Thanks for your reply, Dianne. If I run the Android browser as my only application in Gingerbread on a quad-core smartphone, and the page to be loaded is stored locally in memory (no network delay etc, in this case, the browser is single-threaded only as no network connection?), I wouldn't see any performance scaling (or worse, as the OS may move the threads to another core less busy in a circle) from a single-core smartphone, everything else being the same?
On 31 Aug 2011, at 21:00, Dianne Hackborn wrote: > Gingerbread isn't designed for multi-core CPUs. The browser doesn't try to > create threads to use multiple CPUs, it creates threads to have multiple > network connections. > > Besides networking, browsers are pretty intrinsically single-threaded anyway. > The complicated stuff all needs to run in one thread: DOM rendering, > JavaScript, etc. > > On Wed, Aug 31, 2011 at 12:08 PM, Jack Harvard <[email protected]> wrote: > I want to understand how many threads Gingerbread generates in order to > understand how the browser performance scale with multicores? For example, if > "a few " means 2, that means 4 cores wouldn't scale the browser performance > by anywhere close to 4 times. I understand that Gingerbread doesn't > officially support SMP, sometimes browser does crash on multicore platforms, > it's not a problem for me though. > > On 31 Aug 2011, at 18:57, Dianne Hackborn wrote: > > > Oh and Gingerbread wasn't designed to run on anything but single CPU > > systems, so that's irrelevant to the question of the base platform. Of > > course people shipping Android modify it in various ways, and the browser > > is often one of the things they modify. > > > > On Wed, Aug 31, 2011 at 10:57 AM, Dianne Hackborn <[email protected]> > > wrote: > > A few. Why? :) > > > > > > On Wed, Aug 31, 2011 at 10:40 AM, Jack Harvard <[email protected]> > > wrote: > > Wondering how many threads does android browser generate? Suppose it's > > Gingerbread running on a dual-core or quad-core ARM processor. > > > > -- > > You received this message because you are subscribed to the Google > > Groups "Android Developers" group. > > To post to this group, send email to [email protected] > > To unsubscribe from this group, send email to > > [email protected] > > For more options, visit this group at > > http://groups.google.com/group/android-developers?hl=en > > > > > > > > -- > > 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. > > > > > > > > > > -- > > 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. > > > > > > -- > > You received this message because you are subscribed to the Google > > Groups "Android Developers" group. > > To post to this group, send email to [email protected] > > To unsubscribe from this group, send email to > > [email protected] > > For more options, visit this group at > > http://groups.google.com/group/android-developers?hl=en > > -- > You received this message because you are subscribed to the Google > Groups "Android Developers" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en > > > > -- > 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. > > > -- > You received this message because you are subscribed to the Google > Groups "Android Developers" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
