I would say that it depends on the system. If we are talking about a stock trading system, then TPM is very important as is transaction-time-to-completion. For a data warehouse, this may be absolutely meaningless. Of course, does TPM describe the width of the database pipe or it's depth? In the first case, it could process 42 tx/min by doing 42 concurrent tx each a minute in duration. Or it could do 42 tx in serial each lasting 1.42 seconds (yes the math is correct (or almost)...try it yourself by dividing 60/42).
One thing about TPM is that it is objective (if the size and nature of T can be defined). Unfortunately, Response Time Satisfaction is subjective and tougher to measure. Daniel "Thater, William" wrote: > Daniel Fink scribbled on the wall in glitter crayon: > > > If that is what this is for, the formula is very simple. TPM = x*42 > > where x is a number sufficient to justify the really cool hardware > > system you want. > > as a serious question, is TPM a valid measurement for a database? or are > there other measurements that give a more valid picture of performance > and/or utilization? > > -- > Bill "Shrek" Thater ORACLE DBA > "I'm going to work my ticket if I can..." -- Gilwell song > [EMAIL PROTECTED] > ------------------------------------------------------------------------ > Capital letters were always the best way of dealing with things you didn't > have a good answer to. - Douglas Adams > -- > Please see the official ORACLE-L FAQ: http://www.orafaq.net > -- > Author: Thater, William > 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.net -- Author: Daniel Fink 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).
