Session and Connection Management<\/li>\n<\/ul>\nUnsurprisingly, my ears pricked up at the merest mention of the first topic. Better still, he mentioned that the slides and some supporting notes will be available after the event, so I recommend you download those if you’re interested in performance.<\/p>\n
It was fascinating stuff and I had a strangely split reaction to it.<\/p>\n
a) Bl**dy h*ll, I’m going around telling people they won’t get much joy with Degrees of Parallelism much higher than single digits and these guys are using DOPs in excess of 100! That kind of blows away anything I’ve got to say on the subject.<\/p>\n
b) Actually, what I’ve written about is completely true for lots of sites because, a majority of customers have 1 or 2 HBAs operating at 100MB\/sec. He described this as effectively switching off PX as a viable option.<\/p>\n
There was so much excellent content here that I’d rather blog or write about it properly later. I am so glad APC reminded me, because it was my presentation of the week!<\/p>\n
(Oh, and at least he agreed with me about not using parallel_adaptive_multi_user 😉)<\/p>\n
After that, I skipped a presentation to catch up on some blogging and then I was torn. I’d promised my current client that I would attend “Best Practices for Planning, Testing and Deploying Oracle’s CPU” because patching is becoming more important at work. However, I knew Kevin Closson was speaking at the same time and I fancied attending that. In the end, I went for the CPU presentation. I’m not sure I made the right call, but there were a few interesting bits and pieces in there and I’ll probably cascade them back to the team when I get back on-site, but too boring for inclusion here. One statement that may not have been announced yet was that 9 months after a new minor release is available (e.g. 10.2.0.4) CPUs will not be available for the previous minor release (e.g. 10.2.0.3). That sounds like yet more upgrade workload. Oh, goody! 🙁<\/p>\n
Next was a burger (same place as last time!) a re-charge of my laptop and back in time for Tim Hall’s Unconference presentation “The Oracle DBA – A Dying Breed?” There’s a really good crowd, it’s a very interactive survey of the state of the DBA\/Developer relationship and, as I expected, Tim’s an energetic and funny speaker. (It’s one of the reasons I switched my schedule – I need entertainment on the last afternoon.) He even managed to withstand a barrage of loud music from across the hall. Oh, but I think he had a very modern, helpful, friendly bunch of developers and DBAs because I didn’t recognise the responses as being representative of my experience. It was like a Developer\/DBA love-in for goodness’ sake! 😉<\/p>\n
Good stuff, Tim!<\/p>\n
After this I might catch one more presentation, then the end of conference social in the Howard Street tent, then it’s on to an Oak Table dinner kindly organised by Jared Still. I doubt there’ll be much more blogging between now and my flight home tomorrow, so that’s all for now, folks!<\/p>\n","protected":false},"excerpt":{"rendered":"
The final day. I didn’t wake up until 5 and had a stack of emails relating to the performance problem I’m discussing at the moment. Once I’d got through those, I bumped into APC checking out of the hotel. He’ll be on his way to the airport now. I have to offer him a big… Continue reading OOW Day 5<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1357","post","type-post","status-publish","format-standard","hentry","category-uncategorized","entry"],"jetpack_featured_media_url":"","jetpack-related-posts":[{"id":837,"url":"http:\/\/orcldoug.com\/blog\/2006\/03\/10\/hotsos-2006-photos\/","url_meta":{"origin":1357,"position":0},"title":"Hotsos 2006 Photos","date":"March 10, 2006","format":false,"excerpt":"Many thanks to David Kurtz for taking photos of a much higher quality than mine and putting them on Flickr. There are some funny photos there, including a couple of Moans Nogood helping me to distribute free beer but, judging by later photos, he appears to have consumed it all\u2026","rel":"","context":"With 3 comments","img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1266,"url":"http:\/\/orcldoug.com\/blog\/2007\/05\/09\/stay-calm-ladies\/","url_meta":{"origin":1357,"position":1},"title":"Stay Calm, Ladies …","date":"May 9, 2007","format":false,"excerpt":"... and possibly gentlemen.I'm a little surprised that Thomas Presslie made the cardinal error of posting photos of the speakers at the MSDBF that will kick-off in three weeks time. I can only assume that he's prepared for the rush of Oracle groupies, clamouring to register for the remaining places.\u2026","rel":"","context":"With 17 comments","img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1041,"url":"http:\/\/orcldoug.com\/blog\/2006\/07\/31\/flatcat\/","url_meta":{"origin":1357,"position":2},"title":"Flatcat","date":"July 31, 2006","format":false,"excerpt":"Although I let Flatcat state his Loves and Hates for himself and he's the new Housemate of the Month, I couldn't leave it there.Flatcat is one of the most long-standing and valued members of the family although he's far too modest to admit it. Tigger was first but Flatcat turned\u2026","rel":"","context":"With 3 comments","img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1457,"url":"http:\/\/orcldoug.com\/blog\/2008\/12\/01\/roger-wilco\/","url_meta":{"origin":1357,"position":3},"title":"Roger Wilco","date":"December 1, 2008","format":false,"excerpt":"There's a bit of a story behind this one, so bear with me.Here's an excerpt from an email thread discussing arrangements for the Oak Table at this year's UKOUG conference. Question - Will you be bringing any employees to man the Oaktable?\u00a0 If so, they can register for exhibition only\u2026","rel":"","context":"With 3 comments","img":{"alt_text":"","src":"\/serendipity\/uploads\/xroger_ot.jpg.pagespeed.ic.hxf4ta_4Xw.jpg","width":350,"height":200},"classes":[]},{"id":975,"url":"http:\/\/orcldoug.com\/blog\/2005\/06\/08\/oug-scotland\/","url_meta":{"origin":1357,"position":4},"title":"OUG Scotland","date":"June 8, 2005","format":false,"excerpt":"I've been having a good time over the past day or two. Yesterday I gave the PX presentation to the Scottish branch of the OUG. As usual, I ran way over so I'm going to have to stop trying to 'do' PX in 45 minutes. I wasn't that happy with\u2026","rel":"","context":"Similar post","img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":994,"url":"http:\/\/orcldoug.com\/blog\/2006\/06\/14\/more-blogs\/","url_meta":{"origin":1357,"position":5},"title":"More blogs","date":"June 14, 2006","format":false,"excerpt":"Well, only one new blog really.Stephen Barr is a guy who I've been dealing with at work. He's a Data Warehouse specialist, part DBA, part designer, part developer. (There's a blog coming some time soon on the various Oracle roles in the modern business.) He's a contractor, too and we'll\u2026","rel":"","context":"With 2 comments","img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"_links":{"self":[{"href":"http:\/\/orcldoug.com\/blog\/wp-json\/wp\/v2\/posts\/1357","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/orcldoug.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/orcldoug.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/orcldoug.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/orcldoug.com\/blog\/wp-json\/wp\/v2\/comments?post=1357"}],"version-history":[{"count":0,"href":"http:\/\/orcldoug.com\/blog\/wp-json\/wp\/v2\/posts\/1357\/revisions"}],"wp:attachment":[{"href":"http:\/\/orcldoug.com\/blog\/wp-json\/wp\/v2\/media?parent=1357"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/orcldoug.com\/blog\/wp-json\/wp\/v2\/categories?post=1357"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/orcldoug.com\/blog\/wp-json\/wp\/v2\/tags?post=1357"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}