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.
brian.schim...@googlemail.com 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 <chris.smith...@gmail.com> 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" <mmur...@commonsware.com> 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 android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
