Hi guys, I’m using Fio to generate workloads for Lustre. But I found a weird throughput pattern, it always has good performance at the beginning and then drops and remain at lower speed. As it is shown in this figure from telegraf collected data (https://ibb.co/Mc4hw4B) , the throughput suddenly drops and remains at that low value all the time. Did I set something wrong? PS, my workload settings: [global] fadvise_hint=0 direct=1 numjobs=6 iodepth=32 ioengine=libaio directory=/mnt/lustrefs size=100G [job] runtime=2d time_based=1 rw=randrw bs=4k rwmixread=90 ------------------------------------------------ Best regards, Houkun
