Re: [PERFORM] Visual Explain
Will this run on other platforms? OSX maybe? I've known about this tool for a while, but it seems many people do not know of its existence and I think it would be useful to a lot of people who have a hard time reading explain analyze output. (And even those who can read them without blinking.. when you get deep in join hell it gets tricky!) Red Hat Visual Explain - part of Red Hat Database. It is what the name implies - a graphical (java) program to draw a picture of your query plan (along with all the juicy information explain analyze provides). I just tried it out today and after upgrading my JDBC to 7.4 it worked fine (If you get a message about SET AUTOCOMMIT then you need to upgrade your jdbc jar) Quite handy for getting a grasp on stupidly large query plans. http://sources.redhat.com/rhdb/visualexplain.html I used the CVS version, I have no idea how well the official releases work. Anyone else using it? -- Jeff Trout [EMAIL PROTECTED] http://www.jefftrout.com/ http://www.stuarthamm.net/ ---(end of broadcast)--- TIP 9: the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. ---(end of broadcast)--- TIP 2: you can get off all lists at once with the unregister command (send unregister YourEmailAddressHere to [EMAIL PROTECTED])
Re: [PERFORM] Visual Explain
On 17/06/2004 12:10 Adam Witney wrote: Will this run on other platforms? OSX maybe? It's a Java app so it runs on any any platform with a reasonably modern Java VM. -- Paul Thomas +--+-+ | Thomas Micro Systems Limited | Software Solutions for Business | | Computer Consultants | http://www.thomas-micro-systems-ltd.co.uk | +--+-+ ---(end of broadcast)--- TIP 5: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faqs/FAQ.html
Re: [PERFORM] Visual Explain
On Jun 17, 2004, at 7:10 AM, Adam Witney wrote: Will this run on other platforms? OSX maybe? I've run it on both linux (rh8) and osx (panther). its java so it *should* run anywhere. It isn't the fastest beast in the world though. takes a bit of time to render the plan. -- Jeff Trout [EMAIL PROTECTED] http://www.jefftrout.com/ http://www.stuarthamm.net/ ---(end of broadcast)--- TIP 2: you can get off all lists at once with the unregister command (send unregister YourEmailAddressHere to [EMAIL PROTECTED])
Re: [PERFORM] Visual Explain
Is it possible to download the Visual Explain only (link)? I only see that you can donwload the whole ISO (which I hardly need). On Thu, 17 Jun 2004 13:52:15 +0100, Paul Thomas [EMAIL PROTECTED] wrote: On 17/06/2004 12:10 Adam Witney wrote: Will this run on other platforms? OSX maybe? It's a Java app so it runs on any any platform with a reasonably modern Java VM. -- Paul Thomas +--+-+ | Thomas Micro Systems Limited | Software Solutions for Business | | Computer Consultants | http://www.thomas-micro-systems-ltd.co.uk | +--+-+ ---(end of broadcast)--- TIP 5: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faqs/FAQ.html ---(end of broadcast)--- TIP 4: Don't 'kill -9' the postmaster
Re: [PERFORM] Visual Explain
I see. Thanks :). On Thu, 17 Jun 2004 18:35:11 +0100, Paul Thomas [EMAIL PROTECTED] wrote: On 17/06/2004 17:54 Vitaly Belman wrote: Is it possible to download the Visual Explain only (link)? I only see that you can donwload the whole ISO (which I hardly need). You can get it from CVS and build it yourself. -- Paul Thomas +--+-+ | Thomas Micro Systems Limited | Software Solutions for Business | | Computer Consultants | http://www.thomas-micro-systems-ltd.co.uk | +--+-+ ---(end of broadcast)--- TIP 8: explain analyze is your friend
[PERFORM] Slow vacuum performance
Pg: 7.4.2 RedHat 7.3 Ram: 8gig I have 6 million row table that I vacuum full analyze each night. The time seems to be streching out further and further as I add more rows. I read the archives and Josh's annotated pg.conf guide that setting the FSM higher might help. Currently, my memory settings are set as such. Does this seem low? Last reading from vaccum verbose: INFO: analyzing cdm.cdm_ddw_customer INFO: cdm_ddw_customer: 209106 pages, 3000 rows sampled, 6041742 estimated total rows I think I should now set my max FSM to at least 21 but wanted to make sure shared_buffers = 2000 # min 16, at least max_connections*2, 8KB each sort_mem = 12288# min 64, size in KB # - Free Space Map - max_fsm_pages = 10 # min max_fsm_relations*16, 6 bytes each #max_fsm_relations = 1000 # min 100, ~50 bytes each TIA Patrick Hatcher Macys.Com ---(end of broadcast)--- TIP 5: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faqs/FAQ.html
