[cgl_discussion] [Fwd: CELF and fast boot]
cherry at osdl.org
Wed Jun 9 11:32:37 PDT 2004
This should have been posted on cgl_discussion...
> From: John Cherry <cherry at osdl.org>
> To: cgl_specs at osdl.org
> Subject: [cgl_specs] CELF and fast boot
> Date: Wed, 09 Jun 2004 11:26:39 -0700
> In the availability specification, we specify Fast System Startup
> (AVL.10.0). This requirement focuses on fast reboot (kexec style),
> parallel driver initialization, and parallel user initialization.
> The CELF initiative is addressing some other areas of fastboot that we
> should at least be aware of. The CELF spec can be found at
> http://www.celinuxforum.org/publicspecifications.htm and it mainly
> addresses "time to spash" in an embedded environment. The following
> items are mentioned in this spec...
> - calibrate_delay avoidance (possible 250ms savings)
> - no IDE probe (possible 1 sec savings)
> - using busywait-style delays to for parallel IDE
> driver init (possible 250ms savings)
> - kernel execute-in-place (possible 500ms savings)
> While these are different than the CGL focus, they are certainly
> complementary. I have encouraged them to use the fastboot mailing list
> for discussions about fast boot times.
> cgl_specs mailing list
> cgl_specs at lists.osdl.org
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