[mythtv] RAMDISK

Matt Zimmerman mythtv-dev@snowman.net
Mon, 4 Nov 2002 12:47:59 -0500


On Mon, Nov 04, 2002 at 09:51:00AM -0600, Robert Kulagowski wrote:

>  
> > > Did some quick calculations; 30 seconds of buffering at 3300Kbps
> > > would require 12-13 megabytes of DRAM.
> > Too complicated to do properly
> 
> Right, I was just thinking that something like the RAMDISK would help
> smooth out any jitters related to I/O starvation through the hard
> drive.  You're right that if the reader and writer got too far out of
> sync you'd get stuck in the continuous reading from hard drive case.

You're better off letting the kernel manage the buffer cache in this case, I
think, rather than forcing it to dedicate a lot of memory to this.

-- 
 - mdz