Hi Tim, I have measured much better numbers on our Zoom platform. From what I remember, it was less than 1 minute for the whole boot, upto Wallpaper
- Akash On Fri, May 14, 2010 at 6:57 PM, Dianne Hackborn <[email protected]> wrote: > Sorry I don't have a boot chart handy. Most of what I look at is the time > to the various log events representing key points during system boot. > > On Fri, May 14, 2010 at 12:15 PM, Tim Bird <[email protected]> wrote: >> >> On 05/14/2010 12:02 PM, Dianne Hackborn wrote: >> > On Wed, May 12, 2010 at 7:40 AM, Chen Yang <[email protected] >> > <mailto:[email protected]>> wrote: >> > >> > Cool! Would you like to share some insights on what makes the >> > preloading and scan so efficient on Nexus One? Fast CPU + fast >> > flash? Which one is more important? Or both? >> > >> > >> > There is nothing so special about the Nexus One in this regard. �It is >> > the newer Qualcomm with actually relatively slow internal flash. >> > >> > An alternative question would be what is making your board so slow. :} >> > �You might want to do some CPU and storage tests on it to see if there >> > is an issue there. >> > >> > And note that my numbers for the myTouch -- which I would consider to be >> > pretty much low-end Android hardware for these things -- are better than >> > your numbers. �Maybe for package scanning that could be explained by you >> > having a lot more .apks pre-installed on your device... �but with you >> > taking over 2x as long to do class preloading, I think you have a >> > problem somewhere. >> >> Dianne, >> >> Thanks very much. This is helpful. >> >> You don't happen to have a bootchart for the myTouch lying around >> do you? If not, no bother. But if you have one and could share it, >> it would be helpful to compare with what I'm getting on an OMAP >> EVM board. >> >> I presume you-all get bootcharts as a standard part of your >> builds and testing, since you built it into 'init'. >> >> For others looking at boot time issues, I put some >> instructions for using it on Android, as well as a >> bootchart from the ADP1, here: >> http://elinux.org/Using_Bootchart_on_Android >> >> IMHO, it would be useful, if people have measurements from other >> devices or platforms, if we could collect more and post them there. >> >> Thanks, >> -- Tim >> >> P.S. Lest I hear cries of hypocrisy, I'll try to get one >> for an OMAP EVM running eclair up on the site Real Soon Now... :-) >> >> >> ============================= >> Tim Bird >> Architecture Group Chair, CE Linux Forum >> Senior Staff Engineer, Sony Network Entertainment >> ============================= >> > > > > -- > Dianne Hackborn > Android framework engineer > [email protected] > > Note: please don't send private questions to me, as I don't have time to > provide private support, and so won't reply to such e-mails. All such > questions should be posted on public forums, where I and others can see and > answer them. > > -- > unsubscribe: [email protected] > website: http://groups.google.com/group/android-porting > -- unsubscribe: [email protected] website: http://groups.google.com/group/android-porting
