On Oct 22 16:28:49, Stefan Klein wrote:

quoted text
> I have got an interesting problem here. When I use a CF card on Geode LX-800

> board, the performance is extremely low (about 1MB/s for reading). I suppose

> it is not a hardware problem: Under windows, the performance of read/writes on

> the CF is fine.

>

> This is what I get in dmesg:

>

> pciide0 at pci0 dev 15 function 2 "AMD CS5536 IDE" rev 0x01: DMA, channel 0

> wired to compatibility, channel 1 wired to compatibility

>

> wd0 at pciide0 channel 0 drive 0:

> wd0: 1-sector PIO, LBA, 1983MB, 4062240 sectors

> wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 2

> pciide0: channel 1 ignored (disabled)

>

> (Using a more or less standard 4.1 - kernel)

>

> so I guess the kernel is recognizing the controller OK.

> If I use a "standard" harddisk under OpenBSD, the performance is fine, too.

> (I do not have the according dmesg for this, but I can get one if that helps)

>

> The same behaviour occurs with other boards (for example  the new ALIX board

> from pcengines).

>

> Any ideas?

I am running an ALIX/4.1 with 2G CF card as its sole storage,

and mounting with noatime and softupdates helped the speed

a lot.
	Jan