Re: [osol-discuss] Poor disk performance (nForce4 board)

I grabbed OpenSolaris 2008.05 to see if disk performance had gotten any better since my last try, which was Solaris 10 (8/07 IIRC). It had, but still not good enough. Here's a follow-up to this problem - on a different computer altogether. In both cases, Opensolaris 2008.05 was used. The

[osol-discuss] Poor disk performance (nForce4 board)

I grabbed OpenSolaris 2008.05 to see if disk performance had gotten any better since my last try, which was Solaris 10 (8/07 IIRC). It had, but still not good enough. I have four disks, three IDE and one SATA. My highly scientific benchmark was: dd if=/dev/... of=/dev/null bs=128k count=4000

Re: [osol-discuss] Poor disk performance (nForce4 board)

Thomas Backman [EMAIL PROTECTED] wrote: I grabbed OpenSolaris 2008.05 to see if disk performance had gotten any better since my last try, which was Solaris 10 (8/07 IIRC). It had, but still not good enough. I have four disks, three IDE and one SATA. My highly scientific benchmark was: dd

Re: [osol-discuss] Poor disk performance (nForce4 board)

I grabbed OpenSolaris 2008.05 to see if disk performance had gotten any better since my last try, which was Solaris 10 (8/07 IIRC). It had, but still not good enough. I have four disks, three IDE and one SATA. My highly scientific benchmark was: dd if=/dev/... of=/dev/null bs=128k

Re: [osol-discuss] Poor disk performance (nForce4 board)

2008/5/23 Joerg Schilling [EMAIL PROTECTED]: Thomas Backman [EMAIL PROTECTED] wrote: I grabbed OpenSolaris 2008.05 to see if disk performance had gotten any better since my last try, which was Solaris 10 (8/07 IIRC). It had, but still not good enough. I have four disks, three IDE and one

Re: [osol-discuss] Poor disk performance (nForce4 board)

Thanks for the quick answers! Here's a lot more data: 2GB RAM. Now, most of this data is pointless - see the opensolaris dmesg to see what I mean... --- Linux --- exscape ~ # time dd if=/dev/sda of=/dev/null bs=1M count=4096 4096+0 records in 4096+0 records out 4294967296

Re: [osol-discuss] Poor disk performance (nForce4 board)

Thanks for the quick answers! Here's a lot more data: 2GB RAM. Ok; neither ata nor nv_sata are able to access physical memory 4GB (AFAIR), but with 2GB this isn't an issue (For a system with = 4GB, a lot of extra copying of dta might be happening ...) May 23 10:51:10 opensolaris

Re: [osol-discuss] Poor disk performance (nForce4 board)

I'm missing the ...DMA mode messages for the P-ATA disks in the /var/adm/messages file. It should include some messages about the data transfer mode used with the P-ATA disk, something like MultiwordDMA mode X selected ltraDMA mode Y selected ... Yup, those are in there; UDMA 5 on