Re: No HD DMA? (Was: Harddisk slow)

2007-01-31 Thread Igor Sobrado
Hello! I want to say that this thread seems related with this one: http://marc.theaimsgroup.com/?l=openbsd-miscm=117027330031702w=2 Two very different computer architectures (a i386-compatible embedded computer running a 200 MHz Geode processor and a high-end sparc64 computer) but both with a

Re: No HD DMA? (Was: Harddisk slow)

2007-01-31 Thread Igor Sobrado
Well, it seems that the problem related with the V210 system is a consequence of a lack of documentation provided by Sun Microsystems. pciide works fine on other sparc64 systems. As the Geode computers are not designed with I/O performance in mind, it makes sense thinking on the processor as the

Re: No HD DMA? (Was: Harddisk slow)

2007-01-30 Thread Jonathan Gray
On Tue, Jan 30, 2007 at 08:50:53AM +0100, Heinrich Rebehn wrote: attaching the drive to a notebook via a IDE/USB converter easily yields 20 MB/s. So the drive *is* faster. While i could live with 8 MB/s i cannot accept the high CPU usage. It seems to make the installed crypto accelerator

No HD DMA? (Was: Harddisk slow)

2007-01-29 Thread Heinrich Rebehn
Szentivanyi Matyas wrote: Hi Heinrich! I think it's almost the best speed you can achieve from the device. I've got the same type of Soekris with a SAMSUNG HM080HC HDD (which is the slave). This HDD supports perpendicular recording (http://en.wikipedia.org/wiki/Perpendicular_recording).