Fresh install of FC3 gets poor performance

ssandlin · 03-21-2005, 02:00 PM

I just did a fresh install of FC3. After installing and getting up and running, I noticed that my computer was running painfully slow! I did a hdparm on my disc only to find out that I'm getting a buffered read of only about 23 mb/s! I know this is not an X related slow down, because I got similar results without even running X.

Hardware:
P3 1.2ghz
512 meg ram
2x20Gig WD hard drives 7200RPM
Abit SH6 motherboard

Any ideas? Did the install just make an error in detecting my hardware or something?

thanks
shaun

Technoslave · 03-21-2005, 02:38 PM

Just to check, I ran on FC2 and FC3, the FC2 box was better, almost by 2x the amount...I'd be interested to know too.

WhatsHisName · 03-22-2005, 09:50 AM

ssandlin: Run “hdparm -i /dev/...” and see which UDMA mode the drive is using. It sounds like you are in UDMA4 or possible UDMA3 instead of UDMA5, assuming your drive is ATA/100.

Technoslave · 03-22-2005, 12:31 PM

Hrm, interseting, the FC3 box that I checked is showing that it's running UMDA2.

UDMA modes: udma0 udma1 *udma2 udma3 udma4 udma5 udma6

Before I even look ( bad, I know ), how do you change it to make it use udma5 ( guessing hdparm? ), also how do you know if it can support that, etc?

WhatsHisName · 03-22-2005, 01:05 PM

Take a quick look at the BIOS IDE setup and make sure things didn’t start out messed up.