[v2] [PATCH 0/2] Populate rootfs asynchronously and early

[Scott James Remnant]

On Tue, 2009-12-08 at 19:07 +0000, Andy Whitcroft wrote:

> These were then tested on three machines, the reference Dell Mini 10v
> (ssd), a Dell 1537, and an amd64 uni-processor system.  The link below
> points to some comparitive graphs for these tests:
> 
I've tested the "test4" kernel on the Mini 10v, with the full boot,
here's now the budget changes compare:

           | Kernel  |
 +---------+---------+
 | vanilla |  4.12s  |
 | test4   |  3.61s  |
 +---------+---------+
           | -0.51s  |


I then added that EDID caching patch I keep going on about:

           | Kernel  |
 +---------+---------+
 | test4   |  3.61s  | 
 | edid    |  3.40s  |
 +---------+---------+
           | -0.21s  |

Both changes together would take 0.7s off the budget.  Have attached
that bootchart.

Much of the remaining time is in those modprobe calls, the majority of
which is the i915 module I believe.  We lose just over a second for
having to sleep for that to turn up, so we can display the splash
screen.

Scott
-- 
Scott James Remnant
scott at ubuntu.com
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