Kano, why would AHCI mode be needed? I'm in the understanding that it is only for the case where a native driver does not exist, and provides similar speed as a native driver. At least on my mobo it has the huge con that enabling it causes a ~10 second delay to bios boot, and since there's a native SATA driver, I've kept AHCI off.
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Originally posted by Jeff8086 View PostI'm hoping the AMD drivers get better, but when your friends come over they aren't going to care about ideological crap... they will just see a bad product.
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If you aren't going to play any games whatsoever then just stick with integrated intel chip(except for the GMA 500 as noted above), or go with NVidia.
But yeah, will very likely change (with Gallium3D which'll give not only OpenGL but also VDPAU) but not in very near future.
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Originally posted by curaga View PostKano, why would AHCI mode be needed? I'm in the understanding that it is only for the case where a native driver does not exist, and provides similar speed as a native driver. At least on my mobo it has the huge con that enabling it causes a ~10 second delay to bios boot, and since there's a native SATA driver, I've kept AHCI off.
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My front end is probably going to start off as an Asrock ION machine.
It'll decode anything and I have no HD content yet
question for deanjo: I've just got that Biostar board I was talking about and I have three SATA drives attahced and an IDE DVD-RW.
It has many "modes", including Native IDE and AHCI.
I was always under the impression that AHCI is the best to use and highest performance.
(Although SATA channels 1-4 disappear from the BIOS using AHCI and two of the HDDs appear as IDE drives, the drive on SATA5 appears as a SATA drive)
Using linux soft RAID5 on three 500GB WD SATA drives, bonnie++ numbers were all <=60MB/S.
I know RAID5 is not a performance option but I like the balance it gives you. However, it seems a bit slow.
Anyway, completely OT but it's my T to go O from.
J.
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Originally posted by RoboJ1M View PostMy front end is probably going to start off as an Asrock ION machine.
It'll decode anything and I have no HD content yet
question for deanjo: I've just got that Biostar board I was talking about and I have three SATA drives attahced and an IDE DVD-RW.
It has many "modes", including Native IDE and AHCI.
I was always under the impression that AHCI is the best to use and highest performance.
(Although SATA channels 1-4 disappear from the BIOS using AHCI and two of the HDDs appear as IDE drives, the drive on SATA5 appears as a SATA drive)
Using linux soft RAID5 on three 500GB WD SATA drives, bonnie++ numbers were all <=60MB/S.
I know RAID5 is not a performance option but I like the balance it gives you. However, it seems a bit slow.
Anyway, completely OT but it's my T to go O from.
J.
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Hi,
Apparently there is lots and lots of things to tune in RAID5.
getra and setra, changes the read ahead.
I (think) I'm looking at ~100MB/s with the read ahead bumped from 256 to 16384 (not yet sure whether that's KiB or b or MiB yet, it was just a brief stab before I went to bed)
Apparently this can have a detrimental affect on random read. Although iozone doesn't appear to think so. Not sure yet, lots of numbers hurt my eyes.
Anyway, task one is to learn iozone and how to digest it's info barf.
Regards,
J1M.
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Originally posted by BlackStar View Post<=60MB/s looks about right for your drives on soft RAID5 (expect a 10-20MB/s improvement on JBOD at the best case).
What are you going to do on a HTPC that requires >60MB/s anyway?
And that's going to be running several paravirtualized servers over XenServer. :P
J1M.
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