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22#
发表于 2013-8-1 16:46:22
Event Waits Time(s) Avg Wait(ms) % Total Call Time Wait Class
log file sync 305,235 6,418 21 42.8 Commit
RMAN backup & recovery I/O 3,383 3,035 897 20.2 System I/O
Backup: sbtwrite2 402,540 2,385 6 15.9 Administrative
Backup: sbtbackup 4 1,780 444,919 11.9 Administrative
有磁带备份 ,
physical read total IO requests 649,660 154.03 2.53
physical read total bytes 1.7E+11 39,434,315.86 648,695.86
physical write total IO requests 700,799 166.15 2.73
physical write total bytes 15,946,042,880 3,780,693.54 62,192.54
iOPS 大约 300 , 吞吐量 41MB/S ; OS 线程启动 平均917ms 极慢
os thread startup 419 94 384 917 0.00
OS_CPU_WAIT_TIME 713,100
VM_IN_BYTES 8,486,592,512
VM_OUT_BYTES 59,946,004,480 55g的swap out
你是否能 汇总一下问题 几个时段的 VM_OUT_BYTES?
RMAN backup & recovery I/O 897 平时有这么慢吗?
这一天做的是全备份吗? 备份量多少
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