dtrace discuss - Mar 2010 - Beginners question on providers

Hi
If I list all the providers I see a list for apache like below:
apache3156
apache3164
apache3165
apache3167
apache3168
apache3509
apache7363
apache7364
apache7365
apache7366
apache7367
Why do I see so many and what are their differences.
Best Regards Paul
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On Mon, Mar 15, 2010 at 03:24:17AM -0700, Paul Johnston
wrote:
> Hi
> If I list all the providers I see a list for apache like below:
> apache3156
> apache3164
> apache3165
> apache3167
> apache3168
> apache3509
> apache7363
> apache7364
> apache7365
> apache7366
> apache7367
> Why do I see so many and what are their differences.
That''s one per apache httpd process you have running at the time.
The number corresponds to the pid of the process.

vh

Mads Toftum
-- 
http://soulfood.dk

Hi Paul,
Apache has USDT probes 
(http://wikis.sun.com/display/DTrace/Statically+Defined+Tracing+for+User+Applications)
defined in it. These are per-process and are unique to a running 
instance of Apache process. That explains why you
see probes of the form apache<pid>:::.

thanks,
Krishnan

On 03/15/10 03:54 PM, Paul Johnston wrote:
> Hi
> If I list all the providers I see a list for apache like below:
> apache3156
> apache3164
> apache3165
> apache3167
> apache3168
> apache3509
> apache7363
> apache7364
> apache7365
> apache7366
> apache7367
> Why do I see so many and what are their differences.
> Best Regards Paul
>

Many thanks to all that''s exactly what it is.
Said I was a beginner at this stuff :-)

Paul
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