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Boczkowski_D
Apprentice
Joined: 06 Aug 2007
Posts: 160
Location: Poland
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 Posted: Sat Aug 18, 2007 11:12 am Post subject: Hard disk low performance |
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I noticed that when unzipping large archives (e. g. while emerging) the sound disappears for moments as the hard disk couldn't support all task at the time. I tried to check whether udma is set for hard disk but here it looks fine. Where should I find some more info to get hard disk performance improve? Below is the result of hdparm -I /dev/hda:
| Code: |
ATA device, with non-removable media
Model Number: WDC WD1600JB-00GVA0
Serial Number: WD-WCAL93104591
Firmware Revision: 08.02D08
Standards:
Supported: 6 5 4
Likely used: 6
Configuration:
Logical max current
cylinders 16383 65535
heads 16 1
sectors/track 63 63
--
CHS current addressable sectors: 4128705
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, with device specific minimum
R/W multiple sector transfer: Max = 16 Current = 0
Recommended acoustic management value: 128, current value: 254
DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5
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:
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
Automatic Acoustic Management feature set
* 48-bit Address feature set
* Device Configuration Overlay feature set
* Mandatory FLUSH_CACHE
* FLUSH_CACHE_EXT
* SMART error logging
* SMART self-test
* SMART Command Transport (SCT) feature set
* SCT Long Sector Access (AC1)
* SCT LBA Segment Access (AC2)
* SCT Error Recovery Control (AC3)
* SCT Features Control (AC4)
* SCT Data Tables (AC5)
Security:
supported
not enabled
not locked
not frozen
not expired: security count
not supported: enhanced erase
HW reset results:
CBLID- above Vih
Device num = 0 determined by the jumper
Checksum: correct
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didymos
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Joined: 10 Oct 2005
Posts: 4798
Location: California
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| Posted: Sat Aug 18, 2007 12:02 pm Post subject: |
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Just how big are these archives? Also, how much RAM, what CPU, does the sound card share an IRQ with the ide controller, etc.? Does this happen with all emerges, or just some?
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Thomas S. Howard |
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Boczkowski_D
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Joined: 06 Aug 2007
Posts: 160
Location: Poland
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| Posted: Sat Aug 18, 2007 4:11 pm Post subject: |
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| I've got 768MB Ram and Athlon XP 2400+ inside. There was no problem with the sound since I remember when I used Gentoo 2006.0. After changing to 2007.0 it showed up. I think the problem must be in disk usage, cause not only Audacious seems to stop but also firefox and other apps. I am not linux expert so I do not know how to get the info about IRQs in the system. |
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devsk
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Joined: 24 Oct 2003
Posts: 3003
Location: Bay Area, CA
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Boczkowski_D
Apprentice
Joined: 06 Aug 2007
Posts: 160
Location: Poland
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| Posted: Sun Aug 19, 2007 11:50 am Post subject: |
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devsk,
Thanks for the link. I have read quit big part of the thread and get to know some new things. The first thing I've tried was to check the chipset support in kernel. I was suprised when it turned out that I hadn't one - just generic. When turned on VIA82CXXXX disk performance is much better. Buffered speed read increased from 3.17MB/s to 57MB/s  (measured with hdparm -tT /dev/hda) |
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devsk
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Joined: 24 Oct 2003
Posts: 3003
Location: Bay Area, CA
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| Posted: Sun Aug 19, 2007 3:35 pm Post subject: |
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| Boczkowski_D wrote: | devsk,
Thanks for the link. I have read quit big part of the thread and get to know some new things. The first thing I've tried was to check the chipset support in kernel. I was suprised when it turned out that I hadn't one - just generic. When turned on VIA82CXXXX disk performance is much better. Buffered speed read increased from 3.17MB/s to 57MB/s (measured with hdparm -tT /dev/hda) |
you are very welcome! And am glad you got some boost....  |
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Kernel & Hardware
