Memory folding

[lakr1]

Hello,

I was watching an really interesting recording of Vance Morrison at Channel 9 (http://channel9.msdn.com/posts/NET-45-V ... provements) where he was talking about a new tool that was going to be able to fold all those string, object arrays that always are at the top of a most used type of objects into its owning object. That would be a really nice feature in .Net Memory Profiler aswell.

Please watch the video to get a better explenation.

Regards
Lars Krog-Jensen

[Andreas Suurkuusk]

As far as I understand, the folding is the same as the held instances/bytes presented in .NET Memory Profiler. This value is currently not presented in the Overview, but you can see it in the Type and Filter details. If you select the filter "All instances and allocations", you can then sort by "Max held bytes". This will give you information about the instances with the highest amount of "folded" bytes (see screenshot).

Max held bytes

maxheldbytes.png (58.25 KiB) Viewed 15149 times

One thing that is missing in .NET Memory Profiler is "combined held bytes", e.g. the total held bytes for all instances of a specific type. Since held instances will overlap, it's not possible to just sum the held bytes values, it must be calculated for all involved instances at once. This is something that will be included in the next version.

For more information about held instances/bytes, see the online documentation.

[marry9091]

Nice post ... thanks 4 this informative post .... keep it up