What's interesting about your 750ms is that it meets the requirement I saw
at a FOSDEM talk that the boot time needed for an auto computer was 800ms,
so that users could see blinky lights in less than one second. You're
showing very impressive performance here for an x86.
You've also raised the
This looks like it was an interesting task. I had some questions and
comments from previous fast-POST exercises:
On Mon, Dec 21, 2009 at 12:44 AM, Kevin O'Connor ke...@koconnor.net wrote:
* cpu appears to start running around 350ms
Do you have a scope at all?. The only way to know this number
On Mon, Dec 21, 2009 at 10:29:54AM -0500, Tom Sylla wrote:
This looks like it was an interesting task. I had some questions and
comments from previous fast-POST exercises:
On Mon, Dec 21, 2009 at 12:44 AM, Kevin O'Connor ke...@koconnor.net wrote:
* cpu appears to start running around 350ms
It's a vt8237r thing - basically I need to add:
It is PSON gating. RTC Power Well registers must be avoided to access until the
gating is complete. SMBus happen to be power well register ;)
Kevin, I think we need some fix with the timeout maybe? Definetely for the AT
PSU. They need to
I've completed another round of improvements and timings on my epia-cn
machine. From power-on to grub serial menu is now 750ms. For
comparison, the same equipment with the factory bios takes 9.9s. (To
be fair though, I needed to remove the 2.5s boot menu delay in SeaBIOS
to get to 750ms.)
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