I do accept your suggestion but I've just received Cary's book
and I'm enjoying myself very much. I do humbly apologize for any
confusion. To make is perfectly clear to anyone, BCHR is no longer
very relevant indicator. My last sentence ("database with BCHR 99.9%
must be OK") was formulated in that way as an allusion to Cary Milsap's
known article "Why 99% Database Buffer Cache Hit Ratio is NOT Ok".
I was just poking little harmless fun at the "silver bullet" approach.On Thu, 2003-10-02 at 12:49, Thomas Day wrote: > How about a tongue-in-cheek smiley (>) to indicate that the following > advice is offered ironically and is not to be followed. Sort of like the > hidden parameter _SET_RUN_FASTER=TRUE. We are always getting new members > and they may not be aware of previous threads. > > > > > > Mladen Gogala > > <mladen To: Multiple recipients of list > ORACLE-L <[EMAIL PROTECTED]> > @wangtrading.com cc: > > > Subject: Re: Physical I/O and > databases other than oracle > Sent by: > > ml-errors > > > > > > 10/02/2003 12:34 > > PM > > Please respond > > to ORACLE-L > > > > > > > > > > On Thu, 2003-10-02 at 11:44, Garry Gillies wrote: > > > Im reading an academic book on databases and it states that Physical > I/O > > > Eh? > > What IS the primary bottleneck in tuning Oracle? > > Cache hit ratio. You tune the buffer cache hit ratio (BCHR) and your job > is done. Database with 99.9% BCHR must be OK. > > > > > Note: > This message is for the named person's use only. It may contain > confidential, proprietary or legally privileged information. No > confidentiality or privilege is waived or lost by any mistransmission. If > you receive this message in error, please immediately delete it and all > copies of it from your system, destroy any hard copies of it and notify the > sender. You must not, directly or indirectly, use, disclose, distribute, > print, or copy any part of this message if you are not the intended > recipient. Wang Trading LLC and any of its subsidiaries each reserve the > right to monitor all e-mail communications through its networks. > Any views expressed in this message are those of the individual sender, > except where the message states otherwise and the sender is authorized to > state them to be the views of any such entity. > > -- > Please see the official ORACLE-L FAQ: http://www.orafaq.net > -- > Author: Mladen Gogala > 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 Note: This message is for the named person's use only. It may contain confidential, proprietary or legally privileged information. No confidentiality or privilege is waived or lost by any mistransmission. If you receive this message in error, please immediately delete it and all copies of it from your system, destroy any hard copies of it and notify the sender. You must not, directly or indirectly, use, disclose, distribute, print, or copy any part of this message if you are not the intended recipient. Wang Trading LLC and any of its subsidiaries each reserve the right to monitor all e-mail communications through its networks. Any views expressed in this message are those of the individual sender, except where the message states otherwise and the sender is authorized to state them to be the views of any such entity. -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Mladen Gogala 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).
