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Re: odd estat numbers

From: Mark D Powell <Mark.Powell_at_eds.com>
Date: 14 Nov 2002 16:50:38 -0800
Message-ID: <2687bb95.0211141650.5d19b8b6@posting.google.com>


spamdump_at_nospam.noway.nohow (Ed Stevens) wrote in message news:<3dd3cbe3.56614988_at_ausnews.austin.ibm.com>...
> Platform: Oracle EE 8.1.7 on Win2k
>
> Feeding a series of estat reports to Oraperf, and started getting back replies
> that 'timed statistics might not be turned on'. Well, I knew that wasn't the
> case, so I started comparing and estat report that Oraperf liked vs. one that it
> didnt'. I don't know if this caused the hiccup, but I found this in the 'bad'
> report:
>
> SVRMGR> Rem System wide wait events for non-background processes (PMON,
> <snip>
> Event Name Count Total Time Avg Time
> -------------------------------- ------------- ------------- -------------
> SQL*Net message from client 68 0 0
> SQL*Net message to client 68 0 0
> control file sequential read 15 0 0
> db file sequential read 14 0 0
> file open 15 0 0
> log file sync 1 0 0
> refresh controlfile command 4 0 0
> 7 rows selected.
> SVRMGR>
> SVRMGR>
> SVRMGR> Rem System wide wait events for background processes (PMON, SMON, etc)
> <snip>
> Event Name Count Total Time Avg Time
> -------------------------------- ------------- ------------- -------------
> control file parallel write 291 0 0
> control file sequential read 12 0 0
> db file parallel write 1 0 0
> log file parallel write 1 0 0
> pmon timer 292 0 0
> rdbms ipc message 890 0 0
> smon timer 3 0 0
> 7 rows selected.
> SVRMGR>
>
>
>
> Notice that in spite of their being counts, the reported times are zero. I
> might could understand that for low-count items like log_file_sync, the total
> time might have been below the millisecond threshold, but ALL of them?

Ed, did you turn timed statistics on at the database level? (timed_statistics = true in init.ora)

HTH -- Mark D Powell -- Received on Thu Nov 14 2002 - 18:50:38 CST

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