JIT Enabled - Performance boost

[rammy]

just the system.img for starters

Ok will upload that in a day or so.

a day or so lol, where are u? in alaska with a 56k dial up lmao

[rammy]

Hi All,

For those that are java aware, JIT is basically a runtime compilation and management framework that is at least from my firmware V1 now fully enabled and running.

To enable on your scroll

Add the following line without any quotes.

dalvik.vm.execution-mode=int:jit

in /system/build.prop

Then reboot.

For the none techies, here's a nice quote from; http://www.taranfx.com/android-internal ... z1IrNW0FVJ

the time when Android 2.1 was getting ready for release, JIT was all in there ready for the showtime. But for some unknown reasons, it was disabled, just a switch away from 2x – 4x times performance boost. But question is why wasn’t it unveiled at that moment. I could be wrong, though was in good-enough shape, it seemed like more of a marketing strategy.

Read more: http://www.taranfx.com/android-internal ... z1IrQcUEDc

As for me; The scroll is now much snappier in some apps such as gallery and various games. In fact I'd go as far as saying it's now very useable above and beyond the usual little hacks and mods.

Fantastic find, nice one

EDIT: on trying this it has made no difference to my scroll wotsover, benchmarks are the same.
and tbh on most devices that get jit enabled its a bit more than adding a single line too the build prop.

[insx]

I can't say I've noticed anything dramatic but I haven't had a proper chance to test it. What is needed is some scientific Angry Birds testing, methinks.

[Mad-Dog]

EDIT: on trying this it has made no difference to my scroll wotsover, benchmarks are the same.
and tbh on most devices that get jit enabled its a bit more than adding a single line too the build prop.

True, but the principal of enabling it in the build.prop and seeing if any change occurs without putting a new version of dalvik or vm on looks promising. I haven't finished off testing yet, but I also need to investigate this too;

http://www.androidtablets.net/forum/tel ... clair.html

Time will tell if the scroll is jit capable just not enabled or whether we need to use the backported modules as above. But I have seen a a marked performance gain with some apps especially so; "Just Pictures" which is quite intensive I/O and CPU.

[rammy]

EDIT: on trying this it has made no difference to my scroll wotsover, benchmarks are the same.
and tbh on most devices that get jit enabled its a bit more than adding a single line too the build prop.

True, but the principal of enabling it in the build.prop and seeing if any change occurs without putting a new version of dalvik or vm on looks promising. I haven't finished off testing yet, but I also need to investigate this too;

http://www.androidtablets.net/forum/tel ... clair.html

Time will tell if the scroll is jit capable just not enabled or whether we need to use the backported modules as above. But I have seen a a marked performance gain with some apps especially so; "Just Pictures" which is quite intensive I/O and CPU.

Might try those files on my scroll later and see wot happens.