix the GPT to use all of the space (an extra 4063 blocks) or continue with the current setting?
Fix/Ignore? i
Model: MMC SEM16G (sd/mmc)
Disk /dev/mmcblk0: 15.8GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt

Number Start   End     Size    File system  Name  Flags
1      25.2MB  8615MB  8590MB  ext3         APP   hidden, msftdata
2      8615MB  8619MB  4194kB               DTB   hidden, msftdata
3      8619MB  8686MB  67.1MB               EFI   hidden, msftdata
4      8686MB  8691MB  4194kB               USP   hidden, msftdata
5      8691MB  8695MB  4194kB               TP1   hidden, msftdata
6      8695MB  8699MB  4194kB               TP2   hidden, msftdata
7      8699MB  8703MB  4194kB               TP3   hidden, msftdata
8      8703MB  15.8GB  7053MB               UDA   hidden, msftdata

This shows your storage is MMC (an eMMC solid-state chip) of 15.8GB total size, with 8 disk partitions where the first partition is an 8.59 GB partition that is formatted as ext3 (Linux). The other partitions are small partitions used for flashing, except the last partition that is 7GB in size.


Show the disk space usage

df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/root       7.8G  2.1G  5.4G  28% /
devtmpfs        850M  8.0K  850M   1% /dev
none            4.0K     0  4.0K   0% /sys/fs/cgroup
none            175M  624K  175M   1% /run
none            5.0M     0  5.0M   0% /run/lock
none            874M     0  874M   0% /run/shm
none            100M     0  100M   0% /run/user

This shows your 7.8GB root partition is only 28% used up, you still have 5.4GB left on it.


Show the running processes

top
top - 01:44:05 up 57 min,  2 users,  load average: 0.00, 0.01, 0.05
Tasks: 138 total,  10 running, 128 sleeping,   0 stopped,   0 zombie
%Cpu(s):  3.6 us,  6.3 sy,  0.0 ni, 90.0 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st
KiB Mem:   1788136 total,   480200 used,  1307936 free,    27056 buffers
KiB Swap:        0 total,        0 used,        0 free.   154956 cached Mem

PID  USER      PR  NI    VIRT    RES    SHR S %CPU %MEM     TIME+ COMMAND
1988 ubuntu    20   0    4620   1192    784 R  6.7  0.1   0:01.66 top
   8 root      20   0       0      0      0 S  2.9  0.0   0:04.08 rcu_preempt
 801 kernoops  20   0    4648    844    592 S  0.3  0.0   0:01.78 kerneloops

This shows that the 2 processes using the most CPU resources are this program "top" (using 6.7% of the CPU) as well as "rcu_preempt" (using 2.9% of the CPU). Hit 'q' to quit top.


Show the PCI devices and which kernel drivers they are using

lspci -v | grep -e ^0 -e driver
00:00.0 PCI bridge: NVIDIA Corporation Device 0e13 (rev a1) (prog-if 00 [Normal decode])
        Kernel driver in use: pcieport
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0c)
        Kernel driver in use: r8169

This shows there is an NVIDIA PCIe port and a Realtek Gigabit Ethernet LAN port using the r8169 driver.


Show the USB devices

lsusb
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

This shows there are 3 x USB2.0 hubs being used. Jetson TK1 actually has a USB3.0 hub, but the drivers for USB3.0 are not configured here and thus they are detected as USB2.0 instead of USB3.0.