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Quotes of the weekQuotes of the weekPosted Mar 31, 2011 18:00 UTC (Thu) by anselm (subscriber, #2796)In reply to: Quotes of the week by jengelh Parent article: Quotes of the week
I suppose the operative words in the quoted paragraph are »embedded Linux boot«. That image may »hardly be usable for any serious task« but it may support software that runs a digital camera or basic phone just fine. (If that »application« takes another 300 ms to launch we can probably live with that.) One probably wouldn't expect such an image to contain a copy of Eclipse.
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Quotes of the week Posted Apr 2, 2011 13:33 UTC (Sat) by dmk (subscriber, #50141) [Link]
> One probably wouldn't expect such an image to contain a copy of Eclipse.
lol Eclipse :)
Minimal system boot time: 300 ms Posted Apr 3, 2011 0:54 UTC (Sun) by giraffedata (subscriber, #1954) [Link] I agree that this system is hardly functional -- the only function it has is the ability to extend the system to add some real function, like taking pictures or making phone calls. But I think it is still a highly useful benchmark, because it covers the common part of all these possible systems, and a part which has traditionally taken much longer. The benchmark also omits the other end -- getting the system up to the boot loader. So it's just a measurement of kernel start time, and the only function expected of a kernel is to run applications. It would be nice if they would follow it up with an example of a realistic application and tell how long it takes from e.g. power button to view finder active. Because maybe the kernel boot time isn't all that significant after all.
Minimal system boot time: 300 ms Posted Apr 3, 2011 1:25 UTC (Sun) by jengelh (subscriber, #33263) [Link]
>Because maybe the kernel boot time isn't all that significant after all.
Indeed not, as has been observed before - https://lwn.net/Articles/299483/
Minimal system boot time: 300 ms Posted Apr 3, 2011 16:38 UTC (Sun) by mgedmin (subscriber, #34497) [Link]
The website mentioned in the email (http://www.makelinux.com/emb/fastboot/omap) mentions the time spent before the bootloader:
> Boot analysis
I agree that it would be interesting to see timings for a sample application as well.
I seem to recall one example of embedded Linux starting a GUI application (Qt over framebuffer IIRC) driving a webcam in about 1 second (again, IIRC) from system reset.
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