Date: Wed, 18 Apr 2007 18:03:40 +0100 From: Danny Knaggs <knaggsy2000@googlemail.com> To: freebsd-performance@freebsd.org Cc: joao.barros@gmail.com, sos@freebsd.org Subject: Re: FreeBSD 6.2 on SPARC64/x86 with Promise IDE Controller Message-ID: <46264F6C.2040803@googlemail.com> In-Reply-To: <70e8236f0704090410r5457e32ct3928edea654868b6@mail.gmail.com> References: <46160016.8080504@googlemail.com> <70e8236f0704090410r5457e32ct3928edea654868b6@mail.gmail.com>
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Any news/updates on this? Every thing has gone silent! Joao Barros wrote: > I think nullpt sent you off track when he told you to try > freebsd-performance. > I believe this is an issue for drivers and/or sparc (or maybe current) > > I think I have a TX2 too. I can try it on my Ultra 5 if more testing > is required. > > PS: I'm cc'ing Søren Schmidt, he's the maintainer of most of the ata > drivers > > > On 4/6/07, Danny Knaggs <knaggsy2000@googlemail.com> wrote: >> Hello all! >> >> This is first time I've used a mailing list, so bear with me! >> >> >> I've been asked to submit my findings of the ata driver in FreeBSD 6.2 >> on my sparc64 and x86 box from bsdforums.org. >> >> Link to my thread: http://www.bsdforums.org/forums/showthread.php?t=48682 >> >> >> I've just installed a Promise IDE Controller card (Ultra 133 TX2 - >> PDC20269) in my Sun Ultra 10 and have come across a slight snag. >> >> If I don't put in "hw.ata.ata_dma=0" in the loader options I get DMA >> timeout errors after it has queried the HDD on the Promise controller. >> >> I have found a link which someone else has a similar problem (NetBSD on >> Alpha) which maybe useful: >> http://archive.netbsd.se/?ml=freebsd-alpha&a=2007-02&t=3177803 >> >> Now, after BSD has loaded I can successfully change the DMA mode to >> UDMA66 on the HDD without any problems (get ~30MB/s transfer rate, >> compared to ~15MB/s when using the on-board controller using "dd"). Any >> higher and I get DMA timeout messages. >> >> The HDD works fine when it's attached to the on-board controller. >> >> >> Now, I thought I try the same Promise IDE card in x86 box with FreeBSD >> 6.2 and found something interesting... >> >> The HDD will not operate correctly at UDMA133 - it performs very slowly >> (<15Mb/s). >> >> Forcing the HDD to run at UDMA100 gives me 64Mb/s transfer. Which is >> roughly what I expect. >> >> >> So, it seems something is broken with the ATA driver - Sparc/Alpha >> getting the worse of it! >> >> If anyone has ideas/brainwaves/etc - I'm willing to give it a whirl! >> >> >> Thanks in advance. >> >> >> Dan. >> >> _______________________________________________ >> freebsd-performance@freebsd.org mailing list >> http://lists.freebsd.org/mailman/listinfo/freebsd-performance >> To unsubscribe, send any mail to >> "freebsd-performance-unsubscribe@freebsd.org" >> > >
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