Comment 21 for bug 110636

Thats disappointing as many people I know use ubuntu on older hardware for media servers and currently have over 1TB of PATA disk attached to mine (Lossless audio streaming and photography). While I dont use mine for DVD playback, the performance hit for PATA disk is too severe and have reverted back to Edgy (6.10) until this issue is fixed as I cant be bothered manually maintaining a custom kernel. I must say I am a little surprised at the lack of urgancy being shown given the number of non-sata laptops ubuntu is used on. In my case the performance of my PATA drives on my AMD 1.8 system dropped from 60+MB/sec to barely 5MB/sec and is very obvious when you routinely move large volumes of data around over GigE. Now I am back on Edgy, all is good performance wise and can sustain 30MB/sec using samba again:

Linux jupiter2.home.net 2.6.17-10-server #2 SMP Tue Dec 5 22:29:32 UTC 2006 i686 GNU/Linux
root@jupiter2:~# hdparm -tT /dev/hda

Edgy
====
/dev/hda:
 Timing cached reads: 1220 MB in 2.00 seconds = 608.88 MB/sec
 Timing buffered disk reads: 182 MB in 3.03 seconds = 60.15 MB/sec

Feisty (same disk)
=====
/dev/hda:
 Timing cached reads: 596 MB in 2.00 seconds = 297.85 MB/sec
 Timing buffered disk reads: 16 MB in 3.15 seconds = 5.09 MB/sec