RHEL6.4(kernel 2.6.32-303)以降、vm.swappiness=0 にすると OOM Killer が発動しやすくなるので、1 にしましょうという話を見かけるのでメモ。詳しくは後日調べる予定。 Deploying Oracle Database 12c on Red Hat Enterprise Linux 6 Best Practices Warning: Since Red Hat Enterprise Linux 6.4, setting swappiness to 0 will even more aggressively avoid swapping out, which increases the risk of out-of-memory (OOM) killing under strong memory and I/O pressure. To ach