Category Archives: Faster Sitecore

Performance crime: Params

You might heard params are evil. Have you ever seen the performance bill for that? How to find out where params are used? Memory allocation report shows all allocations, we’ll start from here: Method with params creates an array behind the scenes, so hunting for object[]: IL code proves sad truth – array is alwaysContinue reading “Performance crime: Params”

Case study: polluted reports

Agenda Analytics reports have suspicious statistics with lower conversion rates compared to other systems. Can we find out why? It seem that healthy data is diluted with junk/empty interactions with no value. We assume robot/crawlers activity gets recorded. Is there any OOB protection in Sitecore? Filter out robots by user agents Sitecore blacklists robots viaContinue reading “Case study: polluted reports”

Performance crime: config to kill performance

Would you as a developer allow a setting that can make system 15 550 times slower? I’ve received a few memory dumps with high CPU; each scavenges AccessResultCache: How big is the cache so that every snapshot contains the operation? Detecting cache size from the snapshot A ClrMD code snippet locates objects in Sitecore.Caching.Generics.Cache namespaceContinue reading “Performance crime: config to kill performance”