Hope get your helps.
On Thu, Mar 26, 2009 at 1:14 AM, Samuel <samuel.yh...@gmail.com> wrote:
> supplement more information on the issue.
>
> $('.words') have html data, ie, this node is not empty, so it must cost
> some time to remove the children.
>
> I made tens of tests, and the average of data() function time is around
> 500ms, which must be too high.
>
> It's possible for me to use a iframe to process this if load() usually
> consume so much time. the iframe costs around 120ms, which time for
> ajax(get) in jquery is around 100ms. so only another 20ms used for redering
> css in iframe without js codes added, which might cost a little more loading
> and examining time.
>
> I need to treat the time as a very critical factor, so there is no
> negotiation on the time.
>
> Any suggestion on how to improve the speed is hugely expected, but your
> suggestions are iframe are also strikingly hoped.
>
> Thanks again.
>
>
>
> On Thu, Mar 26, 2009 at 12:42 AM, Samuel <samuel.yh...@gmail.com> wrote:
>
>> Hi,
>>
>> recently I changed my ajax returned content format to html pieces, using a
>> load() function with an expect of time decreasing used for dom manipulation.
>>
>> On the contract, it could be even longer than the previous xml processing
>> time.
>>
>> After a debugging with firebug, I found the function data() consumes most
>> of time, 90% of the total one. Here's a quick illustration:
>>
>> data()16585.59%457.185ms457.185ms 2.771ms0.007ms11.215msjquery.js (line
>> 658)ajax() 12.86%15.267ms17.361ms17.361ms17.361ms17.361msjquery.js (line
>> 2583) fix()11.89%10.122ms10.122ms10.122ms10.122ms 10.122msjquery.js (line
>> 2092)merge() 291.6%8.554ms8.554ms0.295ms0.003ms6.079msjquery.js (line
>> 1155) classFilter()61.5%8.008ms8.008ms1.335ms 0.012ms4.04msjquery.js
>> (line 1657)remove() 30.85%4.524ms451.542ms150.514ms7.582ms332.348msjquery.js
>> (line 1310) remove()710.8%4.268ms428.967ms6.042ms 6.166ms7.32msjquery.js
>> (line 1908)(?)() 20.68%3.633ms4.378ms2.189ms0.116ms4.262msjquery.js (line
>> 947) find()140.52%2.751ms19.985ms1.428ms0.14ms 10.527msjquery.js (line
>> 1464)append() 50.35%1.843ms1.843ms0.369ms0.04ms1.186msjquery.js (line
>> 237) removeData()1060.34%1.793ms1.793ms0.017ms 0.011ms0.318msjquery.js
>> (line 684)init() 580.32%1.711ms24.058ms0.415ms0ms10.864ms
>> data() function consumed as much as 85% of time, strikingly beyond of my
>> expectation which should be less than 100ms.
>>
>> some code:
>>
>>
>> renderLearning=function(nextUrl,node) {
>>
>> $('.words').load(nextUrl,function () {
>>
>> var word=$('#words h1').text();
>> $('#next_word').click(function () {
>> renderLearning($('#next_word').attr('href'));
>> return false;
>> })
>> $('#prev_word').click(function () {
>> renderLearning($('#prev_word').attr('href'));
>> return false;
>> })
>> })
>> }
>>
>> your helps are highly appreciated. Thanks very much.
>>
>> Regards,
>> --
>> Samuel(吴焱红)
>> Blog:http://wuyanhong.blogspot.com
>>
>
>
>
> --
> Samuel(吴焱红)
> Blog:http://wuyanhong.blogspot.com
>
--
Samuel(吴焱红)
Blog:http://wuyanhong.blogspot.com
