Linux Check Memory Slots Used

4/15/2022 admin

How to check RAM size in Ubuntu. In this tutorial, You are going to learn linux command to check RAM size and system memory information.

Linux Check Memory Slots Used To
Linux Check Memory Slots Used Cars

You should now understand how to use df and du commands to check disk space on your Linux system. Remember, to display a complete list of options, use either df ––help or du ––help. Check out our article on how to use fsck command to run a filesystem check as preventive maintenance or when there is an issue with your system.
How to Check Memory Usage in Linux based Server; Free Up Memory Automatically by Unloading DLLs in How To Check Number Of Physical Memory RAM Slots In Tweak Windows Virtual Memory PageFile.sys (Change or Optimize SQL Server 2000 / 2005 / 2008 in Large RAM Windows Vista 32-bit and 64-bit (x86 and x64).

Check RAM Size in Linux, Ubuntu

To check RAM in your Linux system open the terminal (Ctrl + Alt + T) and type the following command mentioned below.

Display the RAM size in Megabytes (MB).

Welcome to LinuxQuestions.org, a friendly and active Linux Community. You are currently viewing LQ as a guest. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. In this tutorial I will discuss how to use ps command in Linux to check memory the process usage. Check the memory usage for all processes. The following ps command will display%MEM in 1st column, PID in 2nd column and command in 3rd column for all running processes on the system: $ ps -eo pmem,pid,cmd sort -k 1 -nr.

Output –

<table><tbody><tr><td><div><div>2</div><div>4</div></div></td><td><div><div><span>total </span><span>used </span><span>free </span><span>shared </span><span>buffers </span><span>cached</span></div><div><span>-</span><span>/</span><span>+</span><span>buffers</span><span>/</span><span>cache</span><span>:</span><span>6</span><span>1</span></div></div></td></tr></tbody></table><p>How to Install, Uninstall packages using apt-get utility.</p><p>If you want check the linux RAM size in <strong>Kilobytes(KB)</strong>. Then type command free or free -k.</p><div><textarea wrap='soft' readonly='>$ free -ktotal used free shared buffers cachedMem: 8090132 7701836 388296 578340 30400 1018016-/+ buffers/cache: 6653420 1436712Swap: 3998716 871056 3127660

2 4	total used free shared buffers cached -/+buffers/cache:66534201436712

You can get complete system memory information by typing following command.

Linux Check Memory Slots Used To</h2><img src='https://3rdline.files.wordpress.com/2012/07/1-4.jpg' alt='Used' title='Used' /><p><strong># dmidecode 2.11</strong><br /><strong>SMBIOS 2.7 present.</strong></p><p><strong>Handle 0x000F, DMI type 16, 23 bytes</strong><br /><strong>Physical Memory Array</strong><br /><strong> Location: System Board Or Motherboard</strong><br /><strong> Use: System Memory</strong><br /><strong> Error Correction Type: None</strong><br /><span><strong> Maximum Capacity: 16 GB</strong></span><br /><strong> Error Information Handle: No Error</strong><br /><strong> Number Of Devices: <span>2</span></strong></p><p>If you see the above output we can figure it out how much maximum RAM this machine support, number of RAM devices and location etc.</p><p>To get actual RAM details such as how many sa lots, actual RAM present etc, use -t 17 option in dmidecode command</p><p>d<strong>midecode -t 17</strong></p><p>Output:</p><p><strong># dmidecode 2.11</strong><br /><strong>SMBIOS 2.7 present.</strong></p><p><strong>Handle 0x0010, DMI type 17, 34 bytes</strong><br /><strong>Memory Device</strong><br /><strong> Array Handle: 0x000F</strong><br /><strong> Error Information Handle: 0x0011</strong><br /><span><strong>Total Width: 64 bit’s</strong></span><br /><span><strong> Data Width: 64 bit’s</strong></span><br /><span><strong> Size: 4096 MB</strong></span><br /><strong> Form Factor: SODIMM</strong><br /><strong> Set: None</strong><br /><strong> Locator: DIMM0</strong><br /><strong> Bank Locator: BANK 0</strong><br /><span><strong> Type: DDR3</strong></span><br /><strong> Type Detail: Synchronous</strong><br /><strong> Speed: 1333 MHz</strong><br /><span><strong> Manufacturer: Kingston</strong></span><br /><strong> Serial Number: 4B29A74B</strong><br /><strong> Asset Tag: 0123456789</strong><br /><strong> Part Number: 99U5428-046.A00LF </strong><br /><strong> Rank: Unknown</strong><br /><span><strong> Configured Clock Speed: 1333 MHz</strong></span></p><p><strong>Handle 0x0013, DMI type 17, 34 bytes</strong><br /><strong>Memory Device</strong><br /><strong> Array Handle: 0x000F</strong><br /><strong> Error Information Handle: 0x0014</strong><br /><strong> Total Width: 64 bit’s</strong><br /><strong> Data Width: 64 bit’s</strong><br /><strong> Size: 4096 MB</strong><br /><strong> Form Factor: SODIMM</strong><br /><strong> Set: None</strong><br /><strong> Locator: DIMM1</strong><br /><strong> Bank Locator: BANK 2</strong><br /><strong> Type: DDR3</strong><br /><strong> Type Detail: Synchronous</strong><br /><strong> Speed: 1333 MHz</strong><br /><strong> Manufacturer: Kingston</strong><br /><strong> Serial Number: 4729BF4B</strong><br /><strong> Asset Tag: 0123456789</strong><br /><strong> Part Number: 99U5428-046.A00LF </strong><br /><strong> Rank: Unknown</strong><br /><span><strong> Configured Clock Speed: 1333 MHz</strong></span></p><p>If we want to see complete RAM details we can use -t memory option to get the details. Note this is a combination of 16 and 17 options</p><p><strong>dmidecode -t memory</strong></p><p>Output:</p><p><strong># dmidecode 2.11</strong><br /><strong>SMBIOS 2.7 present.</strong></p><img src='https://ostechnix.com/wp-content/uploads/2016/11/dmidecode-memory.png' alt='Linux Check Memory Slots Used' title='Linux Check Memory Slots Used' /><p><strong>Handle 0x000F, DMI type 16, 23 bytes</strong><br /><strong>Physical Memory Array</strong><br /><strong> Location: System Board Or Motherboard</strong><br /><strong> Use: System Memory</strong><br /><strong> Error Correction Type: None</strong><br /><strong> Maximum Capacity: 16 GB</strong><br /><strong> Error Information Handle: No Error</strong><br /><strong> Number Of Devices: 2</strong></p><p><strong>Handle 0x0010, DMI type 17, 34 bytes</strong><br /><strong>Memory Device</strong><br /><strong> Array Handle: 0x000F</strong><br /><strong> Error Information Handle: 0x0011</strong><br /><strong> Total Width: 64 bit’s</strong><br /><strong> Data Width: 64 bit’s</strong><br /><strong> Size: 4096 MB</strong><br /><strong> Form Factor: SODIMM</strong><br /><strong> Set: None</strong><br /><strong> Locator: DIMM0</strong><br /><strong> Bank Locator: BANK 0</strong><br /><strong> Type: DDR3</strong><br /><strong> Type Detail: Synchronous</strong><br /><strong> Speed: 1333 MHz</strong><br /><strong> Manufacturer: Kingston</strong><br /><strong> Serial Number: 4B29A74B</strong><br /><strong> Asset Tag: 0123456789</strong><br /><strong> Part Number: 99U5428-046.A00LF </strong><br /><strong> Rank: Unknown</strong><br /><strong> Configured Clock Speed: 1333 MHz</strong></p><p><strong>Handle 0x0013, DMI type 17, 34 bytes</strong><br /><strong>Memory Device</strong><br /><strong> Array Handle: 0x000F</strong><br /><strong> Error Information Handle: 0x0014</strong><br /><strong> Total Width: 64 bit’s</strong><br /><strong> Data Width: 64 bit’s</strong><br /><strong> Size: 4096 MB</strong><br /><strong> Form Factor: SODIMM</strong><br /><strong> Set: None</strong><br /><strong> Locator: DIMM1</strong><br /><strong> Bank Locator: BANK 2</strong><br /><strong> Type: DDR3</strong><br /><strong> Type Detail: Synchronous</strong><br /><strong> Speed: 1333 MHz</strong><br /><strong> Manufacturer: Kingston</strong><br /><strong> Serial Number: 4729BF4B</strong><br /><strong> Asset Tag: 0123456789</strong><br /><strong> Part Number: 99U5428-046.A00LF </strong><br /><strong> Rank: Unknown</strong><br /><strong> Configured Clock Speed: 1333 MHz</strong></p><p>Some of the valid keywords/types you can use and find different details are as follows.</p><h3><strong>bios</strong></h3><h3><strong>system</strong></h3><h3><strong> baseboard</strong><br /><strong> chassis</strong><br /><strong> processor</strong><br /><strong> memory</strong><br /><strong> cache</strong><br /><strong> connector</strong><br /><strong> sa lot</strong></h3><p>We can even use lshw command to get RAM/Memory details as well Cache details such as L1, L2 and L3 levels.</p><p><strong>lshw -class memory</strong></p><p><strong>*-firmware </strong><br /><strong> description: BIOS</strong><br /><strong> vendor: Hewlett-Packard</strong><br /><strong> physical id: 0</strong><br /><strong> version: F.22</strong><br /><strong> date: 07/27/2011</strong><br /><strong> size: 1MiB</strong><br /><strong> capacity: 2496KiB</strong><br /><strong> capabilities: pci upgrade shadowing cdboot bootselect edd int13floppynec int13floppytoshiba int13floppy360 int13floppy1200 int13floppy720 int13floppy2880 int9keyboard int10video acpi usb biosbootspecification uefi</strong><br /><strong> *-memory</strong><br /><strong> description: System Memory</strong><br /><strong> physical id: f</strong><br /><strong> sa lot: System board or motherboard</strong><br /><span><strong> size: 8GiB</strong></span><br /><strong> *-bank:0</strong><br /><strong> description: SODIMM DDR3 Synchronous 1333 MHz (0.8 ns)</strong><br /><strong> product: 99U5428-046.A00LF</strong><br /><span><strong> vendor: Kingston</strong></span><br /><strong> physical id: 0</strong><br /><strong> serial: 4B29A74B</strong><br /><strong> sa lot: DIMM0</strong><br /><strong> size: 4GiB</strong><br /><strong> width: 64 bit’s</strong><br /><strong> clock: 1333MHz (0.8ns)</strong><br /><strong> *-bank:1</strong><br /><strong> description: SODIMM DDR3 Synchronous 1333 MHz (0.8 ns)</strong><br /><strong> product: 99U5428-046.A00LF</strong><br /><strong> vendor: Kingston</strong><br /><strong> physical id: 1</strong><br /><strong> serial: 4729BF4B</strong><br /><strong> sa lot: DIMM1</strong><br /><strong> size: 4GiB</strong><br /><strong> width: 64 bit’s</strong><br /><strong> clock: 1333MHz (0.8ns)</strong><br /><strong> *-cache:0</strong><br /><strong> description: L1 cache</strong><br /><strong> physical id: 1c</strong><br /><span><strong> sa lot: L1 Cache</strong></span><br /><span><strong> size: 32KiB</strong></span><br /><strong> capacity: 32KiB</strong><br /><strong> capabilities: synchronous internal write-through instruction</strong><br /><strong> *-cache:1</strong><br /><strong> description: L2 cache</strong><br /><strong> physical id: 1d</strong><br /><span><strong> sa lot: L2 Cache</strong></span><br /><span><strong> size: 256KiB</strong></span><br /><strong> capacity: 256KiB</strong><br /><strong> capabilities: synchronous internal write-through unified</strong><br /><strong> *-cache:2</strong><br /><strong> description: L3 cache</strong><br /><strong> physical id: 1e</strong><br /><span><strong> sa lot: L3 Cache</strong></span><br /><span><strong> size: 3MiB</strong></span><br /><strong> capacity: 3MiB</strong><br /><strong> capabilities: synchronous internal write-through unified</strong><br /><strong> *-cache</strong><br /><strong> description: L1 cache</strong><br /><strong> physical id: 1b</strong><br /><strong> sa lot: L1 Cache</strong><br /><strong> size: 32KiB</strong><br /><strong> capacity: 32KiB</strong><br /><strong> capabilities: synchronous internal write-through data</strong></p><h2 id='linux-check-memory-slots-used-cars'>Linux Check Memory Slots Used Cars</h2><p>Do let us know if there is any way to find RAM sa lot details.</p><span>The following two tabs change content below.</span><div>Mr Surendra Anne is from Vijayawada, Andhra Pradesh, India. He is a Linux/Open source supporter who believes in Hard work, A down to earth person, Likes to share knowledge with others, Loves dogs, Likes photography. He works as Devops Engineer with Taggle systems, an IOT automatic water metering company, Sydney . 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