myfaces-users mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Mark Struberg <strub...@yahoo.de>
Subject Re: JSF application very slow with HTTPS
Date Mon, 11 Apr 2011 16:31:58 GMT
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
> >> >>>
> >>
> >>
> >
> 

Mime
View raw message