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October 2004 - Posts

Friday, October 29, 2004 8:32 PM

FileStream internal buffer and some non-intuitive behavior [Ravi Krishnaswamy]

I recently came across a bug in FileStream’s internal buffer where the behavior is non-intuitive, so I thought I would discuss it. Filestream uses one internal buffer for both reading and writing (scary but memory efficient). Unfortunately, this means
Posted by BCLTeam | 2 Comments
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Friday, October 29, 2004 6:24 PM

PerformanceCounters: single instance, multi-instance and WMI [David Gutierrez]

Performance counter categories come in one of two modes: single instance and multi-instance. If you want your category to be visible through WMI, it's important to know the difference. A single instance category has only one machine wide value for each
Posted by BCLTeam | 0 Comments
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Monday, October 18, 2004 6:16 PM

ResourceManager & new optimizations for MemoryStream & byte[] [Brian Grunkemeyer]

With Whidbey Beta 1, we've done some performance optimizations for Streams & byte[]'s stored in .resources files. The optimizations for byte[]'s are the relatively obvious ones - don't use serialization, etc. The interesting change happened for MemoryStream.
Posted by BCLTeam | 0 Comments
Sunday, October 17, 2004 3:35 PM

Number Formatting in .NET [Kit George]

We get an ongoing number of questions about formatting numbers in .NET. The documentation seems to be notoriously difficult to find. I thought I'd give a quick overview here, with a sample. First note for future reference: to find the write page in the
Posted by BCLTeam | 8 Comments
Friday, October 15, 2004 8:01 PM

Specification for Nullable [Kit George]

I thought I'd make the Nullable specification available to everyone, for reference, and in order to allow you to ask any questions/issues. This is about to go through an ECMA review as well, so it should be interesting to see what their issues/comments
Posted by BCLTeam | 8 Comments
Tuesday, October 12, 2004 4:50 PM

Normalized paths are tricky [Brian Grunkemeyer]

A customer recently asked how to compare to see whether two paths refer to the same file, and he wanted to do this using a canonical path name. This turns out to be a non-trivial problem. Instead of talking about canonical path names which are somewhat
Posted by BCLTeam | 4 Comments
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Monday, October 11, 2004 9:05 PM

SerialStream synchronous/asynchronous IO perf tweaks [Ravi Krishnaswamy]

In NT, System.IO.Ports.SerialStream synchronous Read()/Write() operations are done asynchronously. That is, for every Read() operation a BeginRead() is issued on a thread-pool thread and an immediate call to EndRead() waits for the operation to complete,
Posted by BCLTeam | 1 Comments
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Friday, October 08, 2004 9:17 PM

Some meeting notes [Kit George]

All, thought I would post some notes from a recent meeting we had with the WebData team. This is in relation to a Tree class they have created internally in their namespaces, and what we should consider doing with it. The reference to 'our redblack' tree
Posted by BCLTeam | 8 Comments
Friday, October 08, 2004 7:15 PM

Cleaning out the attic [Kit George]

Well all, I haven't posted for a couple of weeks, and I thought I would share some fun with you, from an exercise we're going through to clean up the libraries before we ship. Of course, we're pretty aggressive about ensuring that we get a bunch of clean
Posted by BCLTeam | 4 Comments
 
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