I had this problem with Ubuntu 8.10, two things : - check that you're using the good environment x86 / 64 - use preferly the SUN JDK 1.6 to compile Android development (you can use the JDK 1.5 to work with sources).
Today I'm using a bipro intel, 4Gb, Ubuntu 9.10 and SUN JDK 1.5.0.20 and performance are really good. BR On Dec 7, 5:49 pm, Michael MacDonald <[email protected]> wrote: > I've had bad Linux/hardware interactions with the emulator from audio. > The emulator AFAIK uses the SDL audio libraries. Try starting the > emulator from the command line with the -noaudio flag and see if that > works better. > > [email protected] wrote: > > To answer your questions: > > I was using Ubuntu two different hardware setups, both had 2 GB Ram > > installed, about 75% of which was free. See below for an output of > > "free". > > > As far as I can tell (that is, as far as "java -version" tells me), > > I'm using Sun's Java: > > > java version "1.6.0_16" > > Java(TM) SE Runtime Environment (build 1.6.0_16-b01) > > Java HotSpot(TM) Client VM (build 14.2-b01, mixed mode, sharing) > > > But I think this wouldn't matter anyway, because the Android Emulator > > is based on Quemu which is native software, not Java. Or am I missing > > something? > > > To make things even stranger than they were before, I removed my hard > > disk and attached it to yet another computer, which normally should > > perform about equally to the two systems I was using before, despite > > it only has 1 GB of Ram. I'm booting my Ubuntu from the hard disk > > attached via USB, and here everything runs smoothly, including the > > emulator. Even with method tracing turned on, performance is ok and > > very comparable to what I was used to have on XP. > > > So the conclusion would be, that my first hardware setup can't be the > > bottleneck, since it runs the emulator fine under XP, and that my > > Ubuntu configuration can't be the bottleneck, since it runs the > > emulator fine on the third hardware configuration. Too bad that the > > first computer is broken now, and the third one doesn't belong to me, > > and the second one performs badly under ubuntu and currently has no > > XP. > > > Just for completeness, here's the output of "free", made on that nice > > third computer which runs it just fine: > > total used free shared buffers > > cached > > Mem: 1017192 971392 45800 0 18844 > > 310512 > > -/+ buffers/cache: 642036 375156 > > Swap: 2441840 218892 2222948 > > > On 5 Dez., 17:23, theSmith <[email protected]> wrote: > > >> My emulators behave just fine under 9.10 Karmic Kola, unless I start > >> method tracing, then it really slows down. > >> Are you using the java sun jdk and not the open jdk? > > >> On Dec 5, 11:12 am, "Mark Murphy" <[email protected]> wrote: > > >>>> I'm using a dual boot configuration with Windows XP and Ubuntu 9.04. > >>>> On XP, the emualtor is somehow slower than a real G1 device, but it's > >>>> completely ok. > > >>>> But on Ubuntu, the emulator is unusable slow. Note that other programs > >>>> run just fine under my ubuntu. I have no exact measurements, but I > >>>> think the emulator about 10 times slower than on Windows. Installing a > >>>> small app takes more than 2 minutes, starting an app sometimes takes > >>>> over 2 minutes, returning to the home screen takes up to 40 seconds, > >>>> and there is not a single click I can do that takes less than 2 > >>>> seconds to trigger some kind of reaction. I get around 2 fps at most, > >>>> no matter what I do. > > >>> I am writing this email on a notebook, dual-boot Vista and Ubuntu 9.04, > >>> and if anything, the Ubuntu emulator is a bit faster. > > >>>> Also, I noticed that under heavy usage of the emulator, the usage of > >>>> my real CPU never went above 30%. > > >>>> Is there any explanation for this slowness on Ubuntu? Or even a way to > >>>> further investigate where the bottleneck might be? > > >>> How much RAM do you have? What is the output of running 'free' in Ubuntu > >>> from a shell? > > >>> -- > >>> Mark Murphy (a Commons Guy)http://commonsware.com > >>> Android App Developer Books:http://commonsware.com/books.html > > -- 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
