> Disk performance and read and write latencies can sometimes be volatile, causing latency spikes on the order of seconds. See Brendan Gregg (and Bryan Cantril

> Disk performance and read and write latencies can sometimes be volatile, causing latency spikes on the order of seconds. See Brendan Gregg (and Bryan Cantrill) shouting at hard drives for Sun Microsystem's Fish Works project (ZFS for data and DTrace for instrumentation): * https://www.youtube.com/watch?v=tDacjrSCeq4 https://www.youtube.com/watch?v=tDacjrSCeq4 Retrospectives on the video: * https://www.youtube.com/watch?v=lMPozJFC8g0 https://www.youtube.com/watch?v=lMPozJFC8g0 * https://www.youtube.com/watch?v=_IYzD_NR0W4 https://www.youtube.com/watch?v=_IYzD_NR0W4