diff --git a/sysctl.d/12309.conf b/sysctl.d/12309.conf
index 352f8a7..b4e0d2d 100644
--- a/sysctl.d/12309.conf
+++ b/sysctl.d/12309.conf
@@ -1,24 +1,21 @@
 # swap usage (default = 60)
 vm.swappiness = 5
+# (default = 100)
+vm.vfs_cache_pressure = 1000
 
 # http://www.linux.org.ru/wiki/en/User:shimon/12309
 # reduce memory size allowed to process (default = 0 )
-vm.overcommit_memory = 2
+vm.overcommit_memory = 1
 # memory allowed to process: total_swap + total_ram * overcommit_ratio / 100 (default = 50 )
-vm.overcommit_ratio = 80
+#vm.overcommit_ratio = 12
 # disk buffer size (default = 0 )
-vm.dirty_bytes = 2097152
+vm.dirty_bytes = 16777216
 # disk buffer size (default = 0 )
-vm.dirty_background_bytes = 2097152
-# (default = 100)
-vm.vfs_cache_pressure = 50
+vm.dirty_background_bytes = 4194304
 # For old kernels <2.6.30 (default = 40)
-#vm.dirty_ratio = 3
+#vm.dirty_ratio = 12
 # For old kernels <2.6.30 (default = 10)
 #vm.dirty_background_ratio = 3
-
-# -- more 12309 tricks --
-# (default = 3000)
-vm.dirty_expire_centisecs =  1000
-# (default = 500)
-vm.dirty_writeback_centisecs = 200
+# https://github.com/zen-kernel/zen-kernel/issues/81#issuecomment-260779930
+vm.dirty_expire_centisecs = 800
+vm.dirty_writeback_centisecs = 500