of block input operationsecho $dat["ru_msgsnd"]; // number of IPC messages sentecho $dat["ru_msgrcv
6ru_minflt不需要I/O的页面错误7ru_majflt需要I/O的页面错误8ru_nswap换出次数9ru_inblock阻止输入操作10ru_oublock块输出操作11ru_msgsnd发送的消息12ru_msgrcv
61SYS_KILL=62SYS_UNAME=63SYS_SEMGET=64SYS_SEMOP=65SYS_SEMCTL=66SYS_SHMDT=67SYS_MSGGET=68SYS_MSGSND=69SYS_MSGRCV