You basically have three strategies to tune the Linux Kernel vm.dirty* settings:
1. Decrease the cache (low dirty_ratio)
2. Increase the cache (high dirty_background_ratio)
3. Increase the spread (dirty_background_ratio and high dirty_ratio)
https://lonesysadmin.net/2013/12/22/better-linux-disk-caching-performance-vm-dirty_ratio/
#Linux #Kernel #Tuning #Disk