Pound on ntpl system / Thierry Coopman <thierry@keytradebank.com>

Hi,

I finally got nptl to work ...
The problem was the CHOST definition in /etc/make.conf, it needs at 
least a 486-*

I have one system on nptl and another one on linuxthreads.

it looks like the load balancer using a least connected algo sends about 
10% more requests to the nptl machine, so I could conclude from this 
that it's faster. It also consumes far less CPU cycles, the CPU load if 
the nptl machine is 1/3 of the linuxthreads machine

-- 
Thierry Coopman
Security Coordinator
Keytrade Bank

-- 
Keytrade Bank accepts no liability for the content of this email. For 
more info please visit http://www.keytradebank.com/maildisclaimer.html

Re: Pound on ntpl system
Dennis Allison <allison(at)sumeru.stanford.EDU>

2004-08-13 09:16:15

[ SNIP ]

Hi Thierry, 
Glad to hear you have solved the problem--but there's not really enough
information for me to replicate it in the distro I use.  Any hint as to
what to change/update for RH systems?

On Thu, 12 Aug 2004, Thierry Coopman wrote:

> Hi,
> 
> I finally got nptl to work ...
> The problem was the CHOST definition in /etc/make.conf, it needs at 
> least a 486-*
> 
> I have one system on nptl and another one on linuxthreads.
> 
> it looks like the load balancer using a least connected algo sends about 
> 10% more requests to the nptl machine, so I could conclude from this 
> that it's faster. It also consumes far less CPU cycles, the CPU load if 
> the nptl machine is 1/3 of the linuxthreads machine
> 
> -- 
> Thierry Coopman
> Security Coordinator
> Keytrade Bank
> 
> -- 
> Keytrade Bank accepts no liability for the content of this email. For 
> more info please visit http://www.keytradebank.com/maildisclaimer.html
>

Re: Pound on nptl system
Thierry Coopman <thierry(at)keytradebank.com>

2004-08-13 11:35:35

[ SNIP ]

Haven't touched a Red Hat in years.
The general hints I can provide is:
* use a  2.6.x kernel
* make sure you have the 2.6 include files on your system, or point the 
compilation of glibc to the kernel sources
* recompile glibc (probably define nptl on the .configure command)
* execute /lib/libc.so.6, the output should have nptl

Not sure there is an RPM solution for this...


Dennis Allison wrote:

>Hi Thierry, 
>Glad to hear you have solved the problem--but there's not really enough
>information for me to replicate it in the distro I use.  Any hint as to
>what to change/update for RH systems?
>
>On Thu, 12 Aug 2004, Thierry Coopman wrote:
>
>  
>
>>Hi,
>>
>>I finally got nptl to work ...
>>The problem was the CHOST definition in /etc/make.conf, it needs at 
>>least a 486-*
>>
>>I have one system on nptl and another one on linuxthreads.
>>
>>it looks like the load balancer using a least connected algo sends about 
>>10% more requests to the nptl machine, so I could conclude from this 
>>that it's faster. It also consumes far less CPU cycles, the CPU load if 
>>the nptl machine is 1/3 of the linuxthreads machine
>>
>>-- 
>>Thierry Coopman
>>Security Coordinator
>>Keytrade Bank
>>
>>-- 
>>Keytrade Bank accepts no liability for the content of this email. For 
>>more info please visit http://www.keytradebank.com/maildisclaimer.html
>>
>>    
>>
>
>
>
>  
>


-- 
Thierry Coopman
Security Coordinator
Keytrade Bank

-- 
Keytrade Bank accepts no liability for the content of this email. For 
more info please visit http://www.keytradebank.com/maildisclaimer.html

Re: Pound on nptl system
Dennis Allison <allison(at)sumeru.stanford.EDU>

2004-08-13 17:08:32

[ SNIP ]

I've been slow to move to a 2.6 kernel.  What distro are you using?  The
RH9 distro is a 2.4 kernel with NPTL back ported.  I've had some major
problems with it, but it now seems to be working runing Pound with NPTL 
off.  I was hoping to get to work with NPTL on as an intrim solution.

On Fri, 13 Aug 2004, Thierry Coopman wrote:

> Haven't touched a Red Hat in years.
> The general hints I can provide is:
> * use a  2.6.x kernel
> * make sure you have the 2.6 include files on your system, or point the 
> compilation of glibc to the kernel sources
> * recompile glibc (probably define nptl on the .configure command)
> * execute /lib/libc.so.6, the output should have nptl
> 
> Not sure there is an RPM solution for this...
> 
> 
> Dennis Allison wrote:
> 
> >Hi Thierry, 
> >Glad to hear you have solved the problem--but there's not really enough
> >information for me to replicate it in the distro I use.  Any hint as to
> >what to change/update for RH systems?
> >
> >On Thu, 12 Aug 2004, Thierry Coopman wrote:
> >
> >  
> >
> >>Hi,
> >>
> >>I finally got nptl to work ...
> >>The problem was the CHOST definition in /etc/make.conf, it needs at 
> >>least a 486-*
> >>
> >>I have one system on nptl and another one on linuxthreads.
> >>
> >>it looks like the load balancer using a least connected algo sends about 
> >>10% more requests to the nptl machine, so I could conclude from this 
> >>that it's faster. It also consumes far less CPU cycles, the CPU load if 
> >>the nptl machine is 1/3 of the linuxthreads machine
> >>
> >>-- 
> >>Thierry Coopman
> >>Security Coordinator
> >>Keytrade Bank
> >>
> >>-- 
> >>Keytrade Bank accepts no liability for the content of this email. For 
> >>more info please visit http://www.keytradebank.com/maildisclaimer.html
> >>
> >>    
> >>
> >
> >
> >
> >  
> >
> 
> 
> -- 
> Thierry Coopman
> Security Coordinator
> Keytrade Bank
> 
> -- 
> Keytrade Bank accepts no liability for the content of this email. For 
> more info please visit http://www.keytradebank.com/maildisclaimer.html
>