Oracle FAQ Your Portal to the Oracle Knowledge Grid
HOME | ASK QUESTION | ADD INFO | SEARCH | E-MAIL US
 

Home -> Community -> Usenet -> c.d.o.server -> Re: question about internals of oracle on linux

Re: question about internals of oracle on linux

From: Jim Kennedy <kennedy-downwithspammersfamily_at_attbi.com>
Date: Mon, 10 Feb 2003 04:42:24 GMT
Message-ID: <Q4G1a.50392$iG3.7031@sccrnsc02>


And why is this information important? You could file an Itar with Oracle, they might tell you. Won't truss tell you? Jim
"MAASK Group" <maask12345_at_hotmail.com> wrote in message news:891d79c5.0302092028.37177b18_at_posting.google.com...
> DA Morgan <damorgan_at_exesolutions.com> wrote in message
news:<3E46C742.55DB480B_at_exesolutions.com>...
> > "Howard J. Rogers" wrote:
> >
> > > On Sun, 09 Feb 2003 06:45:13 +0000, MAASK Group wrote:
> > >
> > > > rnel. I presume that an oracle server spawns a new
> > > > thread for serving each query. Which threads does it use? As in
POSIX
> > > > threads ( created by pthread_create() ) or linux threads ( created
by
> > > > clone() ) ?? Also for protecting any shared (global) data among
> > > > multiple threads or processes, does oracle use the linux semaphores
> > > > (using semget(), semop() syste
> > >
> > > I could have sworn that only Oracle on Windows uses a true
multi-threaded
> > > architecture. That Oracle on Unix and Linux uses a multi-process
> > > architecture. And that if you ps -ef | grep <ORACLE_SID here>, you
will
> > > see each of the processes listed.
> > >
> > > But you might be talking about something else entirely, I guess.
> > >
> > > Regards
> > > HJR
> >
> > My recollection is the same as yours. Threads on Windows, Processes on
UNIX.
> >
> > Daniel Morgan

>

> Well, I beg my pardon gentlemen. I am aware that there is nothing
> called a thread in linux. What I meant was the implementation of
> light-weight processes (I suppose threads are implemented as processes
> sharing memory on linux). So my question remains the same... with
> threads substituted by processes(created using pthread_create() or
> clone() and NOT fork() )
>

> Thanks & Regards,
> Asmita
> MAASK
Received on Sun Feb 09 2003 - 22:42:24 CST

Original text of this message

HOME | ASK QUESTION | ADD INFO | SEARCH | E-MAIL US