How do you find the unmanaged COM object that’s being referenced by a .NET object?
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Category Archives: Software Development
Finding the largest free block of address space
I’ve been seeing problems recently with fragmented virtual address space. During the lifetime of a process, bits and pieces of memory are allocated throughout the 2GB 32-bit address space to such an extent that large contiguous blocks of free space are no longer available. If anything subsequently requires a large block of memory (like, for [...]
Also posted in WinDbg, Windows Tagged address space, c++, perfmon, private bytes, win32, WinDbg 2 Comments
Diagnosing out of memory errors with VMMap – Part 2
(I had problems with WordPress choking on this long post, so I’ve split it into 2 parts. The first part is here. This is the second part).
Also posted in Debugging, Windows Tagged address space, heap, perfmon, private bytes Leave a comment
Diagnosing out of memory errors with VMMap
VMMap is a new tool from Mark Russinovich et al that’s very useful for diagnosing virtual memory/address space exhaustion issues. I describe it here, and give some information that should help you interpret what it reports.
Also posted in Debugging, WinDbg, Windows Tagged memory, private bytes, VMMap, win32, WinDbg 2 Comments
Visualising Black-Scholes option pricing using F# and WPF
Using F# to create simple plots of Black-Scholes option prices and greeks using WPF.
WinDbg !locks command broken
It seems that the extremely useful !locks command is broken in 6.11.1.40x, the current and previous release of WinDbg from the debugging tools for Windows.
You’ll get errors like:
0:007> !locks
NTSDEXTS: Unable to resolve ntdll!RTL_CRITICAL_SECTION_DEBUG type
NTSDEXTS: Please check your symbols
The suggested solution seems to be to roll-back to version 6.10.3.233, available from here, or you can just [...]
F# May CTP released
Well, what are you still doing here, get over to Don Syme’s blog and download it…!
IL analysis using F#
A description of using F# language features and reflection to enable basic analysis of .NET IL (intermediate language).
Installing Windows SDK breaks F# Visual Studio integration
Beware! If you install the Windows SDK – perhaps to get access to the interesting looking WPF performance tools – you’ll find that it hoses your F# Visual Studio integration. I found that it causes intellisense tooltips to stop appearing, and the integrated F# interactive to crash Visual Studio. Both of these issues are a [...]
