Gentoo + Opteron = System Stuttering

Midnight Dream · Jan 2, 2006

Ok, need some help here. For some reason, unknown to me, I am getting some stuttering in my system. Its not a very huge obvious thing, I can run music and all fine, but when I am moving my mouse, scrolling down a webpage, even holding down a key in Gedit shows that it stutters every few seconds. Any thoughts?

SatanSkin · Jan 3, 2006

hmmmm... perhaps check out nxsty's glibc overlay here http://forums.gentoo.org/viewtopic-t-376943.html as well as using the -Bdirect flag. Also, consider checking out either the ck-sources or nitro-sources. All of those have helped me improve the responsiveness of my system.

Midnight Dream · Jan 3, 2006

Got the nitro sources, no luck. Do you by chance have a messenger program? I would really like to talk to somebody in realtime, and some of the things you pointed to me are alittle bit more advanced then I am comfortable with right now.

MRD · Jan 3, 2006

2 things to check:

1) is dma enabled for the hard drives
2) are you using the accelerated video drivers

Midnight Dream · Jan 3, 2006

1) Using sata as my primary HDD, but yes, DMA is enabled on the ones that are ATA
2) Yes. Hardware Acceleration is working.

Its not a bad thing, its just really really annoying, and at times, very obvious. Im sure it will affect my game performance. I'm wondering if I should just start over and try again.

Midnight Dream · Jan 3, 2006

I have noticed that none of my swap space is used. Normal?

MRD · Jan 3, 2006

Did you turn on the swap? (swapon command)

Midnight Dream · Jan 3, 2006

Yea, swap is on. I even attempted to turn swap off, do the mkswap command, and issue swapon again. No luck.

MRD · Jan 3, 2006

Do you see a swap when you cat /etc/mtab?

SatanSkin · Jan 3, 2006

How much ram do you have? If you have close a gig, you will rarely see your swap being used. You might also want to try running 'top' to see if there is anything eating up your cpu and/or ram.

Midnight Dream · Jan 3, 2006

yea, 1gb, and already tried, nada. My CPU is barely being used at all.

Midnight Dream · Jan 3, 2006

yea, 1gb, and already tried, nada. My CPU is barely being used at all.

I've figured out that it has something to do with my eth0. I know that its filling up my dmesg with a message:

eth0: -- ERROR --
Class: internal Software error
Nr: 0x19e
Msg: Vpd: Cannot read VPD keys

But this was said to be normal on these boards. Not sure what I should do in this case.

Gnufsh · Jan 3, 2006

Can you post your dmesg and the output of glxinfo?

Midnight Dream · Jan 3, 2006

Not at my computer right now, but I can tell you that dmesg fills up with the error message I posted above in a matter of minutes, and my glxinfo is fine, for when I run glxgears, I get 10000+ FPS, its just this jump. I was told that it might be an issue with interrupts, as my ethernet, graphics card, and soundcard are all sharing a single interrupt. Im going to try moving a few things around when I get home.

MRD · Jan 3, 2006

I don't understand what your dmesg error means, but it looks suspicious to me. Of course, I could be totally wrong. I'd try to track that down by googling.

Super Nade · Jan 3, 2006

Middo,

Is this a stage 1/2 install? If so, what CFlags did you use?

Midnight Dream · Jan 3, 2006

MRD, I have. Its an issue with the VPD released on that driver. There is supposed to be a fix for it in the kernel, and I looked only to find the fix already there, but not working for the error on my system for some reason.

Nade, its a stage 2 install, and its just the default for the stage. I only added MAKEOPTS="-j2" and my USE flags.

Gnufsh · Jan 3, 2006

Midnight Dream said:
Not at my computer right now, but I can tell you that dmesg fills up with the error message I posted above in a matter of minutes, and my glxinfo is fine, for when I run glxgears, I get 10000+ FPS, its just this jump. I was told that it might be an issue with interrupts, as my ethernet, graphics card, and soundcard are all sharing a single interrupt. Im going to try moving a few things around when I get home.

Are you using I/O APIC and/or ACPI? If so, interrups shouldn't be a problam (AFAIK).
MAKEOPS="-j2" is your MAKEOPTS, not your USE flags, which weren't what you were asked about anyway. How aboput just posting your emerge info?

Midnight Dream · Jan 3, 2006

Gnufsh said:
Are you using I/O APIC and/or ACPI? If so, interrups shouldn't be a problam (AFAIK).

Not sure. I assume that is in the kernel. Where might I find information on that?

Gnufsh said:
MAKEOPS="-j2" is your MAKEOPTS, not your USE flags, which weren't what you were asked about anyway.

I know, but im saying those are the only 2 things within my make.conf I changed, the MAKEOPTS and adding USE flags

Gnufsh said:
How aboput just posting your emerge info?

How would I go about getting said information?

Midnight Dream · Jan 3, 2006

Fixed. It was a freaking gimp driver in the kernel. They have both a new and old version of the Marvel Yukon, but the updated one doesnt have the Marvel Yukon tag. Note to all with DFI - All Marvel Yukon gigabyte lans - Make SURE to use the updated driver. If you are getting a spam of bad VPD, you are not using the correct driver.

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