diff --git a/README.md b/README.md
index 255288d..83f9b07 100644
--- a/README.md
+++ b/README.md
@@ -95,7 +95,7 @@ Start writing back dirty pages (pages that have been modified but not yet writte
 ### vm.dirty_ratio: 20 --> 30
 This tunable is the same as the former, but it is the ceiling for **synchronous** dirty writeback, meaning all I/O will stall until all dirty pages are written out to the disk. We usually won't need to worry about hitting this value, as the background writeback can catch up before we reach 20% memory dirtied. But as a precaution (i.e. heavy file transfers), increase this value to a 30% ceiling to prevent visible system stalls. We are sacrificing available memory in exchange for a reduced change of a brief system stall.
 
-### vm.dirty_expire_centisecs: 300 (3s) --> 1000 (10s)
+### vm.dirty_expire_centisecs: 300 (3s) --> 3000 (30s)
 This is the longest that dirty pages can remain in the system before they are forcefully written out to the disk. By increasing this value, we can allow the dirty background writeback to take its time asynchronously, and avoid unnecessary writebacks that can clog the flusher thread.
 
 ### vm.dirty_writeback_centisecs: 500 (5s) --> 3000 (30s)
diff --git a/ktweak b/ktweak
index 66e740c..667d89f 100644
--- a/ktweak
+++ b/ktweak
@@ -140,7 +140,7 @@ write /proc/sys/kernel/sched_schedstats 0
 # VM
 write /proc/sys/vm/dirty_background_ratio 10
 write /proc/sys/vm/dirty_ratio 30
-write /proc/sys/vm/dirty_expire_centisecs 1000
+write /proc/sys/vm/dirty_expire_centisecs 3000
 write /proc/sys/vm/dirty_writeback_centisecs 3000
 write /proc/sys/vm/page-cluster 0
 write /proc/sys/vm/reap_mem_on_sigkill 1