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) > 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.
