My bad. Did not see that part. I tried to elevate buffer and SHMAX was a problem. I'll give it another try and will keep you posted. Thank you.
Rude - Last Territory Ou écouter ?http://www.deezer.com/fr/music/last-territory/the-last-hope-3617781 (Post-apocalyptic Metal)http://www.deezer.com/fr/music/rude-undertaker (Pop-Rock) Ou acheter ?La Fnachttp://recherche.fnac.com/fmia14622213/Last-Territory http://recherche.fnac.com/fmia14770622/Rude-Undertaker iTuneshttp://itunes.apple.com/us/artist/last-territory/id533857009?ign-mpt=uo%3D4 Date: Wed, 26 Sep 2012 07:17:56 -0700 From: ml-node+s1045698n5725506...@n5.nabble.com To: ffw_r...@hotmail.com Subject: Re: Same query doing slow then quick On 09/26/2012 16:14, FFW_Rude wrote: > Thank for you answer. > > shared_buffer is at 24Mb > effective_cache_size at 2048Mb > > What do you mean properly ? That's not really helping a novice... > from my previous mail: before looking further, please configure shared_buffers and effective_cache_size properly, it's fundamental you'll probably need to raise SHMALL/SHMMAX, take a look at: http://www.postgresql.org/docs/current/static/kernel-resources.html for 4GB of RAM I would start with shared_buffers to 512MB and effective_cache_size to 2GB > > > -- > View this message in context: > http://postgresql.1045698.n5.nabble.com/Same-query-doing-slow-then-quick-tp5725486p5725505.html > Sent from the PostgreSQL - performance mailing list archive at Nabble.com. > > -- No trees were killed in the creation of this message. However, many electrons were terribly inconvenienced. -- Sent via pgsql-performance mailing list ([hidden email]) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance jcigar.vcf (304 bytes) Download Attachment If you reply to this email, your message will be added to the discussion below: http://postgresql.1045698.n5.nabble.com/Same-query-doing-slow-then-quick-tp5725486p5725506.html To unsubscribe from Same query doing slow then quick, click here. NAML -- View this message in context: http://postgresql.1045698.n5.nabble.com/Same-query-doing-slow-then-quick-tp5725486p5725508.html Sent from the PostgreSQL - performance mailing list archive at Nabble.com.
