As said before, I am testing with a very powerful desktop machine.
On 7/28/06, Anatole Tartakovsky <
[EMAIL PROTECTED]> wrote:
should behttp://flexblog.faratasystems.com/performance/grid_performance.html - no customization - pure UITextField default rendererhttp://flexblog.faratasystems.com/performance/grid_performance1.html - some formatting - 5 labelFunctionshttp://flexblog.faratasystems.com/performance/grid_performance2.html - run-time styles, formatting and computed expressionsChances are that it is more video card issue - as a matter of fact, I can reduce performance 3-4 times on the same machine using VMWare as it uses CPU for emulation of some GDI calls.
On 7/28/06, bhaq1972 <[EMAIL PROTECTED]> wrote:i tried your links out (btw the first 2 are pointing to the same
example). on my normal development machine (6 months old with all
the trimmings) performance is very quick as expected.
but when i tried it from an old laptop (4-5 years old) it felt like
one of my flex 1.5 datagrids....very slow and sluggish scrolling.
made me appreciate how much of a good job adobe did in flex2.
regards
bod
--- In flexcoders@yahoogroups.com, "Anatole Tartakovsky"
<[EMAIL PROTECTED]> wrote:
>
> How is the performance on your machine of the samples in my
links ? - trying
> to isolate player/setStyle performance from application code
efficiency.
> Thank you,
> Anatole
>
>
>> On 7/28/06, Pan Troglodytes <[EMAIL PROTECTED]> wrote:
> >
> > For reference, my testing was done on a dual core athlon 64
4400 with a
> > geforce 7800 gt and 2 gigs of ram. Hardware is not a limiting
factor.
> >> > On 7/28/06, Anatole Tartakovsky <[EMAIL PROTECTED]> wrote:
> >
> > > Matt,
> > > I placed typical business case to show the performance issues
based on
> > > hardware used:
> > >
> > > case 1 : basicgrid< http://flexblog.faratasystems.com/performance/grid_performance.h
tml>- no formatting or styling
> > > case 2: basic grid with typicalformatting< http://flexblog.faratasystems.com/performance/grid_perform
ance.html>- no styling
> > > case 3: typical usage of formatting andstyling< http://flexblog.faratasystems.com/performance/grid_performanc
e.html>- IMPLEMENTED VIA RUN-TIME CSS AND COMPUTED EXPRESSIONS - very
> > > straightforward code
> > >
> > > While performance is reasonable on midrange 2 year old PC, my
business
> > > laptop is very sluggish , however multimedia one with good
graphics chip and
> > > slower CPU works faster then PC.
> > >
> > > Here is the source for the business case:
> > >
> > > <?xml version="1.0" encoding="utf-8"?>
> > > <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml "
> > > xmlns="*" layout="vertical"
> > > xmlns:lib="com.theriabook.controls.*"
> > > viewSourceURL="srcview/index.html">
> > > <mx:Style>
> > > .dgHeaderStyle {
> > > textAlign:center;
> > > fontWeight : bold;
> > > backgroundAlpha:.5;
> > > }
> > > </mx:Style>
> > > <mx:Script>
> > > <![CDATA[
> > > include "Employees.inc";
> > > private function salaryColor(item:*):int{ return
item.SALARY
> > > <50000?0xff0000:0x0000ff;}
> > > ]]>
> > > </mx:Script>
> > > <lib:DataGridEx id="a" width="100%" height="100%"
> > > headerStyleName="dgHeaderStyle"
> > > dataProvider="{getEmployees()}">
> > > <lib:columns>
> > > <mx:Array>
> > > <mx:DataGridColumn dataField="EMP_LNAME" />
> > > <mx:DataGridColumn dataField="EMP_FNAME" />
> > > <lib:DataGridColumnEx
> > > dataField="DEPT_ID"
> > >
props="{{'resource':'employee','keyColumn&ap
os;:'dept_id','autoFill':'true'}}"/>
> > >
> > > <lib:DataGridColumnEx dataField="PHONE"
> > > formatString="phone" />
> > > <lib:DataGridColumnEx
dataField="BENE_DAY_CARE"
> > > itemRenderer="
com.theriabook.controls.CheckBox"
> > > rendererIsEditor="true"
editorDataField="value"
> > > textAlign="center" paddingLeft="5"
> > >
> > >
expando="{{'onValue':'Y','offValue':&ap
os;N'}}"
> > > />
> > > <lib:DataGridColumnEx dataField="SS_NUMBER"
> > > formatString="ssn" />
> > > <lib:DataGridColumnEx dataField="SALARY"
> > > formatString="currency"
> > >
> > >
styles="{{'color':salaryColor,'fontWeight':functi
on
> > > (item:*):String{ return item.SALARY > 50000?{ return
item.SALARY >
> > > 50000?'bold':'normal'} }}"
> > > />
> > > <lib:DataGridColumnEx dataField="SALARY"
> > > formatString="currency" editable="true" >
> > > <lib:styles>
> > > <mx:Object
backgroundColor="{salaryColor}"
> > > backgroundAlpha=".3"/>
> > > </lib:styles>
> > > </lib:DataGridColumnEx>
> > > <lib:DataGridColumnEx dataField="START_DATE"
> > > formatString="shortdate"/>
> > >
> > > <!--lib:DataGridColumnEx dataField="BONUS"
> > > formatString="currency"
> > >
> > > computedFields="{{'BONUS':function(data:*):Number {
return
> > > data.SALARY*.1;}}}"
> > > /-->
> > > </mx:Array>
> > > </lib:columns>
> > > </lib:DataGridEx>
> > > </mx:Application>
> > >
> > >
> > >
> > >
> > >
> > >> > > On 7/21/06, Matt Chotin <[EMAIL PROTECTED]> wrote:
> > > >
> > > > Well DataGrid scrolling performance is something that
we've spent
> > > > a lot of time tuning so I would love for us to get a full
test case that we
> > > > can look at. I saw in the thread you linked mentioning a
1600x1200 monitor,
> > > > is the DataGrid taking up most of that real estate? The
more visible rows
> > > > the slower the scrolling will be. Another thing you could
look at is in
> > > > your setter for the data comparing against the old value and
if it hasn't
> > > > changed not doing anything, it may be that it's invalidating
too often?
> > > > I'll ask one of the people who worked on performance if she
has any
> > > > thoughts.
> > > >
> > > >
> > > >
> > > > Matt
> > > >
> > > >
> > > > ------------------------------
> > > >
> > > > *From:* flexcoders@yahoogroups.com
[mailto:flexcoders@yahoogroups.com ]
> > > > *On Behalf Of *Pan Troglodytes
> > > > *Sent:* Wednesday, July 19, 2006 11:44 PM
> > > > *To: [EMAIL PROTECTED]
> > > > *Subject:* [flexcoders] performance issues
> > > >
> > > >
> > > >
> > > > Well, specifically I had a DataGrid using this for the
itemRenderer:
> > > >
> > > > package nes {
> > > >
> > > > import mx.controls.dataGridClasses.DataGridListData ;
> > > > import mx.controls.Label ;
> > > >
> > > > public class SignColorItemRenderer extends Label {
> > > > public var negativeColor:uint = 0xFF0000;
> > > > public var positiveColor:uint = 0x008000;
> > > > public var zeroColor:uint;
> > > >
> > > > override public function set data(value:Object):void {
> > > > super.data = "">> > > >
> > > > var n:Number = data[DataGridListData
(listData).dataField];
> > > > if (n < 0)
> > > > setStyle("color", negativeColor);
> > > > else if (n > 0)
> > > > setStyle("color", positiveColor);
> > > > else if (n == 0)
> > > > setStyle("color", zeroColor);
> > > > }
> > > > }
> > > > }
> > > >
> > > > I brought it up in this thread:
> > > >
> > > >
http://groups.yahoo.com/group/flexcoders/message/43243;_ylc=X3oDMTM3c
WM2MG9mBF9TAzk3MzU5NzE0BGdycElkAzEyMjg2MTY3BGdycHNwSWQDMTYwMDAwNzIwNw
Rtc2dJZAM0MzI2MwRzZWMDZnRyBHNsawN2dHBjBHN0aW1lAzExNTI4NTY4NDUEdHBjSWQ
DNDMyNDM-
> > > >
> > > > I tried LOADS of different ways to do it. I found that
anytime I put
> > > > much of any extra code in, it took away from the
responsiveness. Even
> > > > replacing the above data procedure with just a single
setStyle statement.
> > > > As I said, it's not horrible. But I definitely notice it.
> > > >
> > > > The other main thing I can point out is some sluggishness
when
> > > > resizing the browser window and having it resize/relayout
the Flex app. But
> > > > it's hard to tell how much of that is the browser and how
much is Flex.
> > > >> > > > On 7/20/06, *Matt Chotin* < [EMAIL PROTECTED] > wrote:
> > > >
> > > > Can you provide a little more detail on the performance
areas that are
> > > > hurting you? If there's a sample that demonstrates the
speed issue it may
> > > > be something we can look at.
> > > >
> > > >
> > > >
> > > > Matt
> > > >
> > > >
> > > > ------------------------------
> > > >
> > > > *From:* flexcoders@yahoogroups.com [mailto:
flexcoders@yahoogroups.com
> > > > ] *On Behalf Of *Pan Troglodytes
> > > > *Sent:* Wednesday, July 19, 2006 10:49 PM
> > > > *To:* flexcoders@yahoogroups.com
> > > > *Subject:* Re: [flexcoders] So? What are folks here actually
> > > > building...?
> > > >
> > > >
> > > >
> > > > Well, since I have never programmed in ActionScript at all,
my
> > > > projects have served a dual purpose - functional and
educational. In other
> > > > words, some of the software may never see the light of day
but that's okay -
> > > > at least it taught me how to build in Flex.
> > > >
> > > > My most "real" application has been an ad-hoc query
builder. We have
> > > > some financial reporting that it broken down into various
fields: branch,
> > > > quarter, period, that kind of thing. So I gave each field
an accordion pane
> > > > and filled it with the values for that field. Then I let
the user
> > > > drag-n-drop the values for each field into another List,
arranging them
> > > > hierarchically however they want. This then feeds a sql
statement that uses
> > > > group by and rollup to get all the data both on the detail
level and
> > > > summarized by each parent level.
> > > >
> > > > I then feed that into a DataGrid that has many custom
renderers. The
> > > > main powerhouse is the "tree" renderer. Basically, the
first column down
> > > > the page looks like a tree of those key fields. So if they
chose to report
> > > > by quarter, then branch, then manager, it would look like:
> > > >
> > > > (view the following in a fixed width font)
> > > > Gross Expenses Profit
> > > > Total X X X
> > > > 1Q-2006 X X X
> > > > Branch 1 X X X
> > > > Jane Doe X X X
> > > > John Smith X X X
> > > > Branch 2 X X X
> > > > Phil Johnson X X X
> > > > 2Q-2006 X X X
> > > > Branch 1 X X X
> > > > Jane Doe X X X
> > > > John Smith X X X
> > > > Branch 2 X X X
> > > > Phil Johnson X X X
> > > >
> > > > I put in Xs because I got tired of making up stuff. But you
get the
> > > > picture. It's basically very pivot-table-ish. It's really
the graphical
> > > > touches that seal the deal. There's icons and animations
and colors all
> > > > over the place. Not too much, but more than I could have
coded in the week
> > > > or so I've been building it. I'm an experienced Delphi user
and have to say
> > > > I'm really blown away by Flex. Delphi is RAD but Flex is
RAD^2.
> > > >
> > > > Okay, for my VERY basic advice on what I would put some
effort into.
> > > > Well, first, fix the bugs that have come out here. You have
a pretty wide
> > > > base of components already and I would like them to be very
stable. Nothing
> > > > slows a developer down more than spending hours on a problem
to only find
> > > > the bug isn't in his/her code.
> > > >
> > > > Second, I would REALLY like to see some optimization done.
I know
> > > > this is going to be hard with the dynamic, frequently
untyped nature of
> > > > Flex. But some of the code runs painfully slow for what it
does. I'm still
> > > > not 100% happy with the speed of those custom itemRenderers
in the grid.
> > > > And I stripped them down as far as they can go and it's not
because I wrote
> > > > bad code. Overall, the speed is good for an "internet
application".
> > > > Internet apps get to make excuses. But I'd like to get the
speed good
> > > > enough to rival native desktop apps. Sure, not on
everything - but at least
> > > > on GUI graphics.
> > > >
> > > > Keep up the good work. I haven't had this much fun with a
new
> > > > language in a while...
> > > >> > > > On 7/20/06, *David Mendels* < [EMAIL PROTECTED]> wrote:
> > > >
> > > >
> > > >
> > > > Hello,
> > > >
> > > >
> > > >
> > > > It has been less than a month since we shipped Flex, but I
know many
> > > > folks on this list had projects they started back in the
public beta time.
> > > > I know in many cases you may not be able to talk about what
projects you are
> > > > working on, but for those who can I'd love to get a view
onto what folks are
> > > > building. We spent a long time (almost two years) on all
the parts of the
> > > > Flex 2 product line (and the Flash Player 9) and it is very
cool to see the
> > > > traffic here, the emergence of third party conferences like
www.flexseminar.com
> > > > , the books coming out on Flex, the 60K plus downloads of
the IDE in
> > > > the public beta, but we'd love to get a sense of what real
applications
> > > > people are starting to build. The team is already working
on plans for
> > > > mid-term and longer term upgrades to Flex, and it helps us
to really
> > > > understand what people are building. So, if you are able to
talk about what
> > > > you are building please do share--I think it would be very
interesting for
> > > > the community and very valuable for us on the Flex team at
Adobe.
> > > >
> > > >
> > > >
> > > > --David
> > > >
> > > > Adobe
> > > >
> > > >
> > > >
> > > >
> > > > --
> > > > Jason
> > > >
> > > >
> > > >
> > > >
> > > > --
> > > > Jason
> > > >
> > > >
> > >
> >
> >
> > --
> > Jason
> >
> >
> >
>
--
Jason __._,_.___
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