Physical Reads and Writes

  • From: Bill Zakrzewski <bill@xxxxxxxxxxxx>
  • To: ORACLE-L <oracle-l@xxxxxxxxxxxxx>
  • Date: Fri, 28 Aug 2009 15:49:08 -0400

I am trying to determine how many physical reads and physical writes are happening on one of my database servers. I tried using the "sar - b" command, but the physical reads and writes always appears to be zero. 


16:37:26 bread/s lread/s %rcache bwrit/s lwrit/s %wcache pread/s pwrit/s
16:37:31       1    3768     100       6    1508     100       0       0
16:37:36       1    3812     100       4    1546     100       0       0
16:37:41       1    3923     100       2    1589     100       0       0
16:37:46       1    3751     100       7    1522     100       0       0


Environment:
Sun Solaris 9
Oracle 9.2.0.8.0


Any suggestions?

Thanks
Bill

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