All results posted below unless otherwise specified were on my previous board, please see my sig for current hardware loadout:
Hardware In order:
Asus A8N32 SLI Deluxe (AMD X2 - 4600)
1 GB ddr 3200
Maxtor 250 GB Sata II (sda1,sda2,sda3)
Maxtor 320 GB Sata II
Maxtor 320 GB Sata II
Western Digital 500 GB Sata II Raid Edition (md0 - raid0)
Western Digital 500 GB Sata II Raid Edition (md0 - raid0)
Open a terminal:
Cache tests
- Code: Select all
sudo hdparm -T /dev/Your_Drive
My results:
/dev/sda1:
Timing cached reads: 2026 MB in 2.00 seconds = 1013.39 MB/sec
/dev/sda2:
Timing cached reads: 1790 MB in 2.00 seconds = 895.72 MB/sec
/dev/sda3:
Timing cached reads: 1914 MB in 2.00 seconds = 957.43 MB/sec
Results same 250 GB drive on newboard (amazing, I bet it is the extra ram):
/dev/sda1:
Timing cached reads: 2954 MB in 2.00 seconds = 1477.54 MB/sec
Overall Performance:
- Code: Select all
sudo hdparm -t /dev/Your_Drive
My results:
/dev/sda1:
Timing buffered disk reads: 174 MB in 3.01 seconds = 57.72 MB/sec
/dev/sda2:
Timing buffered disk reads: 170 MB in 3.01 seconds = 56.43 MB/sec
/dev/sda3:
Timing buffered disk reads: 100 MB in 3.04 seconds = 32.91 MB/sec
New mainboard (no change here):
/dev/sda1:
Timing buffered disk reads: 174 MB in 3.01 seconds = 57.86 MB/sec
sda3 is full slows it way down identical drive to sda2
EDIT: 2 X 500 GB Western Digital Raid Edition drives added (raid 0):
- Code: Select all
Disk /dev/md0: 1000.2 GB, 1000210300928 bytes
2 heads, 4 sectors/track, 244191968 cylinders
Units = cylinders of 8 * 512 = 4096 bytes
Disk identifier: 0x00000000
My results:
/dev/md0:
Timing buffered disk reads: 450 MB in 3.00 seconds = 149.81 MB/sec
New Mainboard (raid 0 cached & overall):
/dev/md0:
Timing cached reads: 2860 MB in 2.00 seconds = 1430.61 MB/sec
/dev/md0:
Timing buffered disk reads: 450 MB in 3.00 seconds = 149.88 MB/sec
My conclusion of the above results the controller on the new mainboard had no speed gain except in cached speed (this will only last as long as memory holds out.
Discovering your maximum or "burst speed" of a hard disk:
- Code: Select all
sudo hdparm --direct -tT /dev/Your_Drive
EDIT: Added Raptor 74.6 GB Sata I 10000 RPM
theemahn@SledgeHammer:~$ sudo hdparm -T /dev/sda1
/dev/sda1:
Timing cached reads: 3114 MB in 2.00 seconds = 1556.83 MB/sec
theemahn@SledgeHammer:~$ sudo hdparm -t /dev/sda1
/dev/sda1:
Timing buffered disk reads: 340 MB in 3.01 seconds = 113.10 MB/sec
theemahn@SledgeHammer:~$ sudo hdparm --direct -tT /dev/sda1
/dev/sda1:
Timing O_DIRECT cached reads: 458 MB in 2.00 seconds = 228.95 MB/sec
Timing O_DIRECT disk reads: 346 MB in 3.00 seconds = 115.28 MB/sec
Funny to see a sata I drive beats the snot out of all of my sata II drives, I would love to have 2 of them raided
![Wink ;)](./images/smilies/icon_e_wink.gif)