Slow hd performance

[Benjamin Schindler]

I recently upgraded to hoary (from the previous release), and suddenly, hd
performance would become incredibly slow:

sudo hdparm -tT /dev/hda
Password:

/dev/hda:
 Timing cached reads: 480 MB in 2.01 seconds = 238.96 MB/sec
 Timing buffered disk reads: 14 MB in 3.08 seconds = 4.54 MB/sec

However, dma is turned on:

sudo hdparm /dev/hda

/dev/hda:
 multcount = 0 (off)
 IO_support = 1 (32-bit)
 unmaskirq = 1 (on)
 using_dma = 1 (on)
 keepsettings = 0 (off)
 readonly = 0 (off)
 readahead = 256 (on)
 geometry = 19386/16/63, sectors = 10005037056, start = 0

my lspci:

0000:00:00.0 Host bridge: VIA Technologies, Inc. VT8363/8365 [KT133/KM133] (rev 02)
0000:00:01.0 PCI bridge: VIA Technologies, Inc. VT8363/8365 [KT133/KM133 AGP]
0000:00:07.0 ISA bridge: VIA Technologies, Inc. VT82C686 [Apollo Super South]
(rev 22)
0000:00:07.1 IDE interface: VIA Technologies, Inc.
VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE (rev 10)
0000:00:07.2 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1
Controller (rev 10)
0000:00:07.3 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1
Controller (rev 10)
0000:00:07.4 Host bridge: VIA Technologies, Inc. VT82C686 [Apollo Super ACPI]
(rev 30)
0000:00:07.5 Multimedia audio controller: VIA Technologies, Inc. VT82C686 AC97
Audio Controller (rev 20)
0000:00:09.0 Network controller: AVM Audiovisuelles MKTG & Computer System GmbH
A1 ISDN [Fritz] (rev 02)
0000:01:00.0 VGA compatible controller: ATI Technologies Inc Rage 128 PF/PRO AGP
4x TMDS

It all seems well and detected, but oddly, it wasn't that slow before. So I
really assume something broke during update

[Matt Zimmerman (mdz)]

Do you see the same results when booting in recovery mode?

[Matt Zimmerman (mdz)]

This bug has been marked as a duplicate of bug 21790.

[Benjamin Schindler (bschindler)]

I'll check as soon as I have access to that machine. It's not my machine, so it will take some time until I check back. But I will ;-)

[Benjamin Schindler (bschindler)]

Could somebody drop me a list of services that get started between single-user
mode up to a running gdm? And also how to manually start/stop them (I'm coming
from the gentoo world - and don't really know how Debian systems manage
services). As soon I'm back, I'll check every service and see which one makes
trouble - if performance in single-user mode is good.

I'll post results to the other bug (not this one)