I have such setup Java 11 Corretto inside Docker running on EC2 Java options: -Xms1200m -Xmx1200m -XX:+UseG1GC -Xlog:gc* In log I see that usually GC takes ~100-200ms, but for some timeslots, I see some weird behavior: [2074.114s][info][gc,phases ] GC(39) Other: 4082.5ms What does this “other” step mean? Answer This is most likely due to time spent writing the log out