I've got a shell script called "oramem.sh" (online at www.evdbt.com/tools.htm) that parses and summarizes the output from "pmap -x" for you. I'm sure that Oracle records some breakdown information about how much memory is used for different PGA and UGA areas, but I don't think that anyone will argue with "pmap -x". "oramem.sh" was written for and tested upon Solaris 8; can't vouch for it on other platforms...
Hope this helps... ----- Original Message ----- To: "Multiple recipients of list ORACLE-L" <[EMAIL PROTECTED]> Sent: Friday, October 04, 2002 4:38 AM > I know this has been discussed before and I have monitored the discussions > but I am not sure that I have seen a clear summary > and set of conclusions. > > I am trying to identify how much memory is used by the instance and all > connections. > > I can show sga to give a total memory of the base instance > /usr/sbin/pmap -x pid gives a rather verbose output and I struggle to work > out exactly which of the lines is the one I am most interested in > I have also tried ps -eo vsz,pid |grep 5225 where 5225 is the pid of an > oracle connection and that returns a value that includes the SGA and also > bigger than the return from the sql script below > > I run the following script to show me how much pga memory has been used for > each process > select name,sid,value/1024/1024 "Curr Mb" > from v$sesstat a, v$database c > where statistic# = 20 # shows current session PGA > > However I am convinced that that query is not accurate as it seems to return > some very small values on systems that are quite busy. Also statistic# =21 > which is the maximum for each process does not vary much from current which > disturbs me a little as we have a lot of constant connections > > Has anybody got a easier/more accurate method of determing memory usage > > Thanks in anticipation > > John > -- > Please see the official ORACLE-L FAQ: http://www.orafaq.com > -- > Author: > INET: [EMAIL PROTECTED] > > Fat City Network Services -- 858-538-5051 http://www.fatcity.com > San Diego, California -- Mailing list and web hosting services > --------------------------------------------------------------------- > To REMOVE yourself from this mailing list, send an E-Mail message > to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in > the message BODY, include a line containing: UNSUB ORACLE-L > (or the name of mailing list you want to be removed from). You may > also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Tim Gorman INET: [EMAIL PROTECTED] Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
