Same here with Ubuntu 7.10 in a Shuttle SN25P Nforce4 chiipset and Seagate
ST3160023AS 160GB,
CPU AMD Athlon(tm) 64 X2 Dual Core Processor 4200+:
hdparm -tT /dev/sda
/dev/sda:
Timing cached reads: 1954 MB in 2.00 seconds = 977.58 MB/sec
Timing buffered disk reads: 36 MB in 3.51 seconds = 10.27 MB/sec
uname -a
Linux meumeu 2.6.22-14-generic #1 SMP Tue Feb 12 07:42:25 UTC 2008 i686
GNU/Linux
lspci | grep ATA
00:07.0 IDE interface: nVidia Corporation CK804 Serial ATA Controller (rev f3)
00:08.0 IDE interface: nVidia Corporation CK804 Serial ATA Controller (rev f3)
lsmod | grep sata
sata_nv 20612 3
libata 125168 2 sata_nv,ata_generic
hdparm -i /dev/sda
/dev/sda:
Model=ST3160023AS , FwRev=3.18 ,
SerialNo=3JS2LVQH
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs RotSpdTol>.5% }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4
BuffType=unknown, BuffSize=8192kB, MaxMultSect=16, MultSect=?16?
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=268435455
IORDY=on/off, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 udma5
AdvancedPM=no WriteCache=enabled
Drive conforms to: ATA/ATAPI-6 T13 1410D revision 2: ATA/ATAPI-1,2,3,4,5,6
* signifies the current active mode
hdparm -I /dev/sda
/dev/sda:
ATA device, with non-removable media
Model Number: ST3160023AS
Serial Number: 3JS2LVQH
Firmware Revision: 3.18
Standards:
Used: ATA/ATAPI-6 T13 1410D revision 2
Supported: 6 5 4
Configuration:
Logical max current
cylinders 16383 16383
heads 16 16
sectors/track 63 63
--
CHS current addressable sectors: 16514064
LBA user addressable sectors: 268435455
LBA48 user addressable sectors: 312581808
device size with M = 1024*1024: 152627 MBytes
device size with M = 1000*1000: 160041 MBytes (160 GB)
Capabilities:
LBA, IORDY(can be disabled)
Standby timer values: spec'd by Standard
R/W multiple sector transfer: Max = 16 Current = 16
Recommended acoustic management value: 254, current value: 0
DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 udma5 *udma6
Cycle time: min=120ns recommended=120ns
PIO: pio0 pio1 pio2 pio3 pio4
Cycle time: no flow control=240ns IORDY flow control=120ns
Commands/features:
Enabled Supported:
* SMART feature set
Security Mode feature set
* Power Management feature set
* Write cache
* Look-ahead
* Host Protected Area feature set
* WRITE_BUFFER command
* READ_BUFFER command
* DOWNLOAD_MICROCODE
SET_MAX security extension
* 48-bit Address feature set
* Device Configuration Overlay feature set
* Mandatory FLUSH_CACHE
* FLUSH_CACHE_EXT
* SMART error logging
* SMART self-test
* SATA-I signaling speed (1.5Gb/s)
Security:
supported
not enabled
not locked
frozen
not expired: security count
not supported: enhanced erase
Checksum: correct
--
Slow SATA performance
https://bugs.launchpad.net/bugs/119730
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