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Old 03-29-2006, 03:41 PM   #16
marin_r
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Hi,

I'm using FC5 on my ThinkPad T23, with PIII 1.13ghz.
There is no such thing as slowing down when selecting the screen with left mouse button pressed.

I really believe this is X problem,not FC...
Get 2.6.16 kernel, nvidia driver, and it should be fine.

I'm a newcomer to fedora, and I must say I find it polished and well made enough to deserve my attention.
You should tweak it a bit, anyway, and I'm sure it'll run perfectly on your box, because it does on mine, which is roughly twice slower.
And also there really doesn't matter whether you hava AMD or Intel CPU, the default kernel is optimized for pentium pro/II or something just as generic. And processor optimizations don't make that big difference, they add a bit ofcourse, but not that much.

Its worth to spend few days reading and trying stuff, recompiling your own kernel, etc.

Good Luck and don't give up
 
Old 03-29-2006, 04:20 PM   #17
fannymites
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I am also running an AMD and have noticed FC5 to be very sluggish on the desktop but I have only booted fedora once since I installed it so I haven't gotten around to doing anything yet but something that may help is that I have been running ubuntu dapper from day one and after a kernel update the desktop on that was very sluggish also, after about 3 months of this I happened to copy the information from xorg.conf on my kanotix install over to my ubuntu xorg.conf as last ditch effort to work out the problem and now it runs much fater and is very responsive. It seems it was down to the refresh rates in xorg.conf being wrongly setup by ubuntu. I'll be trying the same thing with fedora when I get round to it.

[EDIT] The horrible scrolling in firefox was also a "feature" of this xorg problem in dapper.

Last edited by fannymites; 03-29-2006 at 04:46 PM.
 
Old 03-29-2006, 05:09 PM   #18
lchxr
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I have a similar problem with my Intel Celeron CPU. I downloaded FC5 after it was officially released, and upgraded from FC3. Many of my old applications cannot run, such as xfig, gsview and dia. It took one minute to start up Emacs. The problem I thought is I need to reinstall everything, never upgraded it
.
 
Old 03-29-2006, 05:46 PM   #19
sancho
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I just installed FC5 (fresh install) after using FC4. I, too, have noticed some serious performance issues since upgrading as well. And, wouldn't ya know it, I'm running an AMD system.

The bootup time is acceptable--I wouldn't say faster than FC4, but not likely slower either (I've disabled all unneccessary services). Logging into GNOME has been pretty quick before--however, lately, it's been pausing for about 10 seconds on the splash screen.

The main problem is application loading time for me. I wish I had more real numbers for you, but I'll toss out some estimates...

1. Firefox takes ~25 seconds from the time I click the icon to seeing the browser. Significantly longer than on FC4.

2. OpenOffice takes 20 seconds to launch (I timed this). Granted, it doesn't load terribly quick on any machine I have, but it certainly is slower than FC4 on this same machine.

3. I tried launching Yumex as a normal user; the root password prompt window took about 10 seconds to pop up. This used to be instantaneous--I actually thought maybe I hadn't clicked it and had enough time to try to launch it a second time on accident while it was still loading.

4. NX viewer takes ~7 seconds to load the login prompt. This is a small applicaiton that used to be almost instantaneous (maybe 2 secs at most).

This is on my Compaq laptop: AMD Turion64 (3700+), 1GB RAM, ATI graphics (32 MB shared memory reserved), and a "fast" 60GB hard drive (I forget the spindle speed, but I do recall paying extra for getting the faster drive). I am running the x86_64-compiled FC5.

Interestingly enough, I have the i386 version of FC5 running in a virtual machine on my desktop (VMWare on an Athlon XP 2700+, 1GB RAM). The performance there is very acceptable, if not faster than FC4. I plan on installing FC4 in a virtual machine as well so that I can compare apples to apples. While the host machine is FC4, VMWare doesn't necessarily emulate an AMD CPU for the virtual machine (somebody correct me on this if I'm wrong).

Maybe this is AMD-specific?
 
Old 03-29-2006, 06:43 PM   #20
BobNutfield
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Hi,

I am having some difficulty with FC5 as well, but performance is not one of them. I also have FC4 on my machine and FC5 as a separate partition. I find FC5 to be slightly faster than FC4 on most applications, so speed isn't an issure. I have found a number of multimedia applications won't work (as they do in FC4 with the same set up.) I am running the x86 64 version on an AMD64 3400+ with 1.5GB memory. So, I don't believe that the processor is what is slowing your performance. In most cases, an element of the xorg.conf file needs tweaking.

Just thought I would comment since AMD seems to be the suspect here, but it runs great on my machine.

Bob
 
Old 03-29-2006, 06:57 PM   #21
darkhatter
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when a program is optimized for pentium 4, that means that it will run great on pentium 4, and crap on anything other. This is why no one optimize there distro. there is nothing you can do other then change distro, or downgrade to version 4 and hope that they change it back in fedora core 6. This is a intel's problem, not red hat's.

guess I'm changing distro again.
 
Old 03-29-2006, 08:13 PM   #22
Lsatenstein
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Memory Usage

You mentioned memory usage, and I would guess that as long as Gnome does not have to page out some data to make room for new data, you are ok.

If the usage is due to firefox, then I would not share your experience. I let someone use my system, and he did not know how to close a window, so, he opened another.

He had about 20 open and minimized.

No perceptable performance problems noted.

Leslie
 
Old 03-29-2006, 08:34 PM   #23
fannymites
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Has anyone tried running top to see if anything in particular is hammering cpu usage? I can't try it myself at the moment.
 
Old 03-29-2006, 09:10 PM   #24
sancho
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So P4-optimized is good on P4 and slow on everything else--but how could the x86_64 version be optimized for P4?
 
Old 03-29-2006, 11:52 PM   #25
augurseer
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i use fedora core 5,, on a athlon 2000+ with gig of ram and a nice radeon 9800 pro 256. 4 harddrives 2 running from add in PCI IDE, and i get blazing hot speed, now i trsut your pc is a beast and is beautiful but i msut say i doubt its a major issue with the core, BUT it might be a mobo issue


i got a asus a7n8x deluxe, plan jane from like 2004.....works like a charm
 
Old 03-30-2006, 03:23 AM   #26
Roxibion
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No experience on Linux before, but...

Hi,

A couple of days ago I installed linux (fc5 with gnome) to my work computer for the first time and instantly noticed the desktop graphics performance to be horrible compared to WinXP. I really would like to use linux for my work, but now it feels like going 5 years back in time... When moving a window, the processor runs at 90%.. So, the question is: Is this just normal for linux desktops? I've never before had Linux on my computer so I don't have a reference.

I've got a P4 2.8GHz with 2GB of mem, ATI Radeon 9600XT, and a plenty of SATA disk space. Programs load fast so the issue is not the hard drive. Now I'm back in Windows writing this and everything (for example switching and moving windows) except loading times are many times faster. Might be something with the graphics driver? I noticed that direct-rendering is off but can't figure out how to enable it.. I tried setting swappiness to a lower value and checked that the hard disk has dma on etc. but they had no effect.
 
Old 03-30-2006, 07:42 AM   #27
ethics
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for the record my desktop FC4 runs fine, but that stanton finley site still takes a while to load (and scrolling is stuttery)
 
Old 03-30-2006, 09:42 AM   #28
augurseer
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um, you are for sure haveing a hardware issue, FC5 is not slower than XP. i have run everything since Fedora Core 3 and honestly FC5 is the fastest yet, we have heard allot about these issue recently and msot of them have come down to hardware issue, and perhaps a not 100% finsihed kernel, but it is a general Linux or Fedora Core thing.
 
Old 03-31-2006, 05:12 AM   #29
marin_r
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To all with performance issues - you really SHOULD try with SELinux disabled during the installation process, some say it makes 60% difference, I don't remember the website but it was a review of FC5, and I found the link from another topic here.
 
Old 03-31-2006, 06:39 AM   #30
fannymites
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Disabling selinux made a slight difference and modifying my xorg.conf file made a huge difference.
Everything is running fast now, but not as fast as suse, dapper or kanotix. In general I'm pretty unimpressed by this release so far. I'm going to have to do a lot more downloading and installing things to get a decent setup then I did with FC4, there isn't even a menu editor that I can find.
I haven't even got internet access yet since I'm going to have to recompile the kernel just to get my modem to work (eciadsl) which I haven't had to do since I used gentoo and that means downloading the kernel source on another distro then copying it over and installing and recompiling on fedora.
At the moment I can't find anything special enough about FC5 to make me think it's worth all the trouble.
I'm glad I used rewritable cd's, I can use em for suse 10.1
 
  


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