Bellow are relevant rows of dmesg output:
---- snip
--------------------------------------------------------------------------
OpenBSD 5.6 (GENERIC.MP) #333: Fri Aug 8 00:20:21 MDT 2014
[email protected]:/usr/src/sys/arch/amd64/compile/GENERIC.MP
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 2.7 @ 0xea450 (94 entries)
bios0: vendor American Megatrends Inc. version "13HX.M038.20110729.SSH"
date 07/29/2011
bios0: SAMSUNG ELECTRONICS CO., LTD. RF511/RF411/RF711
ioapic0 at mainbus0: apid 2 pa 0xfec00000, version 20, 24 pins
pci0 at mainbus0 bus 0
pchb0 at pci0 dev 0 function 0 "Intel Core 2G Host" rev 0x09
pcib0 at pci0 dev 31 function 0 "Intel HM65 LPC" rev 0x04
ahci0 at pci0 dev 31 function 2 "Intel 6 Series AHCI" rev 0x04: msi, AHCI
1.3
scsibus1 at ahci0: 32 targets
sd0 at scsibus1 targ 0 lun 0: <ATA, Hitachi HTS54757, JE4O> SCSI3 0/direct
fixed naa.5000cca63fc2c8ee
sd0: 715404MB, 512 bytes/sector, 1465149168 sectors
cd0 at scsibus1 targ 2 lun 0: <TSSTcorp, CDDVDW SN-208BB, SC00> ATAPI
5/cdrom removable
ichiic0 at pci0 dev 31 function 3 "Intel 6 Series SMBus" rev 0x04: apic 2
int 18
iic0 at ichiic0
spdmem0 at iic0 addr 0x50: 2GB DDR3 SDRAM PC3-10600 SO-DIMM
spdmem1 at iic0 addr 0x52: 4GB DDR3 SDRAM PC3-10600 SO-DIMM
isa0 at pcib0
isadma0 at isa0
vscsi0 at root
scsibus2 at vscsi0: 256 targets
softraid0 at root
scsibus3 at softraid0: 256 targets
root on sd0a (60b75564032edafa.a) swap on sd0b dump on sd0b
---- snip
--------------------------------------------------------------------------
Thanks.
On Thu, Nov 27, 2014 at 5:01 PM, Brad Smith <[email protected]> wrote:
> On 11/27/14 10:57, David Unric wrote:
>
>> Hello,
>>
>> I'd like to figure out what causes very low performance of disk operations
>> on my laptop.
>>
>> I've tested it by unpacking gzipped tar archive (
>> http://ftp.heanet.ie/pub/OpenBSD/5.6/src.tar.gz) about 125 MiB big.
>> On the same machine, not cached, various results by operating system:
>>
>> NetBSD 6.1.5 22 secs
>> Linux 3.14.22 8 secs
>> OpenBSD 5.6 aborted after 10 minutes as still not finished
>>
>> Unpacking was done with `tar xzf src.tar.gz', even tried on uncompressed
>> src.tar but roughly same results.
>>
>> By comparing with more similar NetBSD I've found the SATA disk is attached
>> differently:
>> - in OpenBSD detected as SCSI, `sd' driver used, no sign of Ultra-DMA
>> access
>> - in NetBSD detected as (SATA) IDE, `wd' driver used, UDMA/133
>> activated
>>
>> I've tried mount the partition with softdeps and noatime options, but
>> that's only a slight improvement.
>>
>> Any idea how to fix this issue (like forcing use of wd?) or I'm out of
>> luck
>> and my 750GB Hitachi SATA IDE is unsupported in OpenBSD and no generic
>> driver can be used ?
>>
>
> Reply with the output of dmesg to the list as a start.
>
> --
> This message has been scanned for viruses and
> dangerous content by MailScanner, and is
> believed to be clean.
