Can confirm slow burning speeds (since ubuntu 8.04 to 9.10), both on my old pc:
Pentium 4 2gb ram with an IDE plextor drive
and my new:
i7 4gb ram with sata drive SONY OPTIARC AD-5240S.
Both have SWAP disabled.
In more detail, last night tried to burn an iso to a DL-DVD at x8 using nerolinux.
The read buffer was all the time full, but the dvd recorder`s buffer dropped all the time (to 4%).
So it seems it is not a low memory or slow file-system problem
Have also tried brasero and k3b in the past, getting the same results.
Using windows, I have been able to write dvd`s at x24 even on the Pentium 4 machine.
hdparm -i /dev/dvd
/dev/dvd:
HDIO_DRIVE_CMD(identify) failed: Bad address
Can confirm slow burning speeds (since ubuntu 8.04 to 9.10), both on my old pc:
Pentium 4 2gb ram with an IDE plextor drive
and my new:
i7 4gb ram with sata drive SONY OPTIARC AD-5240S.
Both have SWAP disabled.
In more detail, last night tried to burn an iso to a DL-DVD at x8 using nerolinux.
The read buffer was all the time full, but the dvd recorder`s buffer dropped all the time (to 4%).
So it seems it is not a low memory or slow file-system problem
Have also tried brasero and k3b in the past, getting the same results.
Using windows, I have been able to write dvd`s at x24 even on the Pentium 4 machine.
hdparm -i /dev/dvd
/dev/dvd: CMD(identify) failed: Bad address
HDIO_DRIVE_
Model=Optiarc, FwRev=1.02, SerialNo= 120,w/IORDY: 120}, tDMA={min: 120,rec: 120}
Config={ Fixed Removeable DTR<=5Mbs DTR>10Mbs nonMagnetic }
RawCHS=0/0/0, TrkSize=0, SectSize=0, ECCbytes=0
BuffType=unknown, BuffSize=0kB, MaxMultSect=0
(maybe): CurCHS=0/0/0, CurSects=0, LBA=yes, LBAsects=0
IORDY=on/off, tPIO={min:
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 *udma5
AdvancedPM=no
Drive conforms to: Unspecified: ATA/ATAPI-3,4,5,6,7
* signifies the current active mode