Databases
StackOverflow2013
Postsdbo
POPerformance Impact of the Global Assembly Cache
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POPerformance Impact of the Global Assembly Cache
    primarykey
    data
    text
    <p>Apologies for the long-winded nature of this question. <strong>TL;DR: jump to the last paragraph</strong>.</p> <p>Been scratching my head about this for a while now and cannot think of a way to test my theory that <strong>multiple copies of the same DLL introduce a performance overhead</strong>. One of our servers have 20-30 pieces of in-house analysis software that references a monolithic kernel that handles <em>Business Logic and Data-Access</em> to our central database. The <strong>/bin</strong> directory for each application has a local copy of this ~5MB DLL stored within it, which presumably* gets loaded into memory when each application is first run. Probably not a big deal now, but when we get to 100+ (planned) agents running in this manner I start to hear alarm bells.</p> <p>I've read several articles online (e.g: <a href="http://www.codeproject.com/Articles/4352/Demystifying-the-NET-Global-Assembly-Cache" rel="nofollow">http://www.codeproject.com/Articles/4352/Demystifying-the-NET-Global-Assembly-Cache</a>) which talk about the security/integrity benefits of deploying common libraries in the <strong>.NET GAC</strong>, but nothing touches on the subject of performance, the only sure-fire topic that will get upper management's interest.</p> <p>What I want to know is, when a Global Assembly is referenced in a project, does it share the same library instance as other consumer applications, or does an application simply load everything it needs into its own, separate area at runtime?</p>
    singulars
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PTQuestion
    1. USleppie
    1. USRichard A.
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. VO
      singulars
      1. POPerformance Impact of the Global Assembly Cache
      1. USDimi Toulakis
      1. VTFavorite
    2. VO
      singulars
      1. POPerformance Impact of the Global Assembly Cache
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. POPerformance Impact of the Global Assembly Cache
      1. USleppie
      1. VTFavorite
    1. COThe only possible benefit is that the same loaded assembly can be used and thus reduce some memory. I know the base class libraries do this in .NET 4, but not sure exactly how one sets that up.
      singulars
      1. POPerformance Impact of the Global Assembly Cache
      1. USleppie
    2. COThat's exactly what I'm trying to ascertain! If two apps load the same version of an assembly in parallel, that feels inefficient. What I don't know is whether the GAC solves this specific problem...
      singulars
      1. POPerformance Impact of the Global Assembly Cache
      1. USRichard A.
    3. COFrom what I can see in Process Explorer, the assembly needs a `DomainNeutral` flags.
      singulars
      1. POPerformance Impact of the Global Assembly Cache
      1. USleppie
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload