Found performance issues in a business class that I was using, in particular reading data.
A fair bit of the data being read was the same across multiple instances, so determined .net caching may make sense.
There is a built in .Net cache, that I was able to make use of within my class
Key sections of how to do this are below:
In the class init (or, at any point, before use), make sure it’s filled in:
Then, to use:
// Keep a static version of the cache, and initialize it to nullprivate static System.Web.Caching.Cache cache = null;// Note that even if you are running through ASP, the HttpContext.Current may NOT be populated, hence the HttpRuntime logicif (null == cache){ if (null == System.Web.HttpContext.Current) { cache = System.Web.HttpRuntime.Cache; } else { cache = System.Web.HttpContext.Current.Cache; }}<SOMETYPE> retval = null;// Create a unique key, to see if it's already in therestring cachKey = string.Format("{0}:{1}",KeyValues, "<SOMETYPE>" );retval = cache[cachKey] as <SOMETYPE>;if (null == retval){ // Load business object here, in slow-ish code retval = new <SOMETYPE>(); if (null != retval) { // Got a real value, add it to the cache // This logic is to add with a 1 minute time span, so if it's not used within a minute, it will leave the cache. // It may also leave based on memory constraints (Final parameter, for priority) cache.Add(cachKey, retval, null, DateTime.MaxValue, new TimeSpan(0, 1, 0), System.Web.Caching.CacheItemPriority.Normal, null); }}Reference links, MSDN
