Subject: Re: X server as a Unix system process
To: None <rkambo@in.oracle.com>
From: Todd Vierling <tv@pobox.com>
List: tech-kern
Date: 07/14/1997 12:13:12
On 14 Jul 1997, RKAMBO.IN.ORACLE.COM wrote:
: What could be the possible advantages and disadvantages of making the
: X server a Unix system process just as NFS is made part of the Unix kernel?
: Would there be considerable/visible speedups in the servicing of client
: requests?
Speedups? Probably not; in fact, you'd probably see _slowdowns_. The
kernel is made to be reasonably fast and compact to reduce the amount of
time spent in kernel tasks (which have varying degress of "exclusive
processor use"). In user processor mode, all those problems are solved.
Since a mmap() (memory mapping) of the video memory is done via 'options
INSECURE' or the apm module, the X server is really as fast as it can get.
=====
== Todd Vierling (Personal tv@pobox.com; Business tv@iag.net) Foo-bar-baz! ==
== System administrator/technician, Internet Access Group, Orlando Florida ==
== Dialups in Orange, Volusia, Lake, Osceola counties - http://www.iag.net ==