Cache A Website For Better Performance?
Apr 12, 2010I am a web designer and usually design corporate web sites which often does not require update. So I want to cache the output for one day. How can I do this?
View 4 RepliesI am a web designer and usually design corporate web sites which often does not require update. So I want to cache the output for one day. How can I do this?
View 4 RepliesI have developed a website in asp.net framework 2 . This website is being hosted in two different servers without any change in code. My issue is about the performance of these 2 sites. One website is taking much time for inserting datas to the DB (SQL server 2005). 2 websites are having different DB server.
I think the issue is for the DB server. How can we rectify the DB performance while insertion and Is there any other cause for this permance issue?
Say I need to populate 4 or 5 dropdowns w/ items from a database. Each drop down will have < 15 items in it. These items almost never change.
Now I could query the DB each time the page is accessed or I could grab the values from a custom class that would check to see if they already exist in ASP.Net's cache and only if they don't query the DB to update the cache.
It's trivial for me to write but I'm unsure if the performace would be better or not. I think it would be (although not likely anything huge).
I'm trying to add some performance counters to my asp.net website. Now, I know how to increment/decrement some custom counter I make .. but my problem is that if I get my ASP.NET website to create these counters, if they do not exist (eg. i do this check in the global.asax App start method) then add/create them.
But, it doesn't work - access to the registry is denied/forbidden.
I'm assuming this is because the asp.net process is so stripped down (for security) that u can't touch that type of thing. Therefore, i'm wondering if the only other solution is to make a quick console or winform app which does one thing -> add's the perf counters. running this as my normal logged in user would me i have admin rights, so it will work. or is there something else i can do?
I had created a web site with asp.net and sqlserver. How can i improve the my website's performance in with regard sqlserver connection?What's your mind about use pool connection? In this regard what the defualt values is set for 'Max Pool Size' and 'Min Pool Size'?What's your mind about use Asynchronous access to data? What's your mind about other ways that you think?
View 3 RepliesWhen my Application face a long-time process, i.e fetch a query (SELECT a, b, c FROM d)This query needs 10 seconds to be completed in the MSSQL Management Studio, but when the ASP.NET application try to fetch it, it refuse to return any response to any other requests made on that Server.
I am hosting my Application on VPS Server with good specifications, and I am giving this example the (SELECT a, b, c FROM d) just to tell you the issue, it can be any process, maybe processing a movie, or even fetching some data through external API that is experiencing some slow-down,or whatever.
I have almost 100 website that will update in a condition, I have a winzip archive that contains the files that replaces those websites. I want to know that
I can extract that files in a folder and then copy them to all 100 websites folders
I can extract the archive directly to 100 websites folders
which one is better in performance and less prone to errors
In my website I am using thread to perform the function which downloads the CSV from a website and parses the data into the database.
Now if I am not able to stop the thread then what could be the impact on the performance?
Also If I unknowingly start another thread then would it impact my website's performance?
I have requirement in website, where i need to provide around 60 textbox inside form.
I woud like to know whether it make performance down when i put such large count of textbox (60) in form.
Is there any alternate way to meet this requirement.
I watched old videos that suggest to test the asp.net website load using Microsoft Web Application Stress Tool. But there is a broken link to get the download. tool to test website performance?
View 2 RepliesIn my website need to display 5000+ records in gridview. So, I used custom paging for static page bar and displaying 100 records per page. In stored procedure using ROW NUMBER() keyword to retrieve specific records from the database. Even though website is running dead slow. Is there any alternate way apart from the ROW NUMBER() to increase the website performance. I followed the below article to achieve custom paging.....
View 1 RepliesIn my website for one project we have 5000+ records in sql database. If I give page size is 100 for gridview then the paze size showing 800kb in firebug net panel and it is taking 20-30 seconds to load webpage. If I give page size is 10 for gridview then the paze size showing 160kb in firebug net panel and it is taking 5-6 seconds to load webpage. If I give page size is 5for gridview then the paze size showing 130kb in firebug net panel and it is taking less than 6 seconds to load webpage. I noticed that due to heavy paze size the performance decreasing but as per my requirent the paze size should be 100 or above and the page should be load less than 2 seconds.
Note: I am using Ajax Update panels
my application is composed of several modules: a web site, and a few services that receive requests from client apps. since all these modules manipulate pretty much the same data, I would like to have the same cache for all of them. I'm using a static class to reference nHibernate's 2nd level cache (the SessionFactory object), and I've set up the web site and the web services within the same website on IIS. however, the static SessionFactory variables are different between the web site and web service.
Here is the code for the static SessionManager class:
[Code]....
I have two separate websites on the same server. One site is a forum (written in ASP Classic) where users may post information in various sections and threads etc. The other website (written in ASP.NET VB) is used for a club where users may purchase and download videos, etc. The Forum site uses caching to retain member information on each registered user. The club website has do do updates to a few of the user data fields stored on the Forum database. The problem is that I need to delete the cached information saved to cache for a specific user whenever I update the users information from the club website. Updates done on the Forum work just fine because it does delete the cache.
I have tried to access the cache from the ASP.NET club website using: Application.Contents("_mbUI-2") Which is the proper key but I get "Nothing". Since I can't access it, I can't delete it either. I guess the "Application" is separate due to the separate websites.
If I could call a page on the ASP site using xmlhttp, I could write a program to delete the cache. But, I need to call it from the code-behind, not by an event such as pressing a button and using javascript to make the http call.
I have various caches on my compiled website. However, I need to clear all these caches. Is there a way of doing this (without having to restart the server!)?
View 1 RepliesI am not sure if this is the right forum. I can not find a forum for LINQ.
I am working on an application using LINQ. Application performance is not up to par and my tests show that it is LINQ queries that are slow. I was wondering if anybody can recommend where I can find an article about optimizing LINQ performance maybe by compilation or other methods.
I have a website that i did some time ago now they request some new features and i did some changes in some javascript files, but when i publish the clients that use the IE have problems with cache so in they browser they have old version of javascript. How can i clear the client cache so when they visit website they use latest javascript files that i modify.
View 1 RepliesI am creating a service oriented application where trying to have everything using services....however there is something I am not sure of , I am having a page that calls the database at the page load...so what would be better and faster?? to call database in pageload , or to call wcf service from javascript during javascript load ??btw , I am using a repeater in the page , but I have created somekind of an engine to create the suitable html so...I'll be creating the repeaters html using the wcf and resend it back to the page If I am using a wcf service at the start.
View 1 RepliesIs it correct to implement my caching object like this in my controller :
[code]....
And I Use it like this :
[code]....
We have a wfc layer that wraps the business classes and database access and use a client that lives on the database layer. Amongst our group we are attempting to form standards. Some want to have the client call the web method and pass the page they are requesting and the page size. Pass that to the database and then page in SQL Server use RowNum.Some want to cache the full list of objects in http cache on the service tier and page in memory. They concern here is memory use on the server.
Which would be best for a medium number of users with potentially large number of records to manage (say 30K) Is it better to cache them all in memory and work from there or page at the database as the application scales?
What are the "optimal" parameters for creating an AppFabric cache when you will be storing session state in the cache? MSDN Cache-Related Commands
Powershell command line:
New-Cache [-CacheName] <String> [-Eviction <String>] [-Expirable <String>] [-Force [<SwitchParameter>]] [-NotificationsEnabled <String>] [-Secondaries <Int32>] [-TimeToLive <Int64>]
[code]...
Since I don't want my sessions to be removed unless the session has been abandoned either via code or Session Timeout...For eviction, I would think "None" and for expireable, I would think False.I have tested and calling Session.Abandon does remove the object from the cache. I have also tested to see if by extending my session, the session object in cache is also extended. This does seem to work the "correct" way.
We have a data driven ASP.NET website which has been written using the standard pattern for data caching (adapted here from MSDN):
public DataTable GetData()
{
string key = "DataTable";
object item = Cache[key] as DataTable;
[code]...
The trouble with this is that the call to GetDataFromSQL() is expensive and the use of the site is fairly high. So every five minutes, when the cache drops, the site becomes very 'sticky' while a lot of requests are waiting for the new data to be retrieved.
What we really want to happen is for the old data to remain current while new data is periodically reloaded in the background. (The fact that someone might therefore see data that is six minutes old isn't a big issue - the data isn't that time sensitive). This is something that I can write myself, but it would be useful to know if any alternative caching engines (I know names like Velocity, memcache) support this kind of scenario. Or am I missing some obvious trick with the standard ASP.NET data cache?
We are using HttpRuntime.Cache API in an ASP.NET to cache data retrieved from a database.
For this particular application, our database queries feature a LOT of parameters, so our cache keys look something like this:
table=table1;param1=somevalue1;param2=somevalue2;param3=somevalue3;param4=somevalue4;param5=somevalue5;param6=somevalue6... etc...
we have so many parameters that the cache key is several hundred characters long. is there a limit to the length of these cache keys? Internally, it is using a dictionary, so theoretically the lookup time should be constant. However, I wonder if we have potential to run into some performance/memory problem.
I have use Nhibernate in my MVC Project by me known, Nhibernate have cache on Session and Object. now, I want use HttpContext.Current.Cache (system.web) for cache data something in project. my code same that have problem, haven't it. and that's right or wrong.
View 2 RepliesI've got a web application that runs of a state server. It looks like soon it may need to distributed and there will be two web servers behind a load balancer.
This works great for session state but my next challenge is Cache
My application leverages heavily of cache. I understand ASP.Net 4.0 will be offering more here but nothing much has been said about the how too.
There are two challenges that I face
1). Each webserver will have its own copy of cache whereas it would be more efficient to put this to a third server the same as session state is put to state server.
2). The real challenge is keeping cache in sync if a simple dataset derived from the database is changed my code dumps that cache item and reloads the cache. That's all well on one webserver but webserver number two wont know to drop that particular cache item and reload it. This could cause some unexpected problems in the application.
For scenario number 2 I could attempt to do some smart coding so server number two knows to dump the cache and reload it.
My guess is someone else has already been here before and there's probably a better implementation approach rather than writing extra code.
Does anyone know how I could achieve the goal of keeping Cache in sync between multiple webservers or even better farm Cache management to another server?