hard drive speed - bios trick?
Posted: Sat Jun 06, 2009 11:41 am
In a quest for better performance I changed a couple things in the bios and I think it worked. I am running debian "lenny" with e16 window manager on a DT366. The chip is a 1gb that was recently purchased.
Bios changes:
Changed PIO mode from auto to PIO2
Changed cache mode from write back to write through.
sudo hdparm -I /dev/hda1 resulted in:
/dev/hda1:
ATA device, with non-removable media
Model Number: 1024MB ATA Flash Disk
Serial Number: A121187307F000057949
Firmware Revision: ADAA408J
Standards:
Used: ATA/ATAPI-6 T13 1410D revision 3a
Supported: 6 5 4
Configuration:
Logical max current
cylinders 1986 1986
heads 16 16
sectors/track 63 63
--
CHS current addressable sectors: 2001888
LBA user addressable sectors: 2001888
device size with M = 1024*1024: 977 MBytes
device size with M = 1000*1000: 1024 MBytes (1 GB)
Capabilities:
LBA, IORDY(cannot be disabled)
Standby timer values: spec'd by Vendor
R/W multiple sector transfer: Max = 1 Current = 0
Advanced power management level: 254
DMA: mdma0 mdma1 *mdma2
Cycle time: min=120ns recommended=120ns
PIO: pio0 pio1 pio2 pio3 pio4
Cycle time: no flow control=120ns IORDY flow control=120ns
Commands/features:
Enabled Supported:
Security Mode feature set
* Power Management feature set
* Write cache
Look-ahead
* WRITE_BUFFER command
* READ_BUFFER command
* NOP cmd
* DOWNLOAD_MICROCODE
* CFA feature set
* Advanced Power Management feature set
* SET_MAX security extension
Security:
supported
not enabled
not locked
not frozen
not expired: security count
not supported: enhanced erase
4min for SECURITY ERASE UNIT.
Integrity word not set (found 0x0000, expected 0xfea5)
hdparm -Tt /dev/hda1 resulted in
Timing cached reads: 190MB in 2.0 seconds = 94.93 MB/sec
Timing buffered disk reads: 30MB in 3.18 seconds = 9.43 MB/sec
My question is will these toggles work this well on the older 500 mb cards as well?
Bios changes:
Changed PIO mode from auto to PIO2
Changed cache mode from write back to write through.
sudo hdparm -I /dev/hda1 resulted in:
/dev/hda1:
ATA device, with non-removable media
Model Number: 1024MB ATA Flash Disk
Serial Number: A121187307F000057949
Firmware Revision: ADAA408J
Standards:
Used: ATA/ATAPI-6 T13 1410D revision 3a
Supported: 6 5 4
Configuration:
Logical max current
cylinders 1986 1986
heads 16 16
sectors/track 63 63
--
CHS current addressable sectors: 2001888
LBA user addressable sectors: 2001888
device size with M = 1024*1024: 977 MBytes
device size with M = 1000*1000: 1024 MBytes (1 GB)
Capabilities:
LBA, IORDY(cannot be disabled)
Standby timer values: spec'd by Vendor
R/W multiple sector transfer: Max = 1 Current = 0
Advanced power management level: 254
DMA: mdma0 mdma1 *mdma2
Cycle time: min=120ns recommended=120ns
PIO: pio0 pio1 pio2 pio3 pio4
Cycle time: no flow control=120ns IORDY flow control=120ns
Commands/features:
Enabled Supported:
Security Mode feature set
* Power Management feature set
* Write cache
Look-ahead
* WRITE_BUFFER command
* READ_BUFFER command
* NOP cmd
* DOWNLOAD_MICROCODE
* CFA feature set
* Advanced Power Management feature set
* SET_MAX security extension
Security:
supported
not enabled
not locked
not frozen
not expired: security count
not supported: enhanced erase
4min for SECURITY ERASE UNIT.
Integrity word not set (found 0x0000, expected 0xfea5)
hdparm -Tt /dev/hda1 resulted in
Timing cached reads: 190MB in 2.0 seconds = 94.93 MB/sec
Timing buffered disk reads: 30MB in 3.18 seconds = 9.43 MB/sec
My question is will these toggles work this well on the older 500 mb cards as well?