为了衡量用户的总CPU时间,我使用了以下字段中的“ utime”字段/proc/[pid]/stat: utime %lu Amount of time that this process has been scheduled in user mode, measured in clock ticks (divide by sysconf(_SC_CLK_TCK). This includes guest time, guest_time (time spent running a virtual CPU, see below), so that applications that are not aware of the guest time field do not …