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senectus
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Joined: 17 Jul 2003
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 Posted: Thu Jul 08, 2004 9:32 pm Post subject: Gentoo used to be faster on my system :-( |
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I've had Gentoo installed twice on my PC at home.
The first time I had help installing it, and when I had it up and running it was damn quick and very nice...
Since then I've rebuilt it (don't ask  ), and this time I built it totally myself.. but its not as quick as it used to be... can anyone make a suggestion as to how I might speed it up? or at least get it back to similiar performance that I had before?
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beandog
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Joined: 04 May 2003
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| Posted: Thu Jul 08, 2004 9:45 pm Post subject: |
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What's your use flags, rc-update -s, worldfile and architecture / setup?
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senectus
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Joined: 17 Jul 2003
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| Posted: Thu Jul 08, 2004 10:47 pm Post subject: |
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Well this is a copy and paste from the /etc/make.conf file:
| Code: | CFLAGS="-O2 -march=athlon-xp -fomit-frame-pointer"
CHOST="i686-pc-linux-gnu"
USE="mmx 3dnow gtk2 gnome qt kde dvd alsa cdr avi jpeg java mpeg mozilla opengl" CXXFLAGS="${CFLAGS}" |
its the 2.6.6 kernel.
Its an Athlon XP2800+ (barton core processor)
Asus A7N8X
GeForce 5600 FX (128mb)
512mb ram
1 drive (I'm not sure how to get the info for that...)
Is there any other info you need?
** edit**
oh and :
| Code: |
Last login: Fri Jul 9 06:22:53 2004 from croaker
one-eye root # rc-update -s
alsasound | boot
apmd |
bootmisc | boot
checkfs | boot
checkroot | boot
clock | boot
consolefont | boot
crypto-loop |
cupsd |
domainname | default
esound |
famd | default
gdm | default
gkrellmd |
gpm |
hdparm |
hostname | boot
keymaps | boot
lisa |
lm_sensors |
local | default nonetwork
localmount | boot
metalog | default
modules | boot
mondo |
net.eth0 | default
net.lo | boot
net.ppp0 |
netmount | default
nscd |
numlock |
portmap |
reslisa |
rmnologin | boot
rsyncd |
samba |
serial | boot
sshd | default
urandom | boot
vixie-cron | default
wasabi |
webmin | default
winbind |
xdm |
xfs |
one-eye root #
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megadonkey
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Joined: 24 Apr 2004
Posts: 224
Location: Bohuslän, Sweden
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| Posted: Thu Jul 08, 2004 10:51 pm Post subject: |
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Check the output of:
and see if you have dma enabled.
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senectus
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| Posted: Thu Jul 08, 2004 11:06 pm Post subject: |
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thanks.
| Code: | /dev/hda:
multcount = 16 (on)
IO_support = 1 (32-bit)
unmaskirq = 1 (on)
using_dma = 1 (on)
keepsettings = 0 (off)
readonly = 0 (off)
readahead = 256 (on)
geometry = 65535/16/63, sectors = 156301488, start = 0
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DMA looks to be on?
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DarrenM
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Joined: 25 Apr 2002
Posts: 653
Location: Sydney, Australia
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| Posted: Fri Jul 09, 2004 12:05 am Post subject: |
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DMA is on.
In what way is it slower though? Slower disk speed/app load times, slower booting, lower frame rates in games, less responsive desktop?
Maybe you have pre-emptive kernel support before but not now or something like that? |
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senectus
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| Posted: Fri Jul 09, 2004 12:15 am Post subject: |
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Well, some apps seem slower to kick in.
Games seem to take AGES to load (both native and Cedega 4.0 ).
I seem to get really REALLY crap disk/internet performance when I have downloads going (even when I'm only using 10% of my total ADSL bandwidth.
It performs like a dog when I'm un/zipping.
Just general "feel" is poor...
I used the 2.4 kernel last time, and this time I'm on the 2.6.
I tried enabling pre-linking... but noticed ZERO change in performance...
one thing i noticed is that when it boots it says something about the hard drives running at 33mhz ???
Shouldn't this be at least 66 if not 100?
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megadonkey
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| Posted: Fri Jul 09, 2004 12:26 am Post subject: |
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| Quote: | one thing i noticed is that when it boots it says something about the hard drives running at 33mhz ???
Shouldn't this be at least 66 if not 100? |
If I'm not completely mistaken that is the speed of the pci bus. It probably should be 33 mhz. Unless you've got 66 mhz pci-slots in your comp.
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beandog
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Joined: 04 May 2003
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Location: /usa/utah
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| Posted: Fri Jul 09, 2004 1:12 am Post subject: |
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| senectus wrote: |
Its an Athlon XP2800+ (barton core processor)
Asus A7N8X
GeForce 5600 FX (128mb)
512mb ram
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Man, with that kind of system, I dont know how you could even find a slowdown. Only a few things I can think of -- make sure hdparm is enabled on boot (rc-update add hdparm default), use reiserfs for your filesystem, and try ck-sources. 
Steve
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senectus
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| Posted: Fri Jul 09, 2004 1:30 am Post subject: |
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Ok will try that thanks..
Should I have noticed a decent speed increade with the pre-linking?
Would I get better peformance If I had a Raid array (SATA) using the onboard raid support?
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beandog
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Joined: 04 May 2003
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| Posted: Fri Jul 09, 2004 4:01 am Post subject: |
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| senectus wrote: | | Should I have noticed a decent speed increade with the pre-linking? |
No clue.
| senectus wrote: | | Would I get better peformance If I had a Raid array (SATA) using the onboard raid support? |
Even using an SATA drive you'll notice speed improvements.
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hardcore
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| Posted: Fri Jul 09, 2004 6:44 am Post subject: |
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| It's more than likely the difference in kernel's. The 2.4 and 2.6 mainline schedulers are vastly different. You may want to try out love-sources with nick's scheduler. |
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senectus
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| Posted: Fri Jul 09, 2004 7:28 am Post subject: |
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| hardcore wrote: | | It's more than likely the difference in kernel's. The 2.4 and 2.6 mainline schedulers are vastly different. You may want to try out love-sources with nick's scheduler. |
heh.. Don't tempt me
I'd love to try love sources... but don't want the bleeding edge issue's associated with them..
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neuron
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| Posted: Fri Jul 09, 2004 10:39 am Post subject: |
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I'd emerge ck-sources, should be damn stable, and has staircase scheduler and cfq per default.
another thing, is your hostname set up correctly? Kde can have huge slowdowns if that's not set up right. |
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petrjanda
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| Posted: Fri Jul 09, 2004 12:24 pm Post subject: |
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try differnt CFLAGS, try -pipe , -funroll-loops etc.
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senectus
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| Posted: Fri Jul 09, 2004 12:42 pm Post subject: |
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| petrjanda wrote: | | -funroll-loops |
?!?
Isn't that the website that proclaims gentoo to be for ricer's??
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dyqik
Tux's lil' helper
Joined: 08 May 2003
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Location: Oxford, UK
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| Posted: Fri Jul 09, 2004 12:54 pm Post subject: |
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-pipe doesn't affect the speed of compiled programs at all, it just speeds up compilation by piping data between different aspects of the build process. So you should use it, but it won't make things feel faster.
I think you need "pic" in your use flags to make prelink really work well, but I could be wrong on that. Use the prelinking guide in the user docs.
Have you made any major changes to the disk partition layout? |
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petrjanda
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Location: Brno, Czech Republic
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| Posted: Fri Jul 09, 2004 1:01 pm Post subject: |
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| senectus wrote: | | petrjanda wrote: | | -funroll-loops |
?!?
Isn't that the website that proclaims gentoo to be for ricer's?? |
no 
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petrjanda
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Joined: 05 Sep 2003
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Location: Brno, Czech Republic
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| Posted: Fri Jul 09, 2004 1:02 pm Post subject: |
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| dyqik wrote: | -pipe doesn't affect the speed of compiled programs at all, it just speeds up compilation by piping data between different aspects of the build process. So you should use it, but it won't make things feel faster.
I think you need "pic" in your use flags to make prelink really work well, but I could be wrong on that. Use the prelinking guide in the user docs.
Have you made any major changes to the disk partition layout? |
thanx, whats ftracer for? cuz I have it in my cflags and i dont know what it does..
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count_zero
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Location: Little Rock, Arkansas, USA
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| Posted: Fri Jul 09, 2004 2:48 pm Post subject: |
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I enabled it on my machine. I'm not sure what it does, but it seems to be useful for some good speed increases. Check out this site for more on cflags and optimization: http://www.coyotegulch.com/acovea/
ftracer was an option that seemed to increase performance across the benchmarks.
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luqas
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Location: /US/Texas/Beaumont
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| Posted: Fri Jul 09, 2004 2:56 pm Post subject: |
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| dyqik wrote: | | I think you need "pic" in your use flags to make prelink really work well, but I could be wrong on that. Use the prelinking guide in the user docs. |
So I guess I need to add pic to my USE and then emerge -e world? Can anyone verify that pic makes prelink work better (I don't feel like waiting through a full recompile  )? The prelink documentation does not specify anything about the pic USE flag. It does mention the during a compile programs should use the gcc -fpic option. I am trying to find something that specifies that. Thanks dyqik for the tip.
Last edited by luqas on Fri Jul 09, 2004 3:07 pm; edited 1 time in total |
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senectus
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| Posted: Fri Jul 09, 2004 3:04 pm Post subject: |
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| petrjanda wrote: | | senectus wrote: | | petrjanda wrote: | | -funroll-loops |
?!?
Isn't that the website that proclaims gentoo to be for ricer's?? |
no |
yes it is
http://funroll-loops.org/
I knew I'd seen it before...
(note I don't want this link to turn this thread into a flame fest.. )
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petrjanda
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Joined: 05 Sep 2003
Posts: 1557
Location: Brno, Czech Republic
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| Posted: Sat Jul 10, 2004 1:26 am Post subject: |
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| senectus wrote: | | petrjanda wrote: | | senectus wrote: | | petrjanda wrote: | | -funroll-loops |
?!?
Isn't that the website that proclaims gentoo to be for ricer's?? |
no |
yes it is
http://funroll-loops.org/
I knew I'd seen it before...
(note I don't want this link to turn this thread into a flame fest.. ) |
funroll-loops is a CFLAG... 
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There is, a not-born, a not-become, a not-made, a not-compounded. If that unborn, not-become, not-made, not-compounded were not, there would be no escape from this here that is born, become, made and compounded. - Gautama Siddharta |
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Abraxas
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Joined: 25 May 2003
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| Posted: Sun Jul 11, 2004 3:57 pm Post subject: |
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| senectus wrote: | Well, some apps seem slower to kick in.
Games seem to take AGES to load (both native and Cedega 4.0 ).
I seem to get really REALLY crap disk/internet performance when I have downloads going (even when I'm only using 10% of my total ADSL bandwidth.
It performs like a dog when I'm un/zipping.
Just general "feel" is poor...
I used the 2.4 kernel last time, and this time I'm on the 2.6.
I tried enabling pre-linking... but noticed ZERO change in performance...
one thing i noticed is that when it boots it says something about the hard drives running at 33mhz ???
Shouldn't this be at least 66 if not 100? |
That is the idebus. If you have a faster bus then you can override this by adding "idebus=xx" (where xx is the speed) to your grub options.
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senectus
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| Posted: Wed Jul 21, 2004 12:23 pm Post subject: |
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I bought a new drive (needed more space anyhow) Its a seagate 200gig 7200rpm IDE PATA drive..
I ghosted my Gentoo install over to it and now it FLIES!
Its amazing the diff a good fast drive will make..
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