The OnePlus 3 has been criticized lately for suffering similar memory management issues as last year’s Galaxy phones, an issue that deferred many users from purchasing these devices. Luckily, we know now more about the issue with the OnePlus 3, and how to fix it.
First of all, a few things must be made clear: the memory management in the OnePlus 3 is designed to be this aggressive, and it is not a bug as far as we know. I’ve inspected the LMK values as well as the background apps limit and they are not out of the ordinary, even if they don’t get the most out of the OnePlus 3’s 6GB of RAM. Furthermore, Carl Pei mentioned on twitter that “they have a different strategy for RAM management that benefits battery”, and said that parameters can be modified by those who disagree with their decision. Custom ROM makers will thus likely bring their own view of RAM management (it’s worth noting that the Unofficial CM13 we tested did not see significant improvements).
.@LucaDuci we have a different strategy for RAM management that benefits battery. We think this is the best user experience.
— Carl Pei (@getpeid) 17 June 2016
It’s guaranteed that the development community will find ways to optimize the RAM management and make better use of the 6GB of RAM of the OnePlus 3. While we likely didn’t find the most optimal solution, we dabbled into the build.prop and found a line of code with a value you can change to easily improve your RAM management. There are many ways to edit the build.prop, including pulling it through ADB without root or using root apps specifically designed for build.prop editing. I personally used Root Explorer this time around, but all methods should work.
Once you locate your build.prop (/system/build.prop in your root folder), find the line that says ro.sys.fw.bg_apps_limit=20 and change the value at the end for a higher number. I’ve tested both 36 and 42 and both returned similar results. Keep in mind we did not test battery life or extensive performance under this setting, so only play with this if you are willing to experiment and at your own risk. That being said, we found great results:
This tweak almost doubled the amount of apps the OnePlus 3 could hold. The way I tested this was by opening all my apps in the app drawer and cycled through, until I found the point in which the first app (in this case, Android Pay) was kicked out of memory. With the default setting, it only took 12 applications for Android Pay to redraw. With the value set to 42, Android Pay did not redraw until I opened 22 apps. Again, your mileage may vary, but we’ve seen a significant improvement with this tweak.
We have mixed feelings regarding OnePlus’ decision to limit the number of background apps and effectively reduce the multi-tasking potential of the OnePlus 3. It was rather disappointing to find the phone holding as many apps as our 3GB and 4GB RAM devices, but ultimately we believe OnePlus did it for a reason, and this is one of the few companies that encourages users to tweak and customize to their heart’s content. So, while we feel that the RAM of the OnePlus 3 is massively underutilized by default, we know that the XDA community never settles and that it will find an optimal balance to please those wanting more out of their OnePlus 3’s multitasking.
We will continue our review period without the changes to multi-tasking. I encourage users to play around with these and other settings and find nice balances, as well as test battery life and look for any oddities.
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