--- On Fri, 7/11/08, John Levon <[EMAIL PROTECTED]> wrote: From: John Levon <[EMAIL PROTECTED]> Subject: Re: [xen-discuss] Solaris xVM dom0 vs. Solaris base compared with Linux dom0 vs. Linux base To: "HU wenjin" <[EMAIL PROTECTED]> Cc: "Todd Clayton" <[EMAIL PROTECTED]>, "Jeanna Matthews" <[EMAIL PROTECTED]>, "Mark Johnson" <[EMAIL PROTECTED]>, [email protected] Date: Friday, July 11, 2008, 2:38 PM
On Sat, Jul 12, 2008 at 02:29:47AM +0800, HU wenjin wrote: > # eeprom bootpath > bootpath=/[EMAIL PROTECTED],0/[EMAIL PROTECTED],2/[EMAIL PROTECTED]/[EMAIL > PROTECTED],0:a > I wonder how that matters. Could you explain more to us? Thanks. That's IDE not SATA. It makes a huge difference to performance since the Solaris IDE driver has lots of inb()/outb()s which are trapped (you could probably dtrace them?). If you look in /sys/block you can probably check that Linux is using SATA... ***************************************************** If Nevada runs in IDE mode it means the South Bridge (most probably ICH8R) is set in BIOS to IDE Emulation AHCI support has been implemented on Nevada a while ago. Current Nevada builds do detect ICHR9R (ICH8R) BIOS settings and load Solaris AHCI driver. How can Linux run with AHCI driver if South Bridge is set up to IDE Emulation ? Even if it does so sata features appear to be disabled on BIOS level anyway. ***************************************************** regards john _______________________________________________ xen-discuss mailing list [email protected]
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