[oclug] Re: Gods thing

John E Pearson pearson at lanm-pc.com
Tue Apr 24 11:10:55 EDT 2001


(Hazen Valliant-Saunders), Tom G. et al

And here I was thinking that the Gods spent all their time doing pure
mathematics and not mucking with X windows!  I was enjoying that X-windows
exchange even though it bordered on the uncivil. I thought there must
be others curious about how much space X was using on a variety of systems
or am I the only one interested in seeing that? Here are the results from
some boxes of mine:

TYPE OF BOX       RAM    Video Ram    MEMORY USED BY X
4 yr old IBM      32M    not sure          6.8M
ThinkPAD 760XD
Dell 410 PII     256M     8M               28M
PIII             768M    64M               180M
w/ Elsa Gloria III graphics card

These are all more or less default installs of various versions
of RedHat (6.2 for thinkPad, 5.2 for Dell, and 7.0 for PIII).

Will decreasing X's memory consumption improve performance?
The memory consumption changes depending on what the machine is doing.
WHen I started running a purely numerical C++ program on the Dell that
used around 35% of the RAM, X's memory consumtion dropped to about 22MB.
Will number crunching applications that don't need X run faster without X?
It would be interesting to do some comparative performance studies of
graphics intensive applications on a variety of platforms and
configurations. If anyone is interested in doing that let me know
off line and maybe we can come up with a few tests??

Given that you (Hazen Valiant-Saunders) have done
all this memory optimization maybe you could provide the
us mere mortals with some pointers into the 1000's of pages?

jp
http://www.lanm-pc.com











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