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 <mkien...@gmail.com> wrote: > From: Mike Kienenberger <mkien...@gmail.com> > Subject: Re: JSF application very slow with HTTPS > To: "MyFaces Discussion" <users@myfaces.apache.org> > Cc: "Mark Struberg" <strub...@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 <strub...@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 <mhn4...@googlemail.com> > wrote: > > > >> From: Michael Heinen <mhn4...@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<mkien...@gmail.com> > >> wrote: > >> > > >> >> From: Mike Kienenberger<mkien...@gmail.com> > >> >> Subject: Re: JSF application very slow > with HTTPS > >> >> To: "MyFaces Discussion"<users@myfaces.apache.org> > >> >> Cc: "Michael Heinen"<mhn4...@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<mhn4...@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 > >> >>> > >> > >> > > >
