Using Shared Memory dev/shm

[bester69]

Hi,

Today, 4Gb RAM came home, finally i can live ...

So, I want to work faster, do i need to enable Shared Memory in fstab?,
I added this line

Code: Select all

tmpfs      /dev/shm      tmpfs   defaults,size=2g   0   0

i see swap RAM partition is almost not growing (just 2MB), so then i understand shared memory is the swap in the RAM, and thats the reason it goes faster; isnt it?

I'd like to know, im not sure i must enable it

[dasein]

So, I want to work faster, do i need to enable Shared Memory in fstab?,

No. Just use your system normally. If you want to minimize swapping, either:

1) Turn off swap completely. The disadvantage of this approach is that your system will hang if you use all 4GB of RAM. (Not at all out of the question, given your demonstrated fondness for wasting system resources.)

2) Reduce swappiness. Your system will still swap to disk, but less often.

Google has details on both methods.

[Head_on_a_Stick]

So, I want to work faster, do i need to enable Shared Memory in fstab?

No.

My Debian jessie system already has that enabled:

Code: Select all

empty@jessie:~$ df -h | grep /dev/shm
tmpfs           1.8G  3.8M  1.8G   1% /dev/shm

[reinob]

So, I want to work faster, do i need to enable Shared Memory in fstab?,

No. Do you know what shared memory is? did anyone tell you this would make you "work faster"?