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FPO

I was chatting with one of the perf guys last week and he mentioned something that surprised me greatly. Apparently he's having perf issues that appear to be associated with a 3rd party driver. Unfortunately, he's having problems figuring out what's going Read More...
Posted Monday, March 12, 2007 9:44 AM by LarryOsterman | 22 Comments

Why was the ability to specify an allocator during CoInitialize removed from the system?

Yesterday I talked about CoGetMalloc . One thing I didn't include was why the ability to specify an allocator was removed from the system. If you've read Raymond's blog, the answer should be obvious. I suspected it, but wasn't sure, but after I submitted Read More...
Posted Thursday, February 08, 2007 12:30 PM by LarryOsterman | 5 Comments

The Sad Story of CoGetMalloc

Ok, I admit it. I'm a geek. I'm actually one of those people who rants over the loss of the printed version of the platform SDK documentation (I still have some of the original Win32 Platform SDK documents in my office and use them regularly). One of Read More...
Posted Wednesday, February 07, 2007 10:39 AM by LarryOsterman | 11 Comments

What is AUDIODG.EXE?

One of the new audio components in Vista is a new process named audiodg.exe. If you look at it in taskmgr, the description shows "Windows Audio Device Graph Isolation", but that's not really particularly helpful when it comes to figuring out what it does. Read More...
Posted Wednesday, January 31, 2007 2:46 PM by LarryOsterman | 41 Comments

Why does the NT redirector close file handles when the network connection breaks?

Yesterday, Raymond posted an article about power suspend and it's behavior in XP and Vista . It got almost as many comments as a post in the IE blog does :). I want to write about one of the comments made to the article (by "Not Amused Again"): James Read More...
Posted Friday, February 17, 2006 10:06 AM by LarryOsterman | 29 Comments

Riffing on Raymond - Splay Trees

Raymond's post today on splay trees (brief summary: splay trees are interesting, but when you do an in-order traversal, they degrade to a linked list) reminded me of some "fun" I had with the NT 3.1 browser. The browser service is mostly dead these days, Read More...
Posted Wednesday, January 18, 2006 9:37 AM by LarryOsterman | 7 Comments

Why does Windows share the root of your drive?

Out-of-the box, a Windows system automatically shares the root of every hard drive on the machine as <drive>$ (so you get C$, D$, A$, etc). The shares are ACL'ed so that only members of the local administrative group can access them, and they're Read More...
Posted Thursday, May 26, 2005 12:45 PM by LarryOsterman | 25 Comments

Hey, why am I leaking all my BSTR's?

IMHO, every developer should have a recent copy of the debugging tools for windows package installed on their machine (it's updated regularly, so check to see if there's a newer version). One of the most useful leak tracking tools around is a wonderfully Read More...
Posted Tuesday, September 28, 2004 4:22 PM by LarryOsterman | 11 Comments

Cleaning up shared resources when a process is abnormally terminated

This post came into my suggestion box yesterday from Darren Cherneski: We have a system that has an in-memory SQL database running in shared memory that is created with CreateFileMapping(). Processes start up, attach to it via a DLL, do some queries, Read More...
Posted Friday, September 24, 2004 4:53 PM by LarryOsterman | 16 Comments
 
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