[mythtv-users] ramfs for mysql

[Dan Wilga]

On 12/23/11 8:47 AM, Josu Lazkano wrote:
> 2. I read that there are two different ram based fs, ramfs and tmpfs,
> which is the recommended one for mysql?
>    
I went looking for documentation on this, and discovered that use of 
ramfs by any user other than root is strongly discouraged, because ramfs 
can potentially consume all available RAM, and there is no way to 
enforce a limit.

So the better way to go is, most likely, tmpfs. By default, most distros 
will include an entry like this is /etc/fstab:

tmpfs                   /dev/shm                tmpfs   defaults        0 0

which mounts a ramdisk at /dev/shm. By default, it will resize 
dynamically, up to half of the system RAM. If you want to have some 
other maximum size, you can use the "size" mount option.

-- 
Dan Wilga                                                        "Ook."