File transfer is slow between SATA disks

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c4.plastique

File transfer is slow between SATA disks

Post by c4.plastique »

Hi,

I have updated from Mint 7 to Mint 8. In Mint 8 the file transfer between SATA disks is about 30MB/s. In Mint 7 (and in WinXP) it is about 70-80MB/s.
I use 1st SATA 500GB (Seagate ST3500320AS) partitioned for Mint and Win XP, 2nd SATA (WD1.5TB WDC WD15EADS-00S2B0) as storage.

hdparm says this:

Code: Select all

sudo hdparm -Tt /dev/sda

/dev/sda:
 Timing cached reads:   698 MB in  2.00 seconds = 348.62 MB/sec
 Timing buffered disk reads:  214 MB in  3.01 seconds =  71.04 MB/sec

$ sudo hdparm -Tt /dev/sdb

/dev/sdb:
 Timing cached reads:   662 MB in  2.00 seconds = 330.91 MB/sec
 Timing buffered disk reads:  218 MB in  3.02 seconds =  72.17 MB/sec
The partitions looks as follows:

Code: Select all

sudo fdisk -l
Disk /dev/sda: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x00006c56

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1        9803    78742566    7  HPFS/NTFS
/dev/sda2            9804       60801   409641435    f  W95 Ext'd (LBA)
/dev/sda5            9804       35335   205085758+   7  HPFS/NTFS
/dev/sda6           35336       60427   201551458+  83  Linux
/dev/sda7           60428       60801     3004123+  82  Linux swap / Solaris

Disk /dev/sdb: 1500.3 GB, 1500301910016 bytes
255 heads, 63 sectors/track, 182401 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x273b13db

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1               1      182401  1465136001    7  HPFS/NTFS
Please do not any one know why there is not full speed for disks? Thanks a lot for all helps.
Last edited by LockBot on Wed Dec 28, 2022 7:16 am, edited 1 time in total.
Reason: Topic automatically closed 6 months after creation. New replies are no longer allowed.
Jay514

Re: File transfer is slow between SATA disks

Post by Jay514 »

This may not be the answer, but I know that you said you updated to mint 8, could it be that your disk partitions are more loaded up with stuff than before?
I know that it can slow read time, usually only slightly, ( but also how often do you defrag the win parts, which may or may not help ) But I think you could run
dpkg --clean from the terminal. I believe that was the command I have used once before, it has been quite some time so don't quote me on that.
Anyway I did not see anything that looked unusual in your part layout, there are a few changes that the upgrade could have done. You could also use synaptic & check that you have no broken packages.Only other thing that I know of to note was the Grub-2 change from Grub 1, I do not know if that would slow you down , but It did give me some issues with boot up & so I uninstalled grub2 & fell back to Grub1.
There is a lot Of I don't knows, because every raid set-up is different , unless every thing (hardware is the same ).
So maybe I gave you some Ideas :idea: , hope you work this out,
Have a Good Day,
Jay514 :roll:
Truthfinder

Re: File transfer is slow between SATA disks

Post by Truthfinder »

I've noticed the same thing. I've mostly used KDE based distos and Linux has always been slower than Windows. Seems even slower since I've started using LM8 KDE 4 instead of KDE 3.
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