Looking through his list though, most of the settings are less controversial than swappiness.
I do wish people were more rigorous about changing swappiness. Maybe if swappiness=0 was documented as "pageout every byte of /usr/sbin/sshd and /lib/libc.so before you pageout a single byte of java's bloated heap" then people would be less eager to apply it.
I do wish people were more rigorous about changing swappiness. Maybe if swappiness=0 was documented as "pageout every byte of /usr/sbin/sshd and /lib/libc.so before you pageout a single byte of java's bloated heap" then people would be less eager to apply it.