X much slower in Gentoo than in Mandrake. How come? [SOLVED]

[mariux2]

[SOLVED I THINK]
I started xfs (X Font Server) and removed all the extra stash from the Device-section so that it looks like this:

Quote:

Section "Device" Identifier "Card0" Driver "nvidia" BusID "PCI:1:0:0" # Option "AllowGLXWithComposite" "true" Option "NoLogo" "on" # Option "RenderAccel" "True" # Option "UseEdidFregs" "1" # Option "NvAGP" "0" # Option "VideoOverlay" "on" # Screen 0 #Option "HWCursor" "off" EndSection

That seems to have solved the problem (don't know which of the two that did the trick though)
[/SOLVED I THINK]

[Original post]
Hi, i've been struggeling with the fact that i think my Gentoo installation is so slow (only X that is slow)
xmms/amarok is for example skipping when i close/open a new tab in opera/firefox and everything application is generally sloppy/slow/laggy. This applies to many WM's and DE's, including KDE 3.4, Openbox 3 and EvilWM.
Then i tried installing Mandrake 10.1 on it and its alot faster/responsive, but i dont want Mandrake, i want Gentoo, so does anyone know/have any idea why my Gentoo is so slow?

My system is a p3 800mhz, 512mb ram, 80gb seagate with two nVidia TNT2 card (and two monitors) running dualhead sometimes with and sometimes without xinerama (in both cases it is slow).
My gentoo is a gcc 2005.0 with gcc 3.4, 2.6.11-ck, X.org 6.8.2 and everything generally up ot date (emerge -u system && emerge -u world).
I use the closed source nVidia drivers and i have Coposition/XDamage disabled.

CFLAGS="-O2 -pipe -march=pentium3 -fomit-frame-pointer"

hdparm: all_args="-d1 -S60"

[aidy]

Are you building everything with -03? Because when I first did that, I got 1400 FPS with GLXGears. When I rebuild X.org with -Os I got 2000!

[djsmiley2k]

is -Os not size? Surely that makes no sense?

How about if its run with only one card? What is it like then?

[neuron]

-Os is optimize for size yes.. doesn't make much sense, either way glxgears is a horrible benchmark.

Just... hdparm /dev/hdX, you do have dma on right? , since mandrake uses a pre built kernel that could be where your problem lies.

[Chaosite]

-Os might make the code fit better into the processor cache. You never know. (glxgears is still a horrible benchmark. It seems to be a strangely consistent [ on the same machine ] horrible benchmark, though :/).

[lenk]

mandrake probably prelinks its whole system. I'm not sure.
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[djsmiley2k]

Anyone explain why this is labled as solved? In my minisule existance i truely cannot find a real reason of the effect listed behind the effect that the poster of this message has left.

In other words, where is this difference explained? Is it the fact that glxgears is a useless benchmark? Is it that the mandrake system MIGHT be pre-linked ?

Anyone care to explain this to a curious noobie?

[Gentree]

Firstly , glxgears is NOT a bench mark. Neither did the original poster even mention it.

It's solved apparently in the sense that he is now happy with it, and in a very vague way of it being "sloppy/slow" it is now as "responsive" as Mandrake.

It's true this sort of vague , subjective comment is not much help to the rest of the world so dont expect to get much from it.

It seems likely that since one of the things he removed from xorg.conf was composite that may well have had a noticable improvement on his somewhat old h/w.

BTW, incase anyone missed it glxgears isn't a horrible benchmark it is NOT a benchmark.
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