Date: Thu, 26 May 2005 18:45:57 +0200 From: Mialon Pierre-Gilles <pierre-gilles@netaktiv.com> To: freebsd-database@freebsd.org Subject: Mysql performance Message-ID: <200505261845.58035.pierre-gilles@netaktiv.com>
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Hi, I run mysql on a dual-opteron with 2Go of Ram. I don't use the linuxthread. I use the mysql-server-4.1.10a on FreeBSD 5.3 AMD64 I don't understand why I have only one /usr/local/libexec/mysqld running in ps aux. And I'm looking for a good tutorial to speed up the mysql-server on a FreeBSD box. The output is the content of mysql query slow... Horrible !!! # User@Host: # Query_time: 837 Lock_time: 0 Rows_sent: 1 Rows_examined: 454060 SET timestamp=1117125449; SELECT articles.id_article,articles.id_rubrique,articles.id_secteur,articles.surtitre,articles.titre,articles.soustitre,articles.date,articles.date_redac,articles.date_modif,articles.visites,articles.popularite,articles.statut,articles.accepter_forum,articles.lang,articles.id_trad,MOD(articles.id_article * UNIX_TIMESTAMP(), 32767) & UNIX_TIMESTAMP() AS alea FROM spip_articles AS articles,spip_mots_articles AS lien_mot,spip_mots AS mots WHERE articles.id_article=lien_mot.id_article AND lien_mot.id_mot=mots.id_mot AND mots.titre='Bandeau' AND articles.statut='publie' GROUP BY articles.id_article ORDER BY alea LIMIT 0,1; # Time: 050526 18:37:31 # User@Host: # Query_time: 798 Lock_time: 0 Rows_sent: 1 Rows_examined: 454060 SET timestamp=1117125451; SELECT articles.id_article,articles.id_rubrique,articles.id_secteur,articles.surtitre,articles.titre,articles.soustitre,articles.date,articles.date_redac,articles.date_modif,articles.visites,articles.popularite,articles.statut,articles.accepter_forum,articles.lang,articles.id_trad,MOD(articles.id_article * UNIX_TIMESTAMP(), 32767) & UNIX_TIMESTAMP() AS alea FROM spip_articles AS articles,spip_mots_articles AS lien_mot,spip_mots AS mots WHERE articles.id_article=lien_mot.id_article AND lien_mot.id_mot=mots.id_mot AND mots.titre='Bandeau' AND articles.statut='publie' GROUP BY articles.id_article ORDER BY alea LIMIT 0,1; -- Pierre-Gilles Mialon mialon@netaktiv.com
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