ART question - Nexus 4 Q&A, Help & Troubleshooting

So ART improves the third party app load times and overall phone performance. But does it improve game performance, does it slow it down or it doesn't affect games at all?
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Snothy said:
So ART improves the third party app load times and overall phone performance. But does it improve game performance, does it slow it down or it doesn't affect games at all?
Sent from my Nexus 4 using xda app-developers app
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You can download this FPS meter app and see if the frames rate increase. My guess is no, its not made for that purpose, it's not a graphic driver, but loading time might improve.

Without ART - 4408 quadrant.
With ART - 6500 quadrant
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In benchmarks the biggest difference is in the processor performance, then should improve a little gaming performance.

Related

GPU under clocking

UI still runs super smooth at 128MHz, so will setting it to this have any major positive effect on battery life? If not playing games I'm guessing u won't really need all that GPU power.
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bump
Well, in technical terms it *should* give you better battery life because it's reducing stress on a main hardware component so it doesn't have to work as hard (the harder it works, the more battery it takes). Same thing with the screen; the lower the brightness, the better the battery.
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What app allow you to change GPU speed?
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eksasol said:
What app allow you to change GPU speed?
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I know faux123's kernel app let's you.
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android88 said:
Well, in technical terms it *should* give you better battery life because it's reducing stress on a main hardware component so it doesn't have to work as hard (the harder it works, the more battery it takes). Same thing with the screen; the lower the brightness, the better the battery.
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Wouldn't it have to work harder for longer because it can't do anything as fast? It isn't like if you set the GPU clock to 487mhz it runs at 487mhz all the time, so ramping up to 487mhz would allow it to finish whatever it is doing faster wouldn't it?
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joshnichols189 said:
Wouldn't it have to work harder for longer because it can't do anything as fast? It isn't like if you set the GPU clock to 487mhz it runs at 487mhz all the time, so ramping up to 487mhz would allow it to finish whatever it is doing faster wouldn't it?
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Then wouldn't it be the same with the CPU? When I answered I was thinking like how a CPU would work. I understand your thinking though.
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Well I would like to add that the 540 sgx can power the 720P in the Galaxy Nexus... That dino is significantly weaker than the Adreno 320 even over clocked. I run 128 only and it works fine for games and even HD videos(YouTube). To confirm I tried Most wanted, dead trigger, temple run, riptide,etc and there weren't any issues(also toggled vSync). And if you use benchmarks like Epic cidel or antutu you'll see the frames are still pretty high.
So I'll say that 128 or even 200mhz is sufficient for this GPU and most purposes. However a good I/o scheduler and governor are still recommended.
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I think another advantage if it runs what you want at a good frame rate is less heat.

Fsync - on or off?

Does turning off fsync make a noticeable real-world performance difference? I know it brings faster app installs and such, but does it also make a difference in everyday usage?
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konradsa said:
Does turning off fsync make a noticeable real-world performance difference? I know it brings faster app installs and such, but does it also make a difference in everyday usage?
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Kind of risky... checkout this thread...
http://forum.xda-developers.com/showthread.php?p=33381928
Rgrds,
Ged.
I am aware of the risk, thanks. So I am wondering if the risk is worth the potential benefit.
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After flashing I always Fsync off (understanding the risk).
I don't do this for a higher Quad score but to have somewhat faster web loading.
(just my 10 Yens worth - ymmv)
konradsa said:
I am aware of the risk, thanks. So I am wondering if the risk is worth the potential benefit.
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Well... I've just tested... disabled Fsync using TricksterMod... and 'Set On Boot'.
Upon reboot, I noticed a very marginal speed benefit... but not enough in my opinion to justify the risk.
----
There are no objective answers here... you'll have to try it for yourself, I'm afraid.
Good luck.
Rgrds,
Ged.
Well, I have tested of course too, but not sure if the speed gains I have observed are real or placebo. Does anybody know if disabling sync requires reboot?
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Do not need to reboot. Just try it, for me it made the horrible io lag the nexus 7 has less noticeable when doing heavy io like downloading apps or flipboard, things like that.
I went from stock kernel to Franco and didn't see a huge improvement until I disabled fsync. Now my experience is much nicer. Faster wake from sleep, less io lag, overall less lag.
konradsa said:
Does turning off fsync make a noticeable real-world performance difference? I know it brings faster app installs and such, but does it also make a difference in everyday usage?
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Give it a try and find out. (If you are one of those folks that OC's and isn't concerned about kernel crashes, make a backup before you begin)
The writes have to happen eventually. (Hopefully before a kernel crash or freeze!)
The point is that it's not something that gives you something for free - it merely moves sluggishness from one point in time to another. I suppose it also means that it (transiently) uses more RAM for caching of dirty pages that have pending writes.
good luck

Slow GPU?

Okay let me start by saying I upgraded from a galaxy s4 (Verizon). So it has the SD 600 and adreno 320. Okay, great. But now I have the SD 800 with adreno 330 GPU and I swear there is so much more lag on the 330. GTA vc is unplayable at max settings (getting about 5-10 fps) where I was getting 20-25 fps on the s4. So my question is why the large performance drop if they have the same resolution display but my g2 supposedly has a faster chip all around?
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Anyone? I need to know if I need to exchange it
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It could be that things need to be optimized for the higher end Krait 400 cores and Adreno 330. Or maybe it is a driver issue. IDK.
Or, has anyone benched the storage performance on this phone? Maybe it suffers a fatal flaw of slow I/O
kake said:
Anyone? I need to know if I need to exchange it
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EniGmA1987 said:
It could be that things need to be optimized for the higher end Krait 400 cores and Adreno 330. Or maybe it is a driver issue. IDK.
Or, has anyone benched the storage performance on this phone? Maybe it suffers a fatal flaw of slow I/O
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I have benched the storage performance and it scores very high. It could very well be an optimization issue, i've played GTA VC on my nexus 10 with no noticeably low framerates... Honestly not sure what the problem is there. Definitely shouldn't be that low.
Do should I exchange it you think?
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Are there truly any games that are out or upcoming that make use of the power in this phone? I'd like to see what it's capable of other than killing benchmarks
LG G2
kake said:
Do should I exchange it you think?
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I am going to try and check some tuning options tonight to see if I can resolve stuttering issues in the games I play. I am wondering if it is simply how LG tuned their governor, since it looks to be using a custom version of OnDemand. The stutter *might* happen when a core turns on or off, or it could be simply how LG tuned their governor for better battery.

Low Bench scores?

First off I know benchmark scores are not that important, real life smoothness is. However when running Antutu Benchmark I consistantly get scores between 25k and 27k, while the chart puts the Note 3 at >35k.
LI am runnig a custom ROM, X Note 5.1 with Faux kernel. Is this kind of score to be expected? I have no real problem with performance but I'm a bit OCD so I would like to know what is causing this.
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Maby it's the kernel you use, I am also on X Note 5.1 and get 35/36k.
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I think I'll quickly flash the stock kernel and try again. Will post back if that makes a difference.
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little improvement
Unconvincing improvement... What other things can cause low benchmark scores? I use the International SM-N9005 Snapdragon 800 version.

Best cpu settings for performance and battery span?

I attached picture of synapse below with my current cpu settings and my question is is it good enough for performance and battery saving and can I do it even better?
I have android l with unleashed kernel
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only you know as we all use our devices differently. there is no such thing as best setting. since we all use our devices differently, best settings would depend on your usage. thats for performance and for battery.
I would recommend bumping up the screen off frequency one notch because with 500mhz, some music playing applications like tune in radio skip occasionally.
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