RE: Millisecond timer in PL/SQL

The link didn't work for me but this one will...

http://asktom.oracle.com/pls/ask/f?p=4950:8:3586321077250690228

Interesting solution.

S-

On Fri, 30 Sep 2005, Kirtikumar Deshpande wrote:

> Tom Kyte's web site has an answer:
> http://asktom.oracle.com/pls/ask/f?p=4950:8:3586321077250690228::NO::F4950_P8_DISPLAYID,F4950_P8_CRITERIA:341817437103
>
> - Kirti
>
>
>
> scott.hutchinson_at_interact-analysis.com wrote:
> Thomas,
>
> Unfortunatetly this only goes to 100th's of a second (same result as SELECT
> HSECS FROM V$TIMER). I'm after milliseconds.
>
> Thanks,
> Scott.
>
> Quoting "Mercadante, Thomas F (LABOR)" :
>
> > Scott,
> >
> > How about:
> >
> > select dbms_utility.get_time from dual?
> >
> >
> >
> > function get_time return number;
> > -- Find out the current time in 100th's of a second.
> > -- Output argukments:
> > -- get_time
> > -- The time is the number of 100th's of a second from some
> > -- arbitrary epoch.
> >
> >
> >
> > -----Original Message-----
> > From: oracle-l-bounce_at_freelists.org
> > [mailto:oracle-l-bounce_at_freelists.org] On Behalf Of
> > scott.hutchinson_at_interact-analysis.com
> > Sent: Friday, September 30, 2005 10:31 AM
> > To: oracle-l_at_freelists.org
> > Subject: Millisecond timer in PL/SQL
> >
> > All,
> >
> > I'm looking for a way to measure the elapsed time (in milliseconds) of
> > executing a bunch of functions within a PL/SQL package. I've written a
> > "timer"
> > function that records this by using SYSTIMESTAMP, however is causes the
> > sessions to spend a significant amount of time waiting on "cache buffers
> >
> > chains".
> >
> > Coding "w_date := SYSTIMESTAMP;" will result in a recursive "SELECT
> > SYSTIMESTAMP FROM DUAL", and this is the sql being executed by sessions
> > waiting
> > on this latch (from v$session_wait and v$sqlarea).
> >
> > Does anyone have suggestions for ways that I can improve this?
> >
> > I have 50 concurrent sessions (batch jobs) running this, and each will
> > call
> > the "timer" function about 60 times per second. Originally I used
> > V$TIMER,
> > however the HSECS from this was not granular enough.
> >
> > Thanks,
> >
> > Scott Hutchinson
> > Interact Analysis Ltd
> >
> > ::This message sent using the free Web Mail service from
> > http://TheName.co.uk
> > --
> > http://www.freelists.org/webpage/oracle-l
> > --
> > http://www.freelists.org/webpage/oracle-l
> >
>
>
>
>
> ::This message sent using the free Web Mail service from http://TheName.co.uk
> --
> http://www.freelists.org/webpage/oracle-l
>
>
> ---------------------------------
> Yahoo! for Good
> Click here to donate to the Hurricane Katrina relief effort.

-- 
Stephen Rospo        Principal Software Architect
Vallent Corporation (formerly Watchmark-Comnitel)
steve.rospo_at_vallent.com           (425)564-8145

This email may contain confidential information. If you received this in
error, please notify the sender immediately by return email and delete this
message and any attachments. Thank you.

--
http://www.freelists.org/webpage/oracle-l