I'm trying to figure out if I can get browsers to cache images with signed urls. What I want is to generate a new signed url for every request (same image, but with an updated signature), but have the browser not re-download it every time. So, assuming the cache-related headers are set correctly, and all of the URL is the same except f...
I need to cache a large (but variable) number of smallish (1 kilobyte to 10 megabytes) files in memory, for a C application (in a *nix environment). Since I don't want to eat all my memory, I'd like to set hard memory limit (say, 64 megabytes) and push files into a hash table with the file name as the key and dispose of the entries with ...
Hi I want a sample that does following: Database <-> Data Access + Cache <-> Business logic <-> UI so basically everything you want from database should be accessible from cache, if it's not in cache, underlying data access layer will populate if and return it otherwise returned from cache is there any disadvantage? in what scenerios t...
Hi, This thing is driving me nuts. I have a UserControl that is called WebUserControl. I need to cache this control, so I put the following in the WebUserControl.ascx: <%@ OutputCache Duration="240" VaryByParam="FeedName" %> Then I have the Default.aspx file in which I have: <div class="divInnerLeft" id="L1" runat="server"> ...
Once again, I find myself with a set of broken assumptions. The article itself is about a 10x performance gain by modifying a proven-optimal algorithm to account for virtual memory: On a modern multi-issue CPU, running at some gigahertz clock frequency, the worst-case loss is almost 10 million instructions per VM page fault. If...
After asking: http://stackoverflow.com/questions/3009740/ldap-user-data-caching-on-local-database I want to cache LDAP user data in the application local database to allow fast queries. How may I cache LDAP user data in the local database using Spring Security. ...
I am redesigning the messaging system for my app to use intel threading building blocks and am stumped trying to decide between two possible approaches. Basically, I have a sequence of message objects and for each message type, a sequence of handlers. For each message object, I apply each handler registered for that message objects type...
I'm looking for an embedded database for a silverlight application.I have found several choices like MCObjects(www.mcobject.com) and EffiProz(www.effiproz.com). Which one is most suitable as local cache? ...
I'm working on an ASP.NET app that keeps a lot of data cached. This data remains cached when I restart the app, so I have to reset IIS if I want to rerun the code that gets the data, otherwise it's just taken from the cache. Is there a way that I can automate this? ...
Hi folks, when I hit some web resource / url / web page a number of times, i get back HTTP 200 OK with the Cache-Control data decremented. Second, third (subsequent) responses are correctly decrementing, but not returning a 304 NOT MODIFED (which I thought might be expected for caching). example: < HTTP/1.1 200 OK < Date: Mon, 14 Jun ...
I have a page with a number of user controls, In one of my user controls I have a button event. I turned on output cache for the user control that has the button and did vary by control using the ID property of a hidden field control in the user control. whenever I turn on the output cache my button event doesn't fire. ...
Hey, I'm working on some old(ish) software in PHP that maintains a $cache array to reduce the number of SQL queries. I was thinking of just putting memcached in its place and I'm wondering whether or not to get rid of the internal caching. Would there still be a worthwihle performance increase if I keep the internal caching, or would me...
Is it possible to iterate the OutputCache keys? I know you can remove them individually via HttpResponse.RemoveOutputCacheItem(), but is there a way I can iterate all the keys to see what's in the collection? I searched through Object Viewer, but didn't see anything. Worst case, I can maintain my own index. Since I'm doing everything ...
I am trying to cache images which have been generated. You create a image by accessing the file by resize.php?width=x&height=y. If the image of that width and height does not exist I use imagemagick to create it. However if it does exist it is served to the visitor. The !file_exists($name) check works fine so processing is not done when...
Our website was just converted to being generated by mod_rewrite and php scripts. Images aren't caching in browsers when they seemingly should be. All images follow format: <img src="/images/header.png" /> I must avoid the script completely caching because the PHP parser needs to handle each page dynamically on each request; however,...
I would like to use getDelayed on the PHP Memcached extension but I think it's not implemented in the right way. Right now you ask for some keys and then retrieve all of them with fetch() and fetchAll(). But imagine a scenario where I need to retrieve 15 keys used in different parts of the page which I don't know in advance, but I can a...
Hi, I'm trying to achieve sticky forms without PHP. My setup is AJAX like javascript. The back/forward work fine on both IE and FF, but refresh only works on FF, not IE. Doesn't matter what cache options I use, I've even set IE's temporary files option to never check for updates, and the input value is gone after page refresh(the refr...
I have a blog built using Zend Framework, which I realize might be a bit overkill for a blog alone, but I am planning on adding other features in the future. Nevertheless, I've noticed pages could be a little speedier. I've done a basic caching method that basically captures everything in index.php (Core frontend and File backend), which...
I've built a Repository that gets user details Public Function GetUserByOpenID(ByVal openid As String) As User Implements IUserRepository.GetUserByOpenID Dim user = (From u In dc.Users Where u.OpenID = openid Select u).FirstOrDefault Return user End Function And I'd like to be able to pull those d...
Hi, Can someone tell me whether i can use the enterprise library caching library on a website which is load balanced its contained in a server farm which has 4 dedicated web servers. thanks ...