:: What’s tmpfs
tmpfs is a common name for a temporary file storage facility on many Unix-like operating systems.

 
:: How to increase tmpfs or /dev/shm size
+ See current size

some like this

 
+ Increase /dev/shm size

change like this:

size=2g : if you want set to 2 GB

 
+ Remount /dev/shm

 
+ See /dev/shm size

some like this:

 
:: Links
+ Google
+ WalkerNews