Helo all
We are running:
Dual Intel PIII 800,
512MB RAM,
Redhat 7.0
Kernel 2.4.7
CF 4.5 SP2 (EnterPrise)
IBM DB2 (EnterPrise)
And some more software
Never had a problem with CF 'memory leaking'
It has been running for 99 days today,
and never had to restart it.
Dont know about others complaining about
SMP and 4.5, but I must tell you.
This box of mine is solid as a rock !!
2.4.7 is DEFINATELY more stable with CF than 2.2.x
I'll get off my soap box now.
Herman
> -----Original Message-----
> From: Tom Jordahl [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, September 26, 2001 4:47 PM
> To: CF-Linux
> Subject: RE: Memory Usage growing.
>
>
> Christoph,
>
> You need to examine the template(s) you run on a schedule and find
> out what is eating memory. The bug is most likely in your template
> not in the CF scheduler. Don't get obsessed with how the OS or CF uses
> memory - a correctly coded CFML application or template should be
> 'memory
> stable'. That is, under constant load, memory usage should level off
> after an initial warm-up period. If it doesn't, 99 times out of 100 it
> is
> because of incorrectly coded CFML.
>
> Try this:
> Put the template on a test server, run it by hand 10 times - watch CF
> grow.
> Slice the template in half, run it by hand 10 times - does it still
> grow?
> Repeat till you eliminate the growth, then isolate what statement you
> removed
> to stop the memory growth.
>
> FYI - Apache is not multi-threaded, it is multi-process. Each process
> exits
> after serving a certain number to HTTP requests (100 by default I
> think).
> This isolates Apache from memory leaks in its code or plug in modules.
> It is also slower than a multi-threaded web server (i.e. Netscape,
> IIS).
>
> --
> Tom Jordahl
> MacroMedia Server Development
>
>
>
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, September 26, 2001 5:23 AM
> To: CF-Linux
> Subject: Re: Memory Usage growing.
>
>
> Hi Tom.
>
> >
> > OK, try this one:
> > #define TWENTY_GIG (1024*1024*20)
> > main()
> > {
> > void *x = malloc(TWENTY_GIG); /* 20 Gig */
> > memset(x, 0, TWENTY_GIG-1);
> > free(x);
> > sleep(100);
> > }
> >
> > FYI - Threads are part of the process image.
> > Their memory is part of the whole process. Just because
> > a thread exits doesn't mean the memory it allocated
> > goes away.
>
> OK, this I didn't know.
>
> >
> > It clearly sounds to me that the page you run every five minutes
> > is the cause of your memory leak. If it is the only thing running,
> > then you have you culprit.
>
> This means that a CFML file that gets requested every 5 minutes just
> eats up
> all available memory (and even the complete swap space if we let it run
> long
> enough).
>
> I do not yet understand why this happens. If (with Linux) a process
> allocates 1 MB, frees it and then malloc's 1 MB again, the first memory
> chunk is reused !
>
> Only if the application still uses it and has not freed it this won't
> work.
>
>
> So what can we do with our regular scripts running all the time ?
> The only way to get around this would be a kind of CFFREE - Tag.
> Or do you expect some code in this CFML file to make CF think that the
> data
> is still needed and so not freeing it ?
>
>
>
> On a side note:
>
> Why does apache, a threaded webserver, work so well ?
> It never grows above approx 5MB even if it hands out GBytes of data.
>
> I think it will use the standard malloc also.
>
> Thanks for your answer,
>
> --
> Christoph Gr�ver, [EMAIL PROTECTED]
>
> Sitepark
> Gesellschaft f�r Informationsmanagement mbH
> Rothenburg 14-16
> D-48143 M�nster
>
> Telefon (0251) 482 65 -50
> Telefax (0251) 482 65 -39
>
> http://www.sitepark.de
>
>
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