the inherent problem with multi-threaded model vs prefork n processes http://blog.zakame.net/tips/apache2-worker-lowmem
http://www.experts-exchange.com/Software/Server_Software/Web_Servers/Apache/Q_24192924.html rule seems to be more than 1 CPU go with worker 1 CPU go with MPM once you set your path on Worker all modules and all binaries under Apache have to be multi-threaded YMMV Martin ______________________________________________ Verzicht und Vertraulichkeitanmerkung/Note de déni et de confidentialité Diese Nachricht ist vertraulich. Sollten Sie nicht der vorgesehene Empfaenger sein, so bitten wir hoeflich um eine Mitteilung. Jede unbefugte Weiterleitung oder Fertigung einer Kopie ist unzulaessig. Diese Nachricht dient lediglich dem Austausch von Informationen und entfaltet keine rechtliche Bindungswirkung. Aufgrund der leichten Manipulierbarkeit von E-Mails koennen wir keine Haftung fuer den Inhalt uebernehmen. Ce message est confidentiel et peut être privilégié. Si vous n'êtes pas le destinataire prévu, nous te demandons avec bonté que pour satisfaire informez l'expéditeur. N'importe quelle diffusion non autorisée ou la copie de ceci est interdite. Ce message sert à l'information seulement et n'aura pas n'importe quel effet légalement obligatoire. Étant donné que les email peuvent facilement être sujets à la manipulation, nous ne pouvons accepter aucune responsabilité pour le contenu fourni. > Date: Fri, 17 Jul 2009 21:17:51 -0400 > From: ch...@christopherschultz.net > To: users@tomcat.apache.org > Subject: [OT] Apache httpd prefork versus worker MPM > > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > All, > > I've been working with Apache httpd and Tomcat together with mod_jk for > about 10 years, and I've always been using the prefork MPM. I'm setting > up a new development server with Debian Lenny and apt-get prefers to > install the worker MPM. I can definitely install the prefork MPM if I > want, but I figured I'd take this opportunity to ask about the worker MPM. > > Has anyone had any configuration problems when using the worker MPM? Any > performance problems? The worker MPM is advertised as "high-performance" > and I was wondering if it would be a PITA to use or anything like that. > > If the worker MPM really is higher performance, I'd prefer to use that, > but only if there are no big gotchas that anyone can think of. > > I'd appreciate some feedback from folks that have used both the prefork > and worker MPMs at one point, and might be able to comment on their > different experiences. > > Thanks, > - -chris > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.9 (MingW32) > Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ > > iEYEARECAAYFAkphIr8ACgkQ9CaO5/Lv0PCM8gCePSdyOk5U1rt5yndOsrta/E+B > yuQAnjmhsTZn6s9Fg0Z8x3QgJRh9ejw7 > =Fmnd > -----END PGP SIGNATURE----- > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > _________________________________________________________________ Windows Live™ SkyDrive™: Store, access, and share your photos. See how. http://windowslive.com/Online/SkyDrive?ocid=TXT_TAGLM_WL_CS_SD_photos_072009
