Hi, I modified the Phil's LagTest to run in parallel a busy thread that just forces the cpu to run at full speed. With this test on my Nexus One and my G1 the fps is constantly at 60fps. A waste of cpu but just for testing. It's interesting to see, using the profiler, the scheduling of the drawing and the busy thread.
In the test I also removed the String.format because it causes a lot af GC and false the test a bit and I write only the current fps. If someone want to try the modified test on its phone the links are: LagTest.apk: http://docs.google.com/leaf?id=0B7nVA-pXaubcY2MwZWE2MWQtNTU4ZS00ZDI2LTgzMmUtNmRjM2EyZWRhY2Yy&hl=en&browserok=true LagTest.tgz: http://docs.google.com/leaf?id=0B7nVA-pXaubcNWY3ZDE0ZDQtM2ZjZS00NzA0LWFmNzItYmI2YjRhMGUyMDk0&hl=en&browserok=true Bye Michele On Apr 3, 3:40 pm, Michele Scorcia <[email protected]> wrote: > Hi, > did you check the cpu frequency on both phones while the test was > running? > You can from the shell on the phone run the following command that > check the frequency every second: > while true; do cat /sys/devices/system/cpu/cpu0/cpufreq/ > scaling_cur_freq; sleep 1; done > > Maybe they have done some optimization on the 2d graphics part that > makes everything use less cpu and as a side effect the cpu governor > lower the cpu frequency in response of the lower cpu need. Maybe the > cpu and the 2d hardware frequencies are related each others. > > I own a Nexus One and not a Droid but some 3D tests that make an > intensive use of the gpu but not of the cpu run with higher frame > rates if I do something that keep the cpu busy just to keep the cpu > freq high (just as a test). > > On my Nexus One your test gives the following results and the fps is > not steady but really variable: > avg=53 min=35 max=70 > > Bye > Michele > > On Apr 2, 7:29 pm, Phil <[email protected]> wrote: > > > I have observed a marked difference in frame rate of 2-D (Canvas) > > graphics following a 2.1 update on the Motorola Droid. Details are > > here: > > >http://tesujigames.blogspot.com/2010/04/2-d-graphics-slowdown-after-m... > > > Can anyone else corroborate this? I have posted the code and an apk > > in the above blog entry. > > > Also, it would be interesting to know whether there is a difference > > between manual and OTA updates. > > > Thanks! -- 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
