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Posted to users@tomcat.apache.org by krip pane <jk...@yahoo.com> on 2003/05/13 21:52:35 UTC
tomcat performance troubleshooting
All,
I'm running tomcat 4.1.18 as a standalone webserver
(solaris 2.8), which has a application server and a
datbase server at the backend.
user opens a session -> logs into webserver (business
logic resides on the application server) -> user runs
a query against db server
I would like to measure how long a particular request
takes roundtrip from the web server to app server and
back.
Will changing the debug value to 9 in the connector
class name give me enough information? Will it log in
the access log file or somewhere else?
Are there any tools to do this kind of testing?
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Re: tomcat performance troubleshooting
Posted by krip pane <jk...@yahoo.com>.
Guys,
Another question related to this, does tomcat do any
kind of packet management before handing it off to tcp
and below layers. Is there a way to find out packet
size exchange between tomcat and the OS.
Situation is :
Our network folks are seeing exactly 1460b followed by
582b pkts every time between the web server (tomcat)
qnd the client browser. They're interested in finding
out if tomcat is doing the pkt mgt or is it just
handing off what the application gives it.
TIA
--- Steven Shand <st...@intrallect.com> wrote:
> easiest, most flexible way of achieving this is to
> implement a filter...
>
> in the filter get current time, call
> chain.doFilter(), when that
> returns, get current time.
>
> The difference is the time taken to deal with the
> request without
> taking into account the network overhead.
>
> Another Good Thing(tm) about this is that when
> deploying, you can just
> leave out that filter..
>
> Steven Shand.
>
> On Tuesday, May 13, 2003, at 08:52 pm, krip pane
> wrote:
>
> > All,
> >
> > I'm running tomcat 4.1.18 as a standalone
> webserver
> > (solaris 2.8), which has a application server and
> a
> > datbase server at the backend.
> >
> > user opens a session -> logs into webserver
> (business
> > logic resides on the application server) -> user
> runs
> > a query against db server
> >
> > I would like to measure how long a particular
> request
> > takes roundtrip from the web server to app server
> and
> > back.
> >
> > Will changing the debug value to 9 in the
> connector
> > class name give me enough information? Will it log
> in
> > the access log file or somewhere else?
> > Are there any tools to do this kind of testing?
> >
> >
> >
> > __________________________________
> > Do you Yahoo!?
> > The New Yahoo! Search - Faster. Easier. Bingo.
> > http://search.yahoo.com
> >
> >
>
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> > To unsubscribe, e-mail:
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> > For additional commands, e-mail:
> tomcat-user-help@jakarta.apache.org
> >
>
>
>
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Re: tomcat performance troubleshooting
Posted by Steven Shand <st...@intrallect.com>.
easiest, most flexible way of achieving this is to implement a filter...
in the filter get current time, call chain.doFilter(), when that
returns, get current time.
The difference is the time taken to deal with the request without
taking into account the network overhead.
Another Good Thing(tm) about this is that when deploying, you can just
leave out that filter..
Steven Shand.
On Tuesday, May 13, 2003, at 08:52 pm, krip pane wrote:
> All,
>
> I'm running tomcat 4.1.18 as a standalone webserver
> (solaris 2.8), which has a application server and a
> datbase server at the backend.
>
> user opens a session -> logs into webserver (business
> logic resides on the application server) -> user runs
> a query against db server
>
> I would like to measure how long a particular request
> takes roundtrip from the web server to app server and
> back.
>
> Will changing the debug value to 9 in the connector
> class name give me enough information? Will it log in
> the access log file or somewhere else?
> Are there any tools to do this kind of testing?
>
>
>
> __________________________________
> Do you Yahoo!?
> The New Yahoo! Search - Faster. Easier. Bingo.
> http://search.yahoo.com
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: tomcat-user-unsubscribe@jakarta.apache.org
> For additional commands, e-mail: tomcat-user-help@jakarta.apache.org
>
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