Re: logging of response time

2008-07-18 Thread Rainer Jung

Tony Anecito schrieb:

I have asked on this group but have never gotten an answer. My guess
is it means socket connect time. What that means is the real
question. Again, I have a theory that the amount of time is not just
the response time (taking into account the chatter of the signaling)
of the app but how long it takes before the client responds to close
the socket and the signal to propagate.

My 2cents worth. When I look at my logs on Windows the response time
as measured at Apache for requests that gets passed to Tomcat
(embedded in JBoss 4.2.2) is typically 0msec. Sometimes I see 15msec
even with -D or microsecond resolution (windows OS timer issue).




For http SOAP requests I get from all over the world from my RIA I
typically see 0msec in Apache and I am curious what is measured
elsewhere.


--- On Thu, 7/17/08, ywtsang [EMAIL PROTECTED] wrote:

i log the response time by the following option:

%D - Time taken to process the request, in millis

does this mean that the time includes the sum of:

- start of request - application logic - streaming the whole
response (html text) back to client

?


The time is taken at the beginning of the AccessLogValve invoke as part 
of the valves chain, and at the end, directly before formatting the log 
file and writing it out.


So it will not contain connection setup and I think also not receiving 
the request headers. It will include everything from then until writing 
the final response data to the socket.


Regards,

Rainer

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logging of response time

2008-07-17 Thread ywtsang

i log the response time by the following option:

%D - Time taken to process the request, in millis

does this mean that the time includes the sum of:

- start of request
- application logic
- streaming the whole response (html text) back to client

?

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Re: logging of response time

2008-07-17 Thread Tony Anecito
I have asked on this group but have never gotten an answer. My guess is it 
means socket connect time. What that means is the real question. Again, I have 
a theory that the amount of time is not just the response time (taking into 
account the chatter of the signaling) of the app but how long it takes before 
the client responds to close the socket and the signal to propagate.

My 2cents worth. When I look at my logs on Windows the response time as 
measured at Apache for requests that gets passed to Tomcat (embedded in JBoss 
4.2.2) is typically 0msec. Sometimes I see 15msec even with -D or microsecond 
resolution (windows OS timer issue).

Regards,
Tony Anecito
Founder,
MyUniPortal
http://www.myuniportal.com
The fastest Portal on the planet that uses inexpensive hardware and open 
source web (Apache) and App Server or JBoss (Tomcat embedded)

For http SOAP requests I get from all over the world from my RIA I typically 
see 0msec in Apache and I am curious what is measured elsewhere.


--- On Thu, 7/17/08, ywtsang [EMAIL PROTECTED] wrote:

 From: ywtsang [EMAIL PROTECTED]
 Subject: logging of response time
 To: users@tomcat.apache.org
 Date: Thursday, July 17, 2008, 9:33 PM
 i log the response time by the following option:
 
 %D - Time taken to process the request, in millis
 
 does this mean that the time includes the sum of:
 
 - start of request
 - application logic
 - streaming the whole response (html text) back to client
 
 ?
 
 -- 
 View this message in context:
 http://www.nabble.com/logging-of-%22response-time%22-tp18522011p18522011.html
 Sent from the Tomcat - User mailing list archive at
 Nabble.com.
 
 
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 To start a new topic, e-mail: users@tomcat.apache.org
 To unsubscribe, e-mail: [EMAIL PROTECTED]
 For additional commands, e-mail:
 [EMAIL PROTECTED]


  

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