On Friday 15 April 2005 08:20 am, Ken Bloom kabloom-at-ucdavis.edu |lugod| wrote: > Ryan Castellucci wrote: > > I'm using 4 SATA hard drives on a SYBA SD-SATA-4P SATA card (Silicon > > Image SIL3114A chipset) and I'm only getting 17MB/sec with hdparm -t on > > the drives, and cpu utilization goes up to 100% while the test is going > > on. I'm running this from knoppix 3.8, using 2.6.11. > > > > Anyone got any ideas? Does this SATA chipset just suck, or is something > > set wrong? > > Is DMA enabled? Without DMA, every access has to go through the > processor, which would explain the 100% CPU utilization.
How can I turn DMA on? They show up as SCSI devices, so hdparm -d1 does not work..... -- Ryan Castellucci - http://ryanc.org/ GPG Key: http://ryanc.org/files/publickey.asc _______________________________________________ vox-tech mailing list [email protected] http://lists.lugod.org/mailman/listinfo/vox-tech
