Hi all!
Well, I didn't solve the problem yet. Still extremely slow controller...
Today I tried the controller+HD on windoze - it performs quite fast as any other HD in the machine.
BTW, the HD is running in UDMA5.
Any hints on getting normal disk-speed on Fedora2 greatly appreciated!
Thanks a lot, Hannes.
Hannes Mayer wrote: > Hi all! > > I tried some options with hdparm - now it's a bit faster, but still > quite slow: > > # hdparm -c1 /dev/hde > > /dev/hde: > setting 32-bit IO_support flag to 1 > IO_support = 1 (32-bit) > > # hdparm -t /dev/hde > > /dev/hde: > Timing buffered disk reads: 12 MB in 3.43 seconds = 3.50 MB/sec > > Is there anything else to do to improve performance ? > > Thanks a lot, > Hannes. > > > Hannes Mayer wrote: > > Hi all! > > > > My fedora HD on an extra ATA controller is very slow. Only about > 2MB/s(!): > > > > # hdparm -t /dev/hde > > > > /dev/hde: > > Timing buffered disk reads: 6 MB in 3.02 seconds = 1.98 MB/sec > > > > I assume the problem is that DMA is disabled ? > > > > # hdparm /dev/hde > > > > /dev/hde: > > multcount = 16 (on) > > IO_support = 0 (default 16-bit) > > unmaskirq = 0 (off) > > using_dma = 0 (off) > > keepsettings = 0 (off) > > readonly = 0 (off) > > readahead = 256 (on) > > geometry = 58246/16/63, sectors = 58711968, start = 0 > > > > But when I try to enable DMA I get this: > > > > # hdparm -d1 /dev/hde > > > > /dev/hde: > > setting using_dma to 1 (on)fedora-list@xxxxxxxxxx > > HDIO_SET_DMA failed: Operation not permitted > > using_dma = 0 (off) > > > > # lspic -v > > [...] > > 02:04.0 Unknown mass storage controller: Integrated Technology Express, > > Inc. IT/ITE8212 Dual channel ATA RAID controller (PCI version seems to > > be IT8212, embedded seems (rev 11) > > Subsystem: Integrated Technology Express, Inc.: Unknown > device 0001 > > Flags: bus master, 66Mhz, medium devsel, latency 0, IRQ 11 > > I/O ports at a800 > > I/O ports at ac00 [size=4] > > I/O ports at b000 [size=8] > > I/O ports at b400 [size=4] > > I/O ports at b800 [size=16] > > Capabilities: [80] Power Management version 2 > > > > On google I read that drivers for the chipset are missing... > > Since I'm recompiling the kernel anyway to get NTFS support, I'd > > appreciate any hints what to include in the kernel. > > > > Thanks a lot, > > Hannes. > > >
