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How to find the virtual memory address size in Linux Ubuntu?

13/04/2015 03:56#1

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I need to find the virtual address size supported in my PC running Linux Ubuntu. Following is my kernel version:

$ uname -a Linux ubuntu 2.6.28-11-generic #42-Ubuntu SMP Fri Apr 17 01:57:59 UTC 2009 i686 GNU/Linux 

I also ran 'free' to know this, as per some earlier posts in this forum:

***@ubuntu:~$ free              total       used       free     shared    buffers     cached Mem:       2963968     740752    2223216          0     217648     360296 -/+ buffers/cache:     162808    2801160 Swap:       262136          0     262136 

However, the value that I obtained is not a power of 2, as I had expected.

Please let me know the correct way to obtain the total virtual memory address space. Thanks in advance for your help.

08/07/2016 15:38Top#2

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Use following command

cat /proc/meminfo

You will get a list of information

You can seeVmallocTotal, is the size of total virtual memory allocated.

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