.NET Blog

Large Object Heap

maoni April 19, 2006 Apr 19, 2006 04/19/06

LOH (Large Object Heap) contains objects that are 85,000 bytes or bigger (there’s also some objects that are less than 85,000 bytes that are allocated on the LOH by the runtime itself but usually they are very small and we’ll ignore them for this discussion).   The way LOH is implemented changed dramatically from 1.0 to 1.1. In 1.0 ...

Workstation GC for server applications?

maoni March 1, 2006 Mar 1, 2006 03/1/06

In Using GC Efficiently – Part 2 I talked about different flavors of GC that exist in the CLR and how you choose which flavor is good for your applications, and I said that the Server GC flavor is designed for server applications. As with any performance tuning there are always exceptions – there’s no one-rule-fits-all. Recently I worked...

Thank you all for your comments!

maoni February 28, 2006 Feb 28, 2006 02/28/06

I will write about the things you asked in my last blog entry's comments in the next few blog entries...

What do you want to know?

maoni January 9, 2006 Jan 9, 2006 01/9/06

In my previous Using GC Efficiently entries I've basically covered all the big areas of GC in the CLR. There are of course a lot of things to write about GC but I want to keep GC users as my target audience, not GC designers/implementors. So I would really like to hear from you - our customers of the .NET Framework - if you have ...

So, what’s new in the CLR 2.0 GC?

maoni October 4, 2005 Oct 4, 2005 10/4/05

Certainly that’s one of the most frequently asked questions I get (at the PDC too!). So since PDC already happened I can tell the rest of you about the new stuff happened in GC in CLR 2.0. The slides can be downloaded here. And I will be referring to some of the slides. I must apologize for your having to click on the link to see the slide ...

GC talk at the 2005 PDC

maoni July 27, 2005 Jul 27, 2005 07/27/05

I will be giving a GC talk at the PDC this September. This talk is to give you a close up view of the CLR GC so I hope to see all you hard core .NET developers there! I will talk about some internal details of generations, allocations, different flavors of GC and fragmentation (what we have done in the GC and what you can do in your ...

Using GC Efficiently – Part 4

maoni May 6, 2005 May 6, 2005 05/6/05

In this article I’ll talk about things you want to look for when you look at the managed heap in your applications to determine if you have a healthy heap. I’ll touch on some topics related to large heaps and the implications you want to be aware of when you have an application that maintains or has potential for the need to maintain a ...

Using GC Efficiently – Part 3

maoni December 19, 2004 Dec 19, 2004 12/19/04

In this article I’ll talk about pinning and weak references – stuff related to GC handles.   (I was planning on talking about finalization in this part of the “Using GC Efficiently” series but since I already covered it in pretty much detail in one of my previous blog entries I won’t repeat it here. Feel free to ask if you have ...

Tools that help diagnose managed memory related issues

maoni November 8, 2004 Nov 8, 2004 11/8/04

I was writing an internal wiki page on performance and thought this info is useful to many external readers as well so here it goes. vadump is a good start. It’s an mstools tool – meaning you can find it on your NT CD under bin\mstools. You can take a snapshot of the process and see if the GC heap is an issue or not. It was created a long ...

Clearing up some confusion over finalization and other areas in GC

maoni November 4, 2004 Nov 4, 2004 11/4/04

In the WinDev conference that I just went to, there seems to be some confusion over finalization (such as why it even exists and etc) and other areas. I hope the following will clear up that confusion. If not, let me know.   Finalization   1)      Why we have finalization   Finalization is necessary ...