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my lowest priority app-kill min-free level engages at 64MB.

if I have 800MB of free RAM as reported in OSMonitor, why is the garbage collecting Nova Launcher assets? I can't even.

BTW, I have noticed this behavior in Android for many years, across launchers, across phones. I don't think it ever really got fixed-- remedied perhaps; I think people just gave up fussing. From the user's perspective, nothing should be cleared from RAM unless RAM is needed.

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    It might also be possible that Nova Launcher itself invalidates the view every so often so a redraw is invoked. – chromozonex Jun 8 '15 at 2:20
  • @ChromoZoneX this seems to be dependent on my use of ZRAM frontswap and Kernel Same-Page Merge in the custom kernel I run, two kernel-level features that 'add' about 500MB more RAM to my device by 'more efficiently' using it-- in other words, this behavior appears to be RAM dependent. Does that change anything? Further thought on this matter inspired me to write this question: android.stackexchange.com/questions/113245/… – paIncrease Jun 23 '15 at 18:12
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This is a rather old question but Nova Launcher has an option to stop (most) redraws.

It can be found in Nova Settings > Advanced (at the bottom of the list).

It reads:

Aggressive desktop

Persistence, caching, and preloading to reduce redraws. Comparable to Keep in Memory option of Android 2.x launchers.

It's not a good idea for phones with low RAM (<=1GB), but if you have 800MB free (so, assumingly, your phone has 1.5 or 2GB), it should be just fine.

There should also be (persistent) next to the app name in Android Settings > Developer options > Process stats after changing that option.

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