Defrag Tools: #7 - VMMap

Video format

Option selected may change based on video formats available and browser capability.

Auto

Use our suggested format for this video.

Smooth Streaming

Adaptive bitrate streaming - little buffering but lower video quality at times of low bandwidth. Silverlight 5 required

Progressive

Traditional buffered video format. Silverlight 5 required

HTML5

For browsers that support H.264 MP4 or WebM video playback such as:
IE9+, Firefox 4+, Chrome 5+, or Safari 4+.

Flash

For browsers that have the Adobe Flash Player plugin installed.

In this episode of Defrag Tools, Andrew and I walk you through Sysinternals VMMap. VMMap allows you to see how the Virtual Memory of a process is being used. You can see how much is used, for what purpose it is being used, and if there has been any memory leaks. Like last week with RAMMap, we cover some Memory Management theory to understand the data in VMMap.

Resources:
Sysinternals VMMap
'Mysteries of Memory Management Revealed' talk [Part 1, Part 2]
Sysinternals Administrator's Reference - [Amazon]

Timeline:
[01:32] - Bar Graphs
[02:58] - Committed, Reserved or Free
[03:35] - Shared Memory and Copy on Write
[05:35] - Memory Types
[09:06] - CPU Addressing Limit (~44bits)
[10:17] - Manual Refresh (F5) and Difference (Ctrl-D)
[11:49] - 'Image' entries
[14:55] - Menus
[17:33] - Timeline... First look
[18:30] - Symbols
[19:30] - Tracing an application from launch
[21:19] - Timeline... Second look
[22:58] - Tracing an application from launch (2nd attempt)
[24:15] - Application Symbol and Source Paths
[25:50] - Source code from a Stack
[27:07] - Summary

Follow the Discussion

Oops, something didn't work.

Try again?

Getting "follow" information

Stop following these comments

Start following these comments

Removing your "follow"

Setting up your "follow"

Subscribe to this comments

Follow
Oops, something didn't work.

Try again?

Sign In to be begin to follow these comments

What does this mean?
Following an item on Channel 9 allows you to watch for new content and comments that you are interested in. You need to be signed in to Channel 9 to use this feature.

Getting "follow" information

Stop following these comments

Start following these comments

What does this mean?
Following an item on Channel 9 allows you to watch for new content and comments that you are interested in and view them all on your notifications page.

Removing your "follow"

Setting up your "follow"

Did you know you can
sign up for email notifications?
- Subscribe to this comments

Roger

Sep 11, 2012 at 10:05 PM

Hey Andrew, Where did you get that great t-shirt ?
windev Andrew Richards

Sep 15, 2012 at 8:10 AM

@Roger: They all come from the Microsoft Company Store (the shop on Redmond campus, as opposed to the retail shops we now have). You'll have to come visit campus!
Geekydev26

Oct 11, 2012 at 10:05 PM

Excellent presentation, I was using the vmmap earlier today to troubleshoot a memory leak issue and was overwhelmed with the stats. This makes it clear. Thank you!

Remove this comment

Remove this thread

Comments Closed

Comments have been closed since this content was published more than 30 days ago, but if you'd like to continue the conversation, please create a new thread in our Forums,
or Contact Us and let us know.