Well you don't have dma on wd2.
Include the output of pcidump -v and I'll try cook up a diff.
On Sun, Apr 19, 2009 at 11:16:55PM -0700, Syntic wrote:
> Hi there,
>
> I recently installed OpenBSD on one of my servers and I have noticed that I
> am experiencing slow SATA write speeds when using SMB to copy files across
> my network.
>
> I currently have 1xSATA disk & 2xPATA disks in my server.
> When I copy files across my network (GigE) to my PATA disk, I am seeing
> approx 600Mbps, however when I copy to the SATA disk I only see approx
> 125Mbps.
> I also noticed that the CPU utilization (for SMBd) is at about 90% when
> copying to the SATA disk, but only hovers around 10% when copying the PATA
> disk.
> I thought this may have been a driver issue with SATA, therefore causing the
> increased CPU when copying. But I copied some files across to the same SATA
> disk using FTP instead and the CPU stayed quite low and the write speeds
> were approx 600Mbps.
>
> Does anybody have any ideas what may be causing the issues?
>
> I have provided some info from dmesg below which may be of use.
>
> cpu0: Intel(R) Core(TM)2 Duo CPU E7200 @ 2.53GHz ("GenuineIntel" 686-class)
> 2.54 GHz
> bios0 at mainbus0: AT/286+ BIOS, date 09/02/08, BIOS32 rev. 0 @ 0xf1df0,
> SMBIOS rev. 2.5 @ 0xf0000 (50 entries)
> bios0: vendor Phoenix Technologies, LTD version "ASUS P5N-EM HDMI ACPI BIOS
> Revision 0401" date 09/02/2008
> bios0: ASUSTeK Computer INC. P5N-EM HDMI
> spdmem0 at iic0 addr 0x50: 1GB DDR2 SDRAM non-parity PC2-6400CL5
> spdmem1 at iic0 addr 0x52: 1GB DDR2 SDRAM non-parity PC2-6400CL5
> pciide0 at pci0 dev 8 function 0 "NVIDIA MCP73 IDE" rev 0xa1: DMA, channel 0
> configured to compatibility, channel 1 configured to compatibility
> pciide1 at pci0 dev 14 function 0 "NVIDIA MCP73 AHCI" rev 0xa2: DMA
> (unsupported), channel 0 wired to native-PCI, channel 1 wired to native-PCI
> wd0 at pciide0 channel 0 drive 0: <ST3320620A>
> wd0: 16-sector PIO, LBA48, 305245MB, 625142448 sectors
> wd1 at pciide0 channel 0 drive 1: <ST3750640A>
> wd1: 16-sector PIO, LBA48, 715404MB, 1465149168 sectors
> wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 5
> wd1(pciide0:0:1): using PIO mode 4, Ultra-DMA mode 5
> wd2 at pciide1 channel 0 drive 0: <ST31500341AS>
> wd2: 16-sector PIO, LBA48, 1430799MB, 2930277168 sectors
>
> Thanks,
> Kristian
>
> --
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> http://www.nabble.com/Slow-SATA-write-speeds-with-SMB-tp23130953p23130953.html
> Sent from the openbsd user - misc mailing list archive at Nabble.com.
