caching

问题 Please clarify this weird If-Modified-Since header passed by IE9 In my ASP.NET 4.0 web app, I've got a generic handler (.ashx) that serves images stored in the DB. In the interest of efficiency, I'm handling some caching-related headers and passing cache information. I'm getting DateTime parse errors moderately frequently from trying to parse the If-Modified-Since header contents, usually from IE9. Turns out it's sending something like this: Mon, 28 Nov 2011 16:34:52 GMT; length=8799 I'm

问题 MemoryCache comes with a Default cache by default and additional named caches can be created. It seems like there might be advantages to isolating the caching of results of different processes in different instances For example, results of queries against an index could be cached in an "IndexQueryResult" cache and result of database queries in a "DatabaseQueryResult" cache. That's rather contrived but explains the principle. Does the memory pressure on one cache that results in evictions

问题 I have an infrastructure based on EclipseLink + JPA Guice Persist When I redeploy the application always I have caching problems with caching Entitys and I have to reboot the server (Oracle Weblogic 11g) .This problem is treated in a this post: https://bugs.eclipse.org/bugs/show_bug.cgi?id=326552 But, maybe is not a bug ¿?¿? ... I managed to solve the problem as follows : Originally I have centralized everything in a GuiceModule: 1.Create the module JPAPersist 2.Binding of a Initializer class

问题 Zend_Cache can be configured to cache several types of output, including the results of function calls, the results of object and static method calls, entire pages, and configuration data. Given this controller and related views how would you go with caching?From what some of you suggested here (see @marcin) I understood that clearing the whole cache for just a single comment or a post-update would be too much.How should I go for them to be cached separately? Basically I have a blog page

问题 Zend_Cache can be configured to cache several types of output, including the results of function calls, the results of object and static method calls, entire pages, and configuration data. Given this controller and related views how would you go with caching?From what some of you suggested here (see @marcin) I understood that clearing the whole cache for just a single comment or a post-update would be too much.How should I go for them to be cached separately? Basically I have a blog page

问题 Zend_Cache can be configured to cache several types of output, including the results of function calls, the results of object and static method calls, entire pages, and configuration data. Given this controller and related views how would you go with caching?From what some of you suggested here (see @marcin) I understood that clearing the whole cache for just a single comment or a post-update would be too much.How should I go for them to be cached separately? Basically I have a blog page

问题 I have a script that gets all the values of a spreadsheet and uses those values to create entries in a calendar. However, it takes too long to run and times out. It didn't used to take that long because there wasn't enough entries, but now there's enough entries that it cant finish before it times out, so I need to increase the speed. I believe the reason it runs so slow is because there's a loop that runs through every row of the spreadsheet and at the end of every loop it writes a calendar

问题 How is it possible to invalidate the whole output cache in asp .net mvc 2? 回答1: AFAIK this is not possible. You can only invalidate specific actions that might have been cached by decorating them with the [OutputCache] attribute. HttpResponse.RemoveOutputCacheItem(Url.Action("Index", "Products")); 回答2: While I don't know if there is a way to do it in code, still recycling the worker process might invalidate the server cache. If this is true then you might even do it in code by having code to

问题 I've read that space-filling curves such as the Peano curve are useful for maintaining cache-friendly data structures in a linear address space, since they maintain physical spatial locality. However, I'm not sure how to actually use them. Do any of these curves have formulas for quickly translating a linear address into (x,y) coordinates and vice-versa? Otherwise, how do I determine where in memory to look when looking up a certain pair of coordinates? An example would be very helpful. 回答1:

问题 Im using Magento EE version 1.12 with Full page cache enabled a) my product detail page is cached b) as a result my shopping cart in this page doesn't show dynamic item count c) so i am not able to show valid cart item count in my product detail page steps i followed 1) I created a block and called from header.phtml 2) trying to make that topcart.phtml block not to be cached As im a newbie in magento , i got some links for cache hole punching I followed below links but no success my file