Dalvik JIT working on Desire with Sense UI!

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NEW VERSION! Less hackish!

Commenting out some code that limits how much heap-memory an application can allocate + adding one dummy JNI function , JIT-enabled Dalvik is now working very stable (i haven't had one crash so far for some hours).
EDIT: this version is not just a hack based on commenting out some code. The only code that needed hacking was dalvik/vm/native/dalvik_system_VMRuntime.c and dalvik/vm/alloc/HeapSource.c . The other fix is just a change you need to make in /system/build.prop - This is important

Instructions:
0. BACKUP ALL THE FILES THAT YOU ARE OVERWRITING HERE !!!
1. Copy libdvm.so and libnativehelper.so to /system/lib/
2. Copy dalvikvm to /system/bin
3. chmod 0755 /system/bin/dalvikvm
4. chmod 0644 /system/lib/libnativehelper.so /system/lib/libdvm.so
5. Optionally clear dalvik-cache (?) I didn't have to though

6. Append the line "dalvik.vm.execution-mode=int:jit" to /system/build.prop
7. Change line in /system/build.prop: dalvik.vm.heapsize=24m to dalvik.vm.heapsize=38m (38 megs should be more than sufficient so far. The problem is, as someone also pointed out in this thread, that JIT increases the memory usage

Remember you have to mount the /system partition in recovery mode.

1 gr0gmint/Copenhagen 8.774 HTC Desire 998.4MHz htc_wwe/htc_bravo/bravo/bravo:2.1-update1/ERE27/155070:user/release-keys


Gratz on linpack record with that

Originally Posted by biebi

1 gr0gmint/Copenhagen 8.774 HTC Desire 998.4MHz htc_wwe/htc_bravo/bravo/bravo:2.1-update1/ERE27/155070:user/release-keys


Gratz on linpack record with that

Thaaank you

Wouldn't mind giving this a spin, but how does one remove it if it doesn't work out? Assume you can just remove the files and the line in build.prop?

not working for me

Originally Posted by Loccy

Wouldn't mind giving this a spin, but how does one remove it if it doesn't work out? Assume you can just remove the files and the line in build.prop?

Backup the files beforehand. I'll edit OP

Originally Posted by gr0gmint

Backup the files beforehand. I'll edit OP

I figured that out and went ahead anyway Getting 9.3-ish on Linpack. How're you getting 10+?

Is it compatible with the cm506 for desire?

Originally Posted by Loccy

I figured that out and went ahead anyway Getting 9.3-ish on Linpack. How're you getting 10+?

hmm, good question, it might be because i'm using a BFS kernel

Originally Posted by DocRambone

Is it compatible with the cm506 for desire?

It should theoretically work with any rom.