JIT on 2.1

[Guest zerosignull]

It is all over the NET that installing JiT in 2.1 cause some applications not running as they should and produce instability......

I'm just saying what I read....don't kill the masanger :(

Completely agree with you. Needs to come with "mileage may vary" clause :(

[Guest mnonmo]

Easy JIT for MCR Attached. its an update.zip style file that you install via recovery. Install it like you would install a ROM update but do NOT wipe your phone. Just clear the dalvik cache. Also nandroid before you do this. As I do not run MCR I cannot guarantee this will work (though it works fine for my ROM)

I flash this, found no reboot and FC.

Just clear the dalvik cache is OK. Thank you!

Edited June 2, 2010 by mnonmo

[Guest Epic-Emodude]

I did that but im not noticing any speed ups of any kind, guess ill wait a couple of days to see for sure

1.Download this http://sholes.id.au/download.php?id=4

2.goto the system folder and edit the build.prop, add dalvik.vm.execution-mode=int:jit to the end and save it

3. copy the bin folder in the system folder

4. copy libdvm.so and libnativehelper.so to lib and create and sign the rom

Hi

Just to check:

For step 2 I literally copy and paste that into the bottom of the build prop

For step 3 i take the file from the bin folder and use it to replace the one already in the ROM?

For step 4 they also take the place of 2 existing files?

[Guest gusthy]

Hi

Just to check:

For step 2 I literally copy and paste that into the bottom of the build prop

For step 3 i take the file from the bin folder and use it to replace the one already in the ROM?

For step 4 they also take the place of 2 existing files?

yes, yes and yes.:-) then reboot to recovery, clear dalvik and reboot normal.

[Guest goce.nakov]

JiT on MDC r7 with ADW and Beautiful Widgets = baaaadddd thingy :(

I think my OLD Chinese iPhone bad copy was more quicker then that :(

[Guest gusthy]

JiT on MDC r7 with ADW and Beautiful Widgets = baaaadddd thingy :(

I think my OLD Chinese iPhone bad copy was more quicker then that :(

Yes, usually the problem is with custom home screens and large widgets.

You may try to uninstall them, clear dalvik cache then reinstall.

[Guest ambrozija]

It is all over the NET that installing JiT in 2.1 cause some applications not running as they should and produce instability......

I'm just saying what I read....don't kill the masanger B)

Look what taranfx has to say about this:

I remember 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.

Oh, wow, completely wrong thread :lol: Although, the context is right B)

Edited September 29, 2010 by ambrozija

[Guest the1c3man]

Yes, usually the problem is with custom home screens and large widgets.

You may try to uninstall them, clear dalvik cache then reinstall.

I'm on FLB 1.6a and have just enabled JIT, made a backup of build.prop, added the dalvik line, reboot into clockwork, made a nandroid backup just in case, flashed the jit zip file in here, cleared dalvik cache and rebooted.

Everything is fine ADW, Fancy Widget, Battery Widget, all apps I've tried so far are fine and no reboots yet. Also using swapper2, 32mb swap, swappiness 15.

Next a little overclocking, currently I get 3.6 on linpack :lol:

Edited September 30, 2010 by the1c3man

[Guest wheresmyhead]

Running FLB 1.6b with the swap+overclock kernel @ 691Mhz / 32Mb swap on ext partition.

Enabled JIT with 'a2sd jit' rather than using the build.prop method.

Linpack score 4.6, up from 2.9 before enabling JIT.

Phone feels much more responsive and seems stable so far :lol:

[Guest MaToNeo]

Running FLB 1.6b with the swap+overclock kernel @ 691Mhz / 32Mb swap on ext partition.

Enabled JIT with 'a2sd jit' rather than using the build.prop method.

Linpack score 4.6, up from 2.9 before enabling JIT.

Phone feels much more responsive and seems stable so far :lol:

Something must be wrong, I am running FLB 1.7 OC with swap on 64Mb partition and swappiness 15, I enabled JIT with a2sd jit and Linpack score is allways less than 2.9.

How can I detect if JIT is working?

Anyway, phone is still much more responsive than ever before

[Guest Richard_Arkless]

Something must be wrong, I am running FLB 1.7 OC with swap on 64Mb partition and swappiness 15, I enabled JIT with a2sd jit and Linpack score is allways less than 2.9.

How can I detect if JIT is working?

Anyway, phone is still much more responsive than ever before

Type

My guess is you didnt type su before it to give the terminal root permissions, after that try a2sd jit again, should work now

[Guest MaToNeo]

Type

My guess is you didnt type su before it to give the terminal root permissions, after that try a2sd jit again, should work now

Certainly I did

[Guest komloz]

Something must be wrong, I am running FLB 1.7 OC with swap on 64Mb partition and swappiness 15, I enabled JIT with a2sd jit and Linpack score is allways less than 2.9.

How can I detect if JIT is working?

Anyway, phone is still much more responsive than ever before

Have you installed mcr_jit.zip? (post#24)

Edited October 1, 2010 by komloz

[Guest TaiwanCHT8k]

Something must be wrong, I am running FLB 1.7 OC with swap on 64Mb partition and swappiness 15, I enabled JIT with a2sd jit and Linpack score is allways less than 2.9.

FLB1.7oc, mcr_jit, 64MB swap with swappiness=20

[Guest MaToNeo]

Have you installed mcr_jit.zip? (post#24)

No I have not. I activated (hopefully )built-in JIT in Darktremor A2SD 2.7.5.1

[Guest MaToNeo]

FLB1.7oc, mcr_jit, 64MB swap with swappiness=20

I envy :lol:

[Guest Daz555]

Running 1.6b, 64MB swap, a2sd, and now running a2sd jit as well - getting 4.6 on Linpack and all stable so far.

[Guest MaToNeo]

Running 1.6b, 64MB swap, a2sd, and now running a2sd jit as well - getting 4.6 on Linpack and all stable so far.

Apparently JIT is not working in my Pulse but I have no idea why. My Linpack score is 2.859 :lol:

[Guest HyDeNoW]

Running flbmod_v1.7oc with 128mb swap,a2sd and a2sd jit enabled and i'm getting 4.599 on Linpack :lol: . Although it took and bit for the jit to start having an effect, the first Linpack score after installing jit and rebooting was 2.5, an hour later i was getting scores of over 4. I don't know if it makes a difference but I am using an 8Gb class 6 memory card.

[Guest komloz]

Apparently JIT is not working in my Pulse but I have no idea why. My Linpack score is 2.859 :)

Just like in my case.

I had FLB-Mod v1.7oc. but jit didn't worked with a2sd jit.

Then I installed mcr_jit.zip, and voila! my LINPACK score was 4.6 MFLOPS. (As a bonus, I lost root :( )

After all, I went with a fresh official 2.1 UK install -> CW recovery -> FLB-Mod v1.7oc.

The score was still ~2.9 MFLOPS...

Then I compared the 3 files in mcr_jit.zip with the ones on the phone & saw that

/system/bin/dalvikvm are exactly the same, but

/system/lib/libdvm.so & /system/lib/libnativehelper.so doesn't match!

As a test I copied the 2 non-matching files from mcr_jit.zip to the phone, & after a reboot I got:

4.808 MFLOPS (@691 MHz) ;)

[Guest MaToNeo]

Just like in my case.

I had FLB-Mod v1.7oc. but jit didn't worked with a2sd jit.

Then I installed mcr_jit.zip, and voila! my LINPACK score was 4.6 MFLOPS. (As a bonus, I lost root :( )

After all, I went with a fresh official 2.1 UK install -> CW recovery -> FLB-Mod v1.7oc.

The score was still ~2.9 MFLOPS...

Then I compared the 3 files in mcr_jit.zip with the ones on the phone & saw that

/system/bin/dalvikvm are exactly the same, but

/system/lib/libdvm.so & /system/lib/libnativehelper.so doesn't match!

As a test I copied the 2 non-matching files from mcr_jit.zip to the phone, & after a reboot I got:

4.808 MFLOPS (@691 MHz) :)

Thank you very much kolmoz,

I replaced those 2 files in system/lib and Linpack score is above 4.5 ;)

I had to wipe dalvik cache then for everything work properly.

In return here is su_2.2.2_ef_signed.zip for fix superuser rights wich helps me many times

su_2.2.2_ef_signed.zip

Edited October 3, 2010 by MaToNeo

[Guest Ricardo_Pereira_a1]

I had FLB-Mod v1.7oc and JIT works 100% but i lost root ( FC superuser all time) :)

[Guest MaToNeo]

I had FLB-Mod v1.7oc and JIT works 100% but i lost root ( FC superuser all time) :)

Try to reinstall superuser app from Android Market. Or wipe of dalvik cache maybe can solve FC issue.

[Guest ambrozija]

I had FLB-Mod v1.7oc and JIT works 100% but i lost root ( FC superuser all time) :)

Flashing the last version of superuser helped me...

[Guest MaToNeo]

Flashing the last version of superuser helped me...

Where did you find it (fleshable zip) ?