Copy files from partition to partition too slow, SATA hard disk.What should I do£¿

SlackerLX · 10-28-2005, 12:16 PM

Tested also on parallel Debian-Etch:

Code:

slackerlx@debian:~$ su
Password:
debian:/home/slackerlx# hdparm -tT /dev/hda

/dev/hda:
 Timing cached reads:   1792 MB in  2.00 seconds = 894.79 MB/sec
 Timing buffered disk reads:  158 MB in  3.04 seconds =  51.98 MB/sec
debian:/home/slackerlx# hdparm -tT /dev/sda

/dev/sda:
 Timing cached reads:   1872 MB in  2.00 seconds = 935.67 MB/sec
 Timing buffered disk reads:  166 MB in  3.03 seconds =  54.83 MB/sec
debian:/home/slackerlx#

broch · 10-28-2005, 12:38 PM

that is prety slow for SATA. The fact that you have similar problem does not mean that this is "normal"

curent SATA status under linux:
http://linux.yyz.us/sata/sata-status.html
So there are hardware problems (compatibility: controlers, disk design) and software (kernel, libata and so on)
http://linux.yyz.us/sata/software-status.html

I suggested either hardware problems or software. Here are software related problems with sata:

http://www.thinkwiki.org/wiki/Proble...SATA_and_Linux
http://www.linuxquestions.org/questions/history/290393
http://users.dslextreme.com/~craig.l...tes/disks.html
http://linux.derkeiler.com/Mailing-L...3-07/2807.html

SlackerLX · 10-28-2005, 12:44 PM

[QUOTE]Originally posted by broch
[B]that is prety slow for SATA. The fact that you have similar problem does not mean that this is "normal"

I believe that you're incorrect. Again it totally depends on drive and SATA Controller. My controller Silicon Image is on-board and is not even supported. I can't test this in Windows though, I've never had one installed since windows 95

SlackerLX · 10-28-2005, 12:59 PM

New test on IBM Laptop with IBM Travelstar 5K100 80GB 2.5" SATA Notebook/Laptop Hard Drive-HTS541080G9SA00, 5400 RPM, 8MB Cache with SuSE 9.3 Pro installed:

Code:

suse:/home/slackerlx # hdparm -tT /dev/sda

/dev/sda:
  Timing cached reads:    1960 MB in    2.00 seconds = 978.68 MB/sec
  Timing buffered disk reads:    78 MB in    3.04 seconds = 25.64 MB/sec
suse: /home/slackerlx #

If you would like to suggest that my IBM is also screwed I'd probably laugh very long and loud

broch · 10-28-2005, 01:26 PM

did you read this one or that is beyon your comprehension?
http://www.thinkwiki.org/wiki/Proble...SATA_and_Linux

comparing 5400 rpm SATA with 7200 rpm SATA (first post) really makes sense. Anyway your 5400 is still faster than his 7200 rpm.

Quote:

I believe that you're incorrect. Again it totally depends on drive and SATA Controller. My controller Silicon Image is on-board and is not even supported.

So this is compatibility problem. Or you don't understand what you have just written?

These results are really slow for SATA, and this is a problem with your hardware/software config.

Ryanlee · 10-31-2005, 07:30 AM

give up...........

can't solve this problem......

sigh.