I think it was Dave Ensor... ----- Original Message ----- To: "Multiple recipients of list ORACLE-L" <[EMAIL PROTECTED]> Sent: Monday, April 22, 2002 6:30 PM
> Hi Connor, > > Somebody (I think it was Cary) mentioned your little PL/SQL procedure that > will provide any required CHR. So you are famous, even if you were not > present :) > > And yes, without seeming to migrate to the CHR camp, there is some merit in > what you are saying. However, I would suggest that tracking 'normal' delta > values of 'cache buffer chain' gets, misses, spins and sleeps from > V$SYSTEM_EVENT/V$LATCH, as well as deltas of 'table scan rows gotten' vs > 'table fetch by rowid' would be a better 'ratio' than the CHR which will > only serve to feed a myth. The former would give you some indication of LIO > (and the stress it causes on the system) and the latter will indicate raw > requirements that were met but were the ones that drove PIO.... As for me, I > detect changes in the following SQL and page out to an on-call DBA when some > set limits are exceeded: > > select event, count(*) from v$session_wait > group by event; > > This does show the 'current' bottleneck and I still remain true to the > calling of OWI!! > > John Kanagaraj > Oracle Applications DBA > DBSoft Inc > (W): 408-970-7002 > > Grace - Getting something we don't deserve > Mercy - NOT getting something we deserve > > Click on 'http://www.needhim.org' for Grace and Mercy that is freely > available! > > ** The opinions and statements above are entirely my own and not those of my > employer or clients ** > > > > -----Original Message----- > > From: Connor McDonald [mailto:[EMAIL PROTECTED]] > > Sent: Monday, April 22, 2002 4:44 PM > > To: Multiple recipients of list ORACLE-L > > Subject: RE: Anything new from IOUG? + "OWI" Born!! > > (Anjo/Mogens, please > > n > > > > > > I still like to recommend the buffer cache hit ratio > > because its so easy to please customers with an > > improvement - A plsql routine to generate any desired > > hit ratio on a running system is freely available for > > download from my site... a consultants dream! :-) > > > > But, serious hat on temporarily, there IS still a use > > for the buffer hit ratio as a "delta" measurement. > > What I mean by this is that you measure it every 'n' > > mins/hrs/whatever and store it. When it displays a > > massive dip or a massive increase (ie something out of > > the ordinary for *your* system), then whilst it > > doesn't necessarily mean anything is wrong - it DOES > > mean that something has changed in your system, which > > is a good prompt to do some investigation.. > > > > hth > > connor > > > > --- John Kanagaraj <[EMAIL PROTECTED]> wrote: > > > Mark, > > > > > > This is from a first-timer at IOUG, so I may be way > > > off here. > > > > > > A lot of marketing blurb was thrown out at IOUG > > > (probably a lot less than > > > usual, and *much* less than Oracle OpenWorld in any > > > case!). As for tools, > > > many vendors were flogging the same ones, improved > > > versions maybe. One which > > > did make us say 'wow' was StorageXpert from Quest. > > > IMHO, this is an > > > excellent tool, engineered by our very own Gaja. I > > > believe details are at > > > the Quest site at www.quest.com. If you have EMC > > > disks and are facing > > > performance problems, I believe there is the best > > > there is. (Or even if you > > > have other storage devices, it would still give you > > > the hotspots). > > > > > > And NO, I do NOT work for Quest, nor have Quest > > > stock! > > > > > > And for others, I believe this was a major turning > > > point and an eye-opener > > > as far as the Wait Interface goes (This has > > > (un)officially been renamed to > > > OWI as per Kirti's slides :-). Most attendees 'saw > > > the light' as far as CHR > > > (Cache Hit Ratio) goes, and there were two distinct > > > camps after the first > > > few days - the 'CHR' and 'OWI'. No prizes for > > > guessing who won the day! The > > > massive number of defections and the absolute > > > absense of > > > CHR-based-discussions at the Performance round > > > tables was clear evidence > > > that OWI is here to stay! (Mr. R might still rewrite > > > that book sooner than > > > later!) > > > > > > About 20 Listers met for dinner on Sunday night (and > > > again in a larger group > > > at the SeaWorld bash). The meeting was characterized > > > by geek-talk such as > > > 'Can you fit us all in one extent?' i.e. 'can we all > > > sit at one table?'), > > > 'Please coalesce' - 'please move in so that more > > > people can fit into the > > > aisle seats'. > > > > > > Oh Boy, that WAS a lot of fun! > > > > > > John Kanagaraj > > > Oracle Applications DBA > > > DBSoft Inc > > > (W): 408-970-7002 > > > > > > Grace - Getting something we don't deserve > > > Mercy - NOT getting something we deserve > > > > > > Click on 'http://www.needhim.org' for Grace and > > > Mercy that is freely > > > available! > > > > > > ** The opinions and statements above are entirely my > > > own and not those of my > > > employer or clients ** > > > > > > > > > > -----Original Message----- > > > > From: Mark Leith [mailto:[EMAIL PROTECTED]] > > > > Sent: Monday, April 22, 2002 4:58 AM > > > > To: Multiple recipients of list ORACLE-L > > > > Subject: Anything new from IOUG? > > > > > > > > > > > > Hi All that recently attended IOUG. > > > > > > > > If you don't already know - I sell "tools" for > > > Oracle. > > > > (delete this now if > > > > you want to DG! ;P) > > > > > > > > I was just wondering if anybody at IOUG had any > > > feedback on > > > > any "new" tools > > > > that were launched, or any tools that made a > > > significant > > > > impact at IOUG? > > > > > > > > This is purely for "vendor awareness" for myself, > > > as I like > > > > to keep up to > > > > date on anything new in and around our particular > > > market > > > > place.. If anybody > > > > saw something and thought "wow!", I'd be > > > interested in > > > > hearing about it. If > > > > you would like to contact me directly about this - > > > please > > > > feel free, though > > > > I feel the list *could* also benefit from this.. > > > > > > > > Cheers > > > > > > > > Mark > > > > > > > > > > > =================================================== > > > > Mark Leith | T: +44 (0)1905 330 281 > > > > Sales & Marketing | F: +44 (0)870 127 5283 > > > > Cool Tools UK Ltd | E: [EMAIL PROTECTED] > > > > > > > =================================================== > > > > http://www.cool-tools.co.uk > > > > Maximising throughput & performance > > > > > > > > > > > > -- > > > > Please see the official ORACLE-L FAQ: > > > http://www.orafaq.com > > > > -- > > > > Author: Mark Leith > > > > INET: [EMAIL PROTECTED] > > > > > > > > Fat City Network Services -- (858) 538-5051 > > > FAX: (858) 538-5051 > > > > San Diego, California -- Public Internet > > > access / Mailing Lists > > > > > > > > > -------------------------------------------------------------------- > > > > 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: John Kanagaraj > > > INET: [EMAIL PROTECTED] > > > > > > Fat City Network Services -- (858) 538-5051 FAX: > > > (858) 538-5051 > > > San Diego, California -- Public Internet > > > access / Mailing Lists > > > > > -------------------------------------------------------------------- > > > 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). > > > > ===== > > Connor McDonald > > http://www.oracledba.co.uk (mirrored at > > http://www.oradba.freeserve.co.uk) > > > > "Some days you're the pigeon, some days you're the statue" > > > > __________________________________________________ > > Do You Yahoo!? > > Everything you'll ever need on one web page > > from News and Sport to Email and Music Charts > > http://uk.my.yahoo.com > > -- > > Please see the official ORACLE-L FAQ: http://www.orafaq.com > > -- > > Author: =?iso-8859-1?q?Connor=20McDonald?= > > INET: [EMAIL PROTECTED] > > > > Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 > > San Diego, California -- Public Internet access / Mailing Lists > > -------------------------------------------------------------------- > > 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: John Kanagaraj > INET: [EMAIL PROTECTED] > > Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 > San Diego, California -- Public Internet access / Mailing Lists > -------------------------------------------------------------------- > 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 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists -------------------------------------------------------------------- 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).