/dev/shm size?

[JB]

Tom Horsley <horsley1953 <at> gmail.com> writes:

> 
> So, I just noticed that /dev/shm is 4 gig on my system
> with 8 gig of main memory. Does fedora always just automatically
> take half the memory for /dev/shm (I've never seen it say
> more than 1% was in use, so I'm not sure why it thinks
> it needs half). Does tempfs really grab all that memory
> up front? Or is that just some max it can grow to if it
> wants? Just curious if it affects the memory available
> for my virtual machines...
Hi,

http://www.walkernews.net/2010/05/04/how-to-resize-devshm-filesystem-in-linux/

http://rhcelinuxguide.wordpress.com/2006/07/25/what-is-devshm-and-its-practical-usage/

JB