Comment 18 for bug 119730

I've just measured my drive reading time and found out that it's 3.5-4.9MB/s (measured in Midnight Commander by copying a not yet cached file to /dev/null). Then I plugged a USB drive (an HDD box) and tried checking, it's 15-20MB/s, this isn't funny! I have ASUS F3Jp laptop (I have no settings in my BIOS) and now I see this was the reason of of bug #126274 and bug #131094 at least in my case.

dragonfox@kitsuden:~$ sudo hdparm -i /dev/sda

/dev/sda:

 Model=Hitachi HTS541612J9SA00 , FwRev=SBDOC70P, SerialNo= SB3D00E5G0D07A
 Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
 RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4
 BuffType=DualPortCache, BuffSize=7516kB, MaxMultSect=16, MultSect=?16?
 CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=234441648
 IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
 PIO modes: pio0 pio1 pio2 pio3 pio4
 DMA modes: mdma0 mdma1 mdma2
 UDMA modes: udma0 udma1 udma2 udma3 udma4 *udma5
 AdvancedPM=yes: mode=0x80 (128) WriteCache=enabled
 Drive conforms to: ATA/ATAPI-7 T13 1532D revision 1: ATA/ATAPI-2,3,4,5,6,7

 * signifies the current active mode

I don't understand this, since I see udma5 marked as active in hdparm's output. (?)