Subject: Re: mfs read operations.
To: Bill Studenmund <>
From: Jason R Thorpe <>
List: tech-kern
Date: 07/23/2001 11:55:52
On Mon, Jul 23, 2001 at 11:32:39AM -0700, Bill Studenmund wrote:

 > Won't matter much. Right now to mount an mfs file system is a fixed size.
 > Memory is allocated at fs creation, not when files are created. So
 > deleting a file won't change its memory footprint.

Well, sort of.  The memory is "allocated", but it's lazily allocated,
i.e. physical pages aren't actually there until they are first used.

The pages for an MFS can also be paged out to swap space.

        -- Jason R. Thorpe <>