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From Bernd Bohmann <bernd.bohm...@atanion.com>
Subject Re: JSF application very slow with HTTPS
Date Tue, 12 Apr 2011 07:53:30 GMT
Hello,

maybe it is a richfaces issue see:

https://issues.apache.org/jira/browse/MYFACES-2823

Regards

Bernd

On Mon, Apr 11, 2011 at 6:42 PM, Mike Kienenberger <mkienenb@gmail.com> wrote:
> Yes, I know that this method has drawbacks, but it's still a good
> alternative in this case as he knows what methods are involved, and he
> has access to the source code so he can change it at the
> htmlTableRenderer.encodeInnerHtml. Data method.
>
> Not everyone wants to try to set up and learn YourKit, nor "evaluate"
> it or buy it or any of the other "serious" profilers.
>
> If you've already got a profiler installed and are familiar with it,
> go with that.  :)  This is a quick-and-dirty solution that's often
> worked for me.   I've got the eclipse profiler installed, and I've had
> YourKit installed before, but this is often the simplest path for me.
>
> You can have the results back from this in the time it takes to 1)
> download the h2database jar and drop it into your project, 2) change
> the code, 3) recompile the app, 4) run it.
>
> On Mon, Apr 11, 2011 at 12:31 PM, Mark Struberg <struberg@yahoo.de> wrote:
>> yea, but most of the time you
>>
>> a) don't exactly know what you r looking for
>> b) don't like to change your code
>> c) will get the the lifecycle wrappers back as 'most expensive' methods...
>>
>> LieGrue,
>> strub
>>
>> --- On Mon, 4/11/11, Mike Kienenberger <mkienenb@gmail.com> wrote:
>>
>>> From: Mike Kienenberger <mkienenb@gmail.com>
>>> Subject: Re: JSF application very slow with HTTPS
>>> To: "MyFaces Discussion" <users@myfaces.apache.org>
>>> Cc: "Mark Struberg" <struberg@yahoo.de>
>>> Date: Monday, April 11, 2011, 4:27 PM
>>> Or you can go with something a lot
>>> simpler and start with the free
>>> profiler provided in the H2Database jar.
>>>
>>> import org.h2.util;
>>> ...
>>> Profiler profiler = new Profiler();
>>> profiler.startCollecting();
>>> // application code
>>> System.out.println(profiler.getTop(3));
>>>
>>> http://www.h2database.com/html/performance.html#application_profiling
>>>
>>> For my own use, I've pulled out the three relevant classes
>>> and removed
>>> the unnecessary methods if you don't want to grab the
>>> entire package,
>>> although that's really trivial to do as well.
>>> It's about 350 lines
>>> of code total.
>>>
>>> On Mon, Apr 11, 2011 at 12:12 PM, Mark Struberg <struberg@yahoo.de>
>>> wrote:
>>> > Ah sorry, have overread that:
>>> >>> The time is spent in
>>> >>> htmlTableRenderer.encodeInnerHtml
>>> >
>>> > I'd start the application with YourKit profiler and do
>>> some profiling.
>>> >
>>> > You can get a free yourkit test license (14 days I
>>> think) for evaluation.
>>> >
>>> > LieGrue,
>>> > strub
>>> >
>>> > --- On Mon, 4/11/11, Michael Heinen <mhn4dev@googlemail.com>
>>> wrote:
>>> >
>>> >> From: Michael Heinen <mhn4dev@googlemail.com>
>>> >> Subject: Re: JSF application very slow with HTTPS
>>> >> To: "MyFaces Discussion" <users@myfaces.apache.org>
>>> >> Date: Monday, April 11, 2011, 3:45 PM
>>> >>   Fat? Well there is a lot of EL
>>> >> in this table, nearly in all cells,
>>> >> e.g. for column widths, values, styles etc.
>>> >> The EL is always hitting backing beans, some with
>>> >> additional map access.
>>> >>
>>> >> But the real problem is the poor HTTPS performance
>>> compared
>>> >> to HTTP.
>>> >> It should not be caused by the app and also not by
>>> JSF or
>>> >> Tomcat of course.
>>> >> There should be a little overhead for additional
>>> >> handshaking, but not
>>> >> for the rendering!
>>> >> Could this be caused by a buffering whereever?
>>> >>
>>> >> Mark (or anybody else), did you compare your app
>>> with http
>>> >> and https?
>>> >> Just wondering whether this is a problem only in
>>> my app.
>>> >>
>>> >> Regards,
>>> >> Michael
>>> >>
>>> >>
>>> >>
>>> >> Am 11.04.2011 17:27, schrieb Mark Struberg:
>>> >> > Btw another question: 1s local response time?
>>> How fat
>>> >> is this page?
>>> >> >
>>> >> > We have a really big page in production with
>>> 1400
>>> >> lines in a dataTable - and it renders in 450
>>> ms...
>>> >> >
>>> >> > How many back-and-forth requests do you see
>>> if you
>>> >> open firebug?
>>> >> > Do you have some EL involved which isn't
>>> hitting the
>>> >> backing bean but directly goes into the database?
>>> Something
>>> >> in this direction...
>>> >> >
>>> >> > LieGrue,
>>> >> > strub
>>> >> >
>>> >> > --- On Mon, 4/11/11, Mike Kienenberger<mkienenb@gmail.com>
>>> >> wrote:
>>> >> >
>>> >> >> From: Mike Kienenberger<mkienenb@gmail.com>
>>> >> >> Subject: Re: JSF application very slow
>>> with HTTPS
>>> >> >> To: "MyFaces Discussion"<users@myfaces.apache.org>
>>> >> >> Cc: "Michael Heinen"<mhn4dev@googlemail.com>
>>> >> >> Date: Monday, April 11, 2011, 2:20 PM
>>> >> >> I also use
>>> >> >> jetty-6.1.22.   My environment is
>>> >> almost
>>> >> >> identical to
>>> >> >> yours, give or take a minor version
>>> number.
>>> >> >>
>>> >> >> On Mon, Apr 11, 2011 at 7:49 AM, Michael
>>> >> Heinen<mhn4dev@googlemail.com>
>>> >> >> wrote:
>>> >> >>>   Hi,
>>> >> >>>
>>> >> >>> My JSF application is very slow via
>>> HTTPS.
>>> >> >>> Some parts are 15 times slower
>>> compared to
>>> >> HTTP
>>> >> >>>
>>> >> >>> I measured the response times of the
>>> xhtml
>>> >> requests
>>> >> >> with Fiddler (locally
>>> >> >>> and over network)
>>> >> >>>
>>> >> >>> Result for a very large page (512 KB)
>>> with a
>>> >> big
>>> >> >> datatable without ajax
>>> >> >>> usage:
>>> >> >>> --  local access with HTTP:  1 sec
>>> >> >>> --  local access with HTTPS: 15-16
>>> sec
>>> >> >>>
>>> >> >>> Other pages are factor 2-4 slower,
>>> with or
>>> >> without
>>> >> >> ajax.
>>> >> >>> The time is spent in
>>> >> >> htmlTableRenderer.encodeInnerHtml. Data
>>> is of
>>> >> course
>>> >> >>> available, there is no additional
>>> backend
>>> >> access.
>>> >> >>>
>>> >> >>> The simple download of xhtml files or
>>> other
>>> >> files is
>>> >> >> NOT (noticeable)
>>> >> >>> slower.
>>> >> >>> Other non JSF applications running on
>>> the same
>>> >> servers
>>> >> >> are also not slower
>>> >> >>> with HTTPS.
>>> >> >>>
>>> >> >>> Before I start profiling:
>>> >> >>> - Does anybody have an idea where I
>>> should
>>> >> look at?
>>> >> >>> - Are there any known JSF or webApp
>>> settings
>>> >> that
>>> >> >> influence https
>>> >> >>> performance?
>>> >> >>>
>>> >> >>> Environment:
>>> >> >>>   Facelets
>>> >> >>>   myFaces 1.2.9
>>> >> >>>   tomahawk12_1.1.10
>>> >> >>>   richfaces 3.3.3
>>> >> >>>   tomcat 6.0.29
>>> >> >>>   jdk 1.6.0_23
>>> >> >>>
>>> >> >>> Regards,
>>> >> >>> Michael
>>> >> >>>
>>> >>
>>> >>
>>> >
>>>
>>
>

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