Public bug reported:
Hi.
Please consider me a newbie to linux
my English is also bad
I am using ubuntu 8.04
My system configuration is a bit older
pentium4 2.26GHz with intel 845g chipset motherboard.
I have an IDE disk of 40 GB
~$ lspci
00:00.0 Host bridge: Intel Corporation 82845G/GL[Brookdale-G]/GE/PE DRAM
Controller/Host-Hub Interface (rev 03)
00:02.0 VGA compatible controller: Intel Corporation 82845G/GL[Brookdale-G]/GE
Chipset Integrated Graphics Device (rev 03)
00:1d.0 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M)
USB UHCI Controller #1 (rev 02)
00:1d.1 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M)
USB UHCI Controller #2 (rev 02)
00:1d.2 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M)
USB UHCI Controller #3 (rev 02)
00:1d.7 USB Controller: Intel Corporation 82801DB/DBM (ICH4/ICH4-M) USB2 EHCI
Controller (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 82)
00:1f.0 ISA bridge: Intel Corporation 82801DB/DBL (ICH4/ICH4-L) LPC Interface
Bridge (rev 02)
00:1f.1 IDE interface: Intel Corporation 82801DB (ICH4) IDE Controller (rev 02)
00:1f.3 SMBus: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) SMBus
Controller (rev 02)
00:1f.5 Multimedia audio controller: Intel Corporation 82801DB/DBL/DBM
(ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller (rev 02)
01:05.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
RTL-8139/8139C/8139C+ (rev 10)
In linux all IDE disk listed as 'hda' and SATA as 'sda'
In my case my IDE disk mapped as SATA
$ sudo fdisk -l
[sudo] password for nitish:
Disk /dev/sda: 40.0 GB, 40060403712 bytes
255 heads, 63 sectors/track, 4870 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0xb225b225
Device Boot Start End Blocks Id System
/dev/sda1 * 1 2550 20482843+ c W95 FAT32 (LBA)
/dev/sda2 2551 4009 11719417+ c W95 FAT32 (LBA)
/dev/sda3 4010 4799 6345675 83 Linux
/dev/sda4 4800 4870 570307+ 82 Linux swap / Solaris
but i have no SATA disk and even no SATA port
Here is the performance of my HDD-
~$ sudo hdparm -tT /dev/sda
/dev/sda:
Timing cached reads: 642 MB in 2.00 seconds = 320.61 MB/sec
Timing buffered disk reads: 58 MB in 3.04 seconds = 19.05 MB/sec
Which is not a good answer given by `hdparm`
My hard disk is slow..
also DMA seems to be not working...
$ sudo hdparm /dev/sda
/dev/sda:
IO_support = 0 (default)
16-bit)
HDIO_GET_UNMASKINTR failed: Inappropriate ioctl for device
HDIO_GET_DMA failed: Inappropriate ioctl for device
HDIO_GET_KEEPSETTINGS failed: Inappropriate ioctl for device
readonly = 0 (off)
readahead = 256 (on)
geometry = 4870/255/63, sectors = 78242976, start = 0
I check $lsmod command it shows me that the "libata" modules are loaded
and there is no ide-disk and ide-cd
modules.
I think "libata" controls SATA disk.
Is my IDE disk is controlled by SATA drivers?
or it is the natural speed of my hard disk?
It may be a Bug. I don't know!
** Affects: ubuntu
Importance: Undecided
Status: New
--
Ubuntu Hard disk performance
https://bugs.launchpad.net/bugs/257840
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