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darimik
n00b
Joined: 28 Dec 2006
Posts: 10
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 Posted: Sun Mar 25, 2007 3:03 am Post subject: lagging... |
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Hello,
Whenever I am burning a DVD with gnomebaker, or unraring an image, the system is lagging.. I do not think this is a hardware problem, since it works perfectly on windows..
I have Dual Core Intel processor. 1gb of RAM..
any ideas ?
Thank you |
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vipernicus
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Joined: 17 Jan 2005
Posts: 1462
Location: Your College IT Dept.
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| Posted: Sun Mar 25, 2007 3:38 am Post subject: Re: lagging... |
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| darimik wrote: | Hello,
Whenever I am burning a DVD with gnomebaker, or unraring an image, the system is lagging.. I do not think this is a hardware problem, since it works perfectly on windows..
I have Dual Core Intel processor. 1gb of RAM..
any ideas ?
Thank you |
Try building your kernel with Low Latency Desktop mode and CFQ as your default I/O scheduler. Also, make sure that DMA is activated on your hard drives. hdparm /dev/sda
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darimik
n00b
Joined: 28 Dec 2006
Posts: 10
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| Posted: Sun Mar 25, 2007 5:10 am Post subject: |
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Thank you!!!! It worked.. Except for the DMA
| Code: | # hdparm -d1 /dev/sda
/dev/sda:
setting using_dma to 1 (on)
HDIO_SET_DMA failed: Inappropriate ioctl for device |
| Code: | # hdparm -tT /dev/sda
/dev/sda:
Timing cached reads: 2288 MB in 2.00 seconds = 1144.21 MB/sec
Timing buffered disk reads: 134 MB in 3.03 seconds = 44.24 MB/sec |
| Code: | # hdparm -I /dev/sda
/dev/sda:
ATA device, with non-removable media
Model Number: Hitachi HTS721060G9SA00
Serial Number: MPCC14Y3GVAA8E
Firmware Revision: MC3OC10H
Standards:
Used: ATA/ATAPI-7 T13 1532D revision 1
Supported: 7 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: 117210240
LBA48 user addressable sectors: 117210240
device size with M = 1024*1024: 57231 MBytes
device size with M = 1000*1000: 60011 MBytes (60 GB)
Capabilities:
LBA, IORDY(can be disabled)
Queue depth: 32
Standby timer values: spec'd by Vendor, no device specific minimum
R/W multiple sector transfer: Max = 16 Current = 8
Advanced power management level: 128 (0x80)
Recommended acoustic management value: 128, current value: 128
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=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
* NOP cmd
* DOWNLOAD_MICROCODE
* Advanced Power Management feature set
Power-Up In Standby feature set
* SET_FEATURES required to spinup after power up
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
* General Purpose Logging feature set
* WRITE_{DMA|MULTIPLE}_FUA_EXT
* SATA-I signaling speed (1.5Gb/s)
* Native Command Queueing (NCQ)
* Host-initiated interface power management
Non-Zero buffer offsets in DMA Setup FIS
DMA Setup Auto-Activate optimization
Device-initiated interface power management
In-order data delivery
* Software settings preservation
Security:
Master password revision code = 65534
supported
not enabled
not locked
frozen
not expired: security count
not supported: enhanced erase
34min for SECURITY ERASE UNIT.
Checksum: correct
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Any ideas? The system is not lagging anymore.. I just really want to get the most out of it:)
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ppurka
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Joined: 26 Dec 2004
Posts: 3256
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| Posted: Sun Mar 25, 2007 5:58 am Post subject: |
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| Quote: | | Timing buffered disk reads: 134 MB in 3.03 seconds = 44.24 MB/sec |
You have an sata drive,- dma is turned on by default on sata drives (and hdparm does not work on sata drives). If you didn't have dma on, you would be getting ~14MB/s transfer rate instead of above.
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vipernicus
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Joined: 17 Jan 2005
Posts: 1462
Location: Your College IT Dept.
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| Posted: Sun Mar 25, 2007 4:06 pm Post subject: |
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Ok, cool, and ppurka is right, you should be good to go now.
Alot of people believe that the -ck kernel patchset (or -ck based patchsets) can really help with problems like this as well.
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