[Fwd: Re: rlm_perl (threads) performance question]

[Boian Jordanov]

I have a clue, maybe your client is not able to do more requests or  
your configuration on client side is wrong.

Best Regards,
Boian Jordanov
SNE
Orbitel - Next Generation Telecom
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On Oct 17, 2007, at 9:17 AM, Alan DeKok wrote:

> Apostolos Pantsiopoulos wrote:
>> Well, yes that has been my main concern I must admit... because I  
>> have
>> seen so many replies in the mailing
>> list "urging" people to make the backend DB faster (and  
>> concentrating on
>> that aspect alone when the server performs poorly).
>
>   There are many factors to consider in tuning a system.  A RADIUS
> server all by itself can handle 5k requests/s, if it doesn't access  
> DB's
> or any files.  A stand-along DB client can do 1000's of reads/s all by
> itself.
>
>   The combination of the two does NOT necessarily get the best of
> both... i.e. 1000's of reads/s through RADIUS.  Interaction effects  
> mean
> that the maximum throughput is LESS than the maximum throughput of  
> each
> piece in isolation.
>
>>>   Find out what else is stopping the server from processing  
>>> requests.
>>> Is there ANYTHING you have configured other than your Perl  
>>> script?  If
>>> so, that may be the issue.
>>>
>> I''ll re-check it.
>
>   Run "cachegrind" to see where all of the CPU time is spent.  It  
> won't
> count sleeping (or waiting for network activity), so the times may be
> somewhat misleading.  But it may help.
>
>   Alan DeKok.
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