Update ktweak

ktweak

@@ -85,16 +85,16 @@ write /proc/sys/kernel/sched_schedstats 0
 write /proc/sys/kernel/printk_devkmsg off
 
 # Start non-blocking writeback later
-write /proc/sys/vm/dirty_background_ratio 3
+write /proc/sys/vm/dirty_background_ratio 70
 
 # Start blocking writeback later
-write /proc/sys/vm/dirty_ratio 30
+write /proc/sys/vm/dirty_ratio 90
 
 # Require dirty memory to stay in memory for longer
-write /proc/sys/vm/dirty_expire_centisecs 3000
+write /proc/sys/vm/dirty_expire_centisecs 500
 
 # Run the dirty memory flusher threads less often
-write /proc/sys/vm/dirty_writeback_centisecs 3000
+write /proc/sys/vm/dirty_writeback_centisecs 500
 
 # Disable read-ahead for swap devices
 write /proc/sys/vm/page-cluster 0
@@ -106,7 +106,7 @@ write /proc/sys/vm/stat_interval 10
 write /proc/sys/vm/swappiness 100
 
 # Prioritize page cache over simple file structure nodes
-write /proc/sys/vm/vfs_cache_pressure 200
+write /proc/sys/vm/vfs_cache_pressure 1
 
 # Enable Explicit Congestion Control
 write /proc/sys/net/ipv4/tcp_ecn 1