* Ben Ricker <[EMAIL PROTECTED]> [1231 20:31]: > On Wed, 2002-12-18 at 12:26, Matt Harris wrote: > > Apache normally runs multiple processes to handle multiple simoultaneous > > user requests. This can be configured in your httpd.conf. Tomcat runs > > multiple processes, which it calls "workers". Since tomcat is in java > > and not a truly binary-compiled language (like C or C++) it runs under > > java which is part of your JRE (java runtime environment).
Is that right? I thought these were multiple threads, not processes (see below). > Another small tidbit: Linux's 'ps' command shows threads as processes. > Apache runs multiple processes, but Java runs one processes with > multiple threads. Can't remember why Linux does that... <geek> Linux uses a model called 'process threads', where a single process with multiple threads in it gets mapped to one system process per thread. Technically this breaks POSIX compatibility, because threads in a single process are supposed to have the same PID. Solaris uses a totally different threading model called 'schedular activations' which is far too complicated to discuss here. The BSDs use a different model again. So generally you only see the 'lots of threads look like lots of processes' bug under Linux. </geek> > Anyway, we run our Tomcats on Solaris and there is only one java process > per Tomcat instance listed in 'ps'. -- Rasputin :: Jack of All Trades - Master of Nuns -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
