Reduce swappiness; retain page cache over anon mem

Signed-off-by: Tyler Nijmeh <tylernij@gmail.com>

README.md

@@ -143,7 +143,7 @@ When we kill a task, clean its memory footprint to free up whatever amount of RA
 ### vm.stat_interval: 1 --> 10
 Update /proc/stat information every 10 seconds instead of every second, reducing jitter on loaded systems.
 
-### vm.swappiness: 100 --> 80
+### vm.swappiness: 100 --> 60
 Swap to ZRAM less often if we don't have to. ZRAM can become expensive due to constant compression and decompression. If we can keep some of the memory uncompressed in regular RAM, we can avoid that overhead.
 
 ### vm.vfs_cache_pressure: 100 --> 200

system/bin/ktweak

@@ -169,7 +169,7 @@ ctl vm.oom_dump_tasks 0
 ctl vm.page-cluster 0
 ctl vm.reap_mem_on_sigkill 1
 ctl vm.stat_interval 10
-ctl vm.swappiness 80
+ctl vm.swappiness 60
 ctl vm.vfs_cache_pressure 200
 
 # Scheduler features