本文是在阅读Introduction to Lustre* Architecture的如下章节时的笔记。
Lustre – Fast, Scalable Storage for HPCLustre Scalable StorageLustre Building BlocksLustre Storage Scalability Lustre software services are implemented entirely within the Linux kernel,…
在使用ASH不能满足,需要从AWR,即HIST系列表估算每个用户的cpu消耗,只能进行大概估算
先计算各用户使用的cpu time计算出各用户占比将用户cpu time 与osstat的cpu 使用率相乘
with cpu_usage as (select snap_id,BUSY_TIME/(IDLE_TIMEBUSY…