What about profiling or at least adding some log statements to see exactly where the time is spent?
If it is in JSF rendering: I do not render any (ajax) command links in datatables or lists anymore. Instead of this I place one commandlink for each action before the table which is called via javascript. This can reduce the size of the generated html, render time and network traffic significantly. Just check the rendered html to see whether this is an option for you. Michael From: Shasi Mitra Yarram [mailto:shasimi...@yahoo.com] Sent: Donnerstag, 29. Januar 2009 08:49 To: MyFaces Discussion Subject: Re: Data table is taking long time to render Hi David- We use ibatis,it takes connections from pool only and we have simple select queries. It returns 5000 records out of which we filter(filtering part is taken care by business classes) and show atmost 60 records on the page.Each record is a commandLink. And i am using t:dataTable with preserveDataModel="true". Even if i remove this attribute i don see much difference. I can see that there's a siginificant decrease in the response time if i use struts. But as jsf is giving more components and also faster to develop we don want to lose the opportunity of using it in our application. But if the performance is not upto the mark, clients insist us to use Struts or Spring web mvc. Also we have very less time to decide on which framework to use :-( We even followed all the performance improvement measures given in myfaces wiki..Any suggestions to my problem? Concurrent users may be atmost 1000. --- On Thu, 29/1/09, David Griffiths <david_griffi...@shaw.ca> wrote: From: David Griffiths <david_griffi...@shaw.ca> Subject: Re: Data table is taking long time to render To: "MyFaces Discussion" <users@myfaces.apache.org> Date: Thursday, 29 January, 2009, 5:43 AM Actually, he just said a million users - nothing about concurrent. Is this wired up to a database? Is a database connection being opened for each user, or is it a connection pool? What does the query look like? How many rows on average are you asking the data table to render? I guess I am asking if you are 100% sure it's JSF, or if maybe it's got to do with some other aspect of the application. There are parts of an application when, for performance reasons, you have to leave the high-level tools (JSF, Hibernate, Spring) and code lower to the silicon. Every Hibernate application I've worked on has had SQL over a plain JDBC connection for performance reasons. David Richard Yee wrote: > What kind of server and how many are you running on? How many CPUs and > how much memory? How are you testing it? You might have to tune your > database and # of database connections. A million concurrent users is > pretty unrealistic. > > -R > > On Wed, Jan 28, 2009 at 12:02 PM, Shasi Mitra Yarram > <shasimi...@yahoo.com> wrote: > >> Hi all, >> we are designing an application which will have atleast 1 million users. As >> part of POC we have developed a module with JSF and Spring. Now when we run >> it with 30 -40 users the page with datatable is taking <5 secs to render. >> But if we increase the number of users say 100 its taking more than 30 >> seconds. As we have not yet started coding we need to decide whether to go >> with JSF or use struts..Any help is greatly appreciated..I heard and can see >> too that performance of JSF is pretty slow although the development time is >> fast.. >> >> ________________________________ >> Add more friends to your messenger and enjoy! Invite them now. >> > > ________________________________ Add more friends to your messenger and enjoy! Invite them now. <http://in.rd.yahoo.com/tagline_messenger_6/*http:/messenger.yahoo.com/invite/>
