16.04 - How to change the value of dirty_writeback_centisecs? - Ask Ubuntu


i change value of dirty_writeback_centisecs. after seeing tunables in powertop, there seems problem value 6000 considered bad powertop. echoes value 1500. however, change not persistent.

i tried..

setting vm.dirty_writeback_centisecs=1500 in /etc/sysctl.conf , sys.vm.dirty_writeback_centisecs=1500 neither did work. also, in /etc/sysctl.d/99-sysctl.conf didn't work.

the value still 6000 on restart.

i guess, after changing parameters in /etc/sysctl.conf root privilege , saving , closing file, sudo sysctl -p command effect change. regards


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