How to check the Linux VPS's RAM spe开发者_Go百科ed? Actually as per my VPS plan, I am supposed to get 2GB RAM, but I doubt that I am getting only 128MB. Please help me in finding the server's RAM speed.

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There are several ways on how to check the memory usage on linux virtual Private Server (VPS). Refer to this howto for more details :

1. Check memory usage using “/proc/meminfo” command:

   cat /proc/meminfo

2. Check memory usage using “free -m” command :

   free -m

3. Check memory usage using “top” command :

   top

4. Check memory usage using “vmstat” command :

   vmstat

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If you want to know the amount of memory (wich seems more probable) you have available, not the speed of RAM, then consider using command free.

free -m

This will give you the ammount of memory you have available and memory in use, in MB.

See also: man free

Or if you really want to see your RAM speed then this might help

sudo lshw -short -C memory
H/W path           Device           Class          Description
==============================================================
/0/0                                memory         64KiB BIOS
/0/3a                               memory         16GiB System Memory
/0/3a/0                             memory         [empty]
/0/3a/1                             memory         8GiB DIMM DDR4 Synchronous 2666 MHz (0,4 ns)
/0/3a/2                             memory         [empty]
/0/3a/3                             memory         8GiB DIMM DDR4 Synchronous 2666 MHz (0,4 ns)
/0/44                               memory         384KiB L1 cache
/0/45                               memory         1536KiB L2 cache
/0/46                               memory         9MiB L3 cache
/0/100/14.2                         memory         RAM memory

man lshw

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If you want to find out the memory capacity, you can use "top" on the command-line/terminal. The total memory is expressed in the top left as ...

Mem:    1234567k total,

If you want to obtain memory speed information, you'll probably encounter problems under a VPS ... you can always get arbitrary performance figures using something like RAMspeed, but I'm not aware of a way to get accurate frequency/latency/etc. information on a VPS.