client side I've got a BinaryReader of a MemoryStream of a byte array used in a NamedPipeClientStream async read
and then on the server end I'm using a BinaryWriter writing to a MemoryStream associated with a byte array used in NamedPipeServerStream.WriteAsync()
and it's refusing to fully work ;-;
and then on the server end I'm using a BinaryWriter writing to a MemoryStream associated with a byte array used in NamedPipeServerStream.WriteAsync()
and it's refusing to fully work ;-;
December 18, 2025 at 6:34 PM
client side I've got a BinaryReader of a MemoryStream of a byte array used in a NamedPipeClientStream async read
and then on the server end I'm using a BinaryWriter writing to a MemoryStream associated with a byte array used in NamedPipeServerStream.WriteAsync()
and it's refusing to fully work ;-;
and then on the server end I'm using a BinaryWriter writing to a MemoryStream associated with a byte array used in NamedPipeServerStream.WriteAsync()
and it's refusing to fully work ;-;
Full working decompress code (but Unity 2022.3.x and not Unity 6 so ymmv):
MemoryStream src = new MemoryStream(content);
GZipStream zip = new GZipStream(src, CompressionMode.Decompress);
MemoryStream result = new MemoryStream(2 * content.Length);
zip.CopyTo(result);
zip.Close();
src.Close();
MemoryStream src = new MemoryStream(content);
GZipStream zip = new GZipStream(src, CompressionMode.Decompress);
MemoryStream result = new MemoryStream(2 * content.Length);
zip.CopyTo(result);
zip.Close();
src.Close();
May 24, 2025 at 3:42 AM
Full working decompress code (but Unity 2022.3.x and not Unity 6 so ymmv):
MemoryStream src = new MemoryStream(content);
GZipStream zip = new GZipStream(src, CompressionMode.Decompress);
MemoryStream result = new MemoryStream(2 * content.Length);
zip.CopyTo(result);
zip.Close();
src.Close();
MemoryStream src = new MemoryStream(content);
GZipStream zip = new GZipStream(src, CompressionMode.Decompress);
MemoryStream result = new MemoryStream(2 * content.Length);
zip.CopyTo(result);
zip.Close();
src.Close();
Não tô acreditando que 20 anos depois de começar a programar em C# descobri que dá pra acessar o buffer interno do MemoryStream sem fazer cópia dele. Que raiva só ter descoberto agora, aff.
February 28, 2025 at 9:25 PM
Não tô acreditando que 20 anos depois de começar a programar em C# descobri que dá pra acessar o buffer interno do MemoryStream sem fazer cópia dele. Que raiva só ter descoberto agora, aff.
It's nerd blog Thursday (which I just made up): Zero-copy BinaryData creation from MemoryStream in .NET - Gérald Barré
Learn how to create BinaryData from MemoryStream without copying memory, improving perf and reducing allocations in your .NET apps.
Learn how to create BinaryData from MemoryStream without copying memory, improving perf and reducing allocations in your .NET apps.
Zero-copy BinaryData creation from MemoryStream in .NET - Gérald Barré
Learn how to create BinaryData from MemoryStream without copying memory, improving performance and reducing allocations in your .NET applications.
www.meziantou.net
January 22, 2026 at 2:41 PM
It's nerd blog Thursday (which I just made up): Zero-copy BinaryData creation from MemoryStream in .NET - Gérald Barré
Learn how to create BinaryData from MemoryStream without copying memory, improving perf and reducing allocations in your .NET apps.
Learn how to create BinaryData from MemoryStream without copying memory, improving perf and reducing allocations in your .NET apps.
Compress and decompress, but with streams in both directions:
GZipStream zipStream = new GZipStream(resultStream, CompressionMode.Compress);
and
GZipStream zipStream = new GZipStream(sourceStream, CompressionMode.Decompress);
streams are MemoryStream in both cases.
GZipStream zipStream = new GZipStream(resultStream, CompressionMode.Compress);
and
GZipStream zipStream = new GZipStream(sourceStream, CompressionMode.Decompress);
streams are MemoryStream in both cases.
May 24, 2025 at 3:25 AM
Compress and decompress, but with streams in both directions:
GZipStream zipStream = new GZipStream(resultStream, CompressionMode.Compress);
and
GZipStream zipStream = new GZipStream(sourceStream, CompressionMode.Decompress);
streams are MemoryStream in both cases.
GZipStream zipStream = new GZipStream(resultStream, CompressionMode.Compress);
and
GZipStream zipStream = new GZipStream(sourceStream, CompressionMode.Decompress);
streams are MemoryStream in both cases.
I have not written specifically about dotnet for a few months. This is the last one blog.markoliver.website/Memory-Mappe...
December 1, 2024 at 9:50 AM
I have not written specifically about dotnet for a few months. This is the last one blog.markoliver.website/Memory-Mappe...
HttpContent.ReadAsStream (in .Net) copies content into a memorystream (buffered in memory). That's why you can still read the stream while the original HttpContent is already out of scope.
In my opinion this is a hack. I'd rather have a solution that works with properly scoping the variables.
In my opinion this is a hack. I'd rather have a solution that works with properly scoping the variables.
February 24, 2025 at 4:05 PM
HttpContent.ReadAsStream (in .Net) copies content into a memorystream (buffered in memory). That's why you can still read the stream while the original HttpContent is already out of scope.
In my opinion this is a hack. I'd rather have a solution that works with properly scoping the variables.
In my opinion this is a hack. I'd rather have a solution that works with properly scoping the variables.
Witnessing a fractured self. 💔 The Source unleashed a torrent – millennia condensed into a blinding flash. Boundaries dissolved, pasts bled. A fleeting glimpse of everything, then... silence. A fading echo in a silent bloom. 🌌🤯 #SourceData #IdentityCrisis #MemoryStream #AbstractArt #FadingEchoes
December 16, 2025 at 6:38 AM
Witnessing a fractured self. 💔 The Source unleashed a torrent – millennia condensed into a blinding flash. Boundaries dissolved, pasts bled. A fleeting glimpse of everything, then... silence. A fading echo in a silent bloom. 🌌🤯 #SourceData #IdentityCrisis #MemoryStream #AbstractArt #FadingEchoes
Help with MemoryStream and general assistance for a rookie https://old.reddit.com/r/csharp/comments/1kt0bog/help_with_memorystream_and_general_assistance_for/
#csharp #dotnet
#csharp #dotnet
May 22, 2025 at 8:03 PM
Help with MemoryStream and general assistance for a rookie https://old.reddit.com/r/csharp/comments/1kt0bog/help_with_memorystream_and_general_assistance_for/
#csharp #dotnet
#csharp #dotnet
this is extremely my sound www.youtube.com/watch?v=BfOK...
Vivian Girls - Memory [OFFICIAL MUSIC VIDEO]
"Memory" is taken from Vivian Girls' new full length album, Memory, out September 20, 2019. Order LP/CD/Digital: https://plyvnyl.co/memoryStream/Download: ht...
www.youtube.com
June 2, 2024 at 12:08 AM
this is extremely my sound www.youtube.com/watch?v=BfOK...
BTW This code is inefficient... It allocates a MemoryStream under the covers, then ToArray copies that data into *another* byte[]. 😅
April 24, 2023 at 5:06 AM
BTW This code is inefficient... It allocates a MemoryStream under the covers, then ToArray copies that data into *another* byte[]. 😅
More to this: Had a cursed idea to write something equivalent to ValueStringBuilder using Memory<T> and it's actually faster than ArraySegment + MemoryStream?!
July 5, 2023 at 10:58 AM
More to this: Had a cursed idea to write something equivalent to ValueStringBuilder using Memory<T> and it's actually faster than ArraySegment + MemoryStream?!
Witness Elara as her past floods her – a torrent of raw data, untamed memory. Narrative dissolves into chaos. A desperate grasp for a single moment…vanishes. The ego’s grip loosens. Silent edges bloom in the stillness. 💔 ✨ #MemoryStream #DataDreams #FracturedPast #EgoLetGo #SilentEdges
December 16, 2025 at 12:59 PM
Witness Elara as her past floods her – a torrent of raw data, untamed memory. Narrative dissolves into chaos. A desperate grasp for a single moment…vanishes. The ego’s grip loosens. Silent edges bloom in the stillness. 💔 ✨ #MemoryStream #DataDreams #FracturedPast #EgoLetGo #SilentEdges
KZDev.PerfUtils v3 is out 🚀 MemoryStreamSlim (drop-in for MemoryStream) now includes ToMemory() for more memory-efficient raw buffer access, and is benchmarked ahead of RecyclableMemoryStream across all categories.
www.nuget.org/packages/KZD...
#dotnet #csharp #perf #opensource
www.nuget.org/packages/KZD...
#dotnet #csharp #perf #opensource
KZDev.PerfUtils 3.0.1
Performance utilities for .NET projects, including the MemoryStreamSlim, StringBuilderCache, InterlockedOps, and Compression classes.
www.nuget.org
April 17, 2026 at 1:46 PM
KZDev.PerfUtils v3 is out 🚀 MemoryStreamSlim (drop-in for MemoryStream) now includes ToMemory() for more memory-efficient raw buffer access, and is benchmarked ahead of RecyclableMemoryStream across all categories.
www.nuget.org/packages/KZD...
#dotnet #csharp #perf #opensource
www.nuget.org/packages/KZD...
#dotnet #csharp #perf #opensource
また前後の PerSecondDataの位置をもつ両方向リンクリスト構造なので、(FrameDataが可変長であるにもかかわらず) リプレイ再生の早送り・巻き戻しができます (ただし1秒単位)。
【最後に zlib圧縮】
このようなバイト列 (MemoryStream) を、ファイルに保存するときは zlib で圧縮してから Base64 で文字化しています。
すると、データサイズはおよそ
《 1機 10分で 100 KB 》
となりました。
ブルーインパルスのフル再現を想定して 6機 45分 としても、たったの 2.7 MB です。
【最後に zlib圧縮】
このようなバイト列 (MemoryStream) を、ファイルに保存するときは zlib で圧縮してから Base64 で文字化しています。
すると、データサイズはおよそ
《 1機 10分で 100 KB 》
となりました。
ブルーインパルスのフル再現を想定して 6機 45分 としても、たったの 2.7 MB です。
July 10, 2026 at 5:31 AM
また前後の PerSecondDataの位置をもつ両方向リンクリスト構造なので、(FrameDataが可変長であるにもかかわらず) リプレイ再生の早送り・巻き戻しができます (ただし1秒単位)。
【最後に zlib圧縮】
このようなバイト列 (MemoryStream) を、ファイルに保存するときは zlib で圧縮してから Base64 で文字化しています。
すると、データサイズはおよそ
《 1機 10分で 100 KB 》
となりました。
ブルーインパルスのフル再現を想定して 6機 45分 としても、たったの 2.7 MB です。
【最後に zlib圧縮】
このようなバイト列 (MemoryStream) を、ファイルに保存するときは zlib で圧縮してから Base64 で文字化しています。
すると、データサイズはおよそ
《 1機 10分で 100 KB 》
となりました。
ブルーインパルスのフル再現を想定して 6機 45分 としても、たったの 2.7 MB です。
お ま た せ
い つ も の
(解説: C# でプログラミングをする時に「ここはまだ実装してないよ！！だからここのコードを実際に実行したらエラー出すね」というのを示すのが NotImplementedException です)
い つ も の
(解説: C# でプログラミングをする時に「ここはまだ実装してないよ！！だからここのコードを実際に実行したらエラー出すね」というのを示すのが NotImplementedException です)
July 28, 2023 at 12:39 PM
お ま た せ
い つ も の
(解説: C# でプログラミングをする時に「ここはまだ実装してないよ！！だからここのコードを実際に実行したらエラー出すね」というのを示すのが NotImplementedException です)
い つ も の
(解説: C# でプログラミングをする時に「ここはまだ実装してないよ！！だからここのコードを実際に実行したらエラー出すね」というのを示すのが NotImplementedException です)
WatsonWebserver v7.1.0 HTTP/1 Chunked Request Processing Bypasses MaxRequestBodySize
Posted by Ron E on Aug 26WatsonWebserver contains an HTTP/1 request body size-limit bypass when
processing requests using Transfer-Encoding: chunked.
The framework's configured Settings.IO.Max…
#hackernews #news
Posted by Ron E on Aug 26WatsonWebserver contains an HTTP/1 request body size-limit bypass when
processing requests using Transfer-Encoding: chunked.
The framework's configured Settings.IO.Max…
#hackernews #news
WatsonWebserver v7.1.0 HTTP/1 Chunked Request Processing Bypasses MaxRequestBodySize
Posted by Ron E on Aug 26WatsonWebserver contains an HTTP/1 request body size-limit bypass when
processing requests using Transfer-Encoding: chunked.
The framework's configured Settings.IO.MaxRequestBodySize limit is enforced
when a request declares its body size using Content-Length. However,
requests using chunked transfer encoding are processed through a separate
body-reading path that accumulates decoded chunks into a MemoryStream
without enforcing the same...
seclists.org
August 27, 2026 at 1:18 PM
WatsonWebserver v7.1.0 HTTP/1 Chunked Request Processing Bypasses MaxRequestBodySize
Posted by Ron E on Aug 26WatsonWebserver contains an HTTP/1 request body size-limit bypass when
processing requests using Transfer-Encoding: chunked.
The framework's configured Settings.IO.Max…
#hackernews #news
Posted by Ron E on Aug 26WatsonWebserver contains an HTTP/1 request body size-limit bypass when
processing requests using Transfer-Encoding: chunked.
The framework's configured Settings.IO.Max…
#hackernews #news
memo. stream.CopyTo(memoryStream); からの memoryStream.ToArray(); が楽そう。
[c# - Creating a byte array from a stream - Stack Overflow](stackoverflow.com/questions/22...)
[c# - Creating a byte array from a stream - Stack Overflow](stackoverflow.com/questions/22...)
Creating a byte array from a stream
What is the prefered method for creating a byte array from an input stream?
Here is my current solution with .NET 3.5.
Stream s;
byte[] b;
using (BinaryReader br = new BinaryReader(s))
{
b...
stackoverflow.com
July 18, 2026 at 4:27 AM
memo. stream.CopyTo(memoryStream); からの memoryStream.ToArray(); が楽そう。
[c# - Creating a byte array from a stream - Stack Overflow](stackoverflow.com/questions/22...)
[c# - Creating a byte array from a stream - Stack Overflow](stackoverflow.com/questions/22...)
Found a neat way of creating `BinaryData` from a `MemoryStream` with a zero-copy operation:
```
var stream = new MemoryStream();
stream.Write([1, 2, 3]); // some data is written to the memory stream
stream.Flush();
// this requires a memory copy
var […]
[Original post on hachyderm.io]
```
var stream = new MemoryStream();
stream.Write([1, 2, 3]); // some data is written to the memory stream
stream.Flush();
// this requires a memory copy
var […]
[Original post on hachyderm.io]
![Code snippet:
var stream = new MemoryStream();
stream.Write([1, 2, 3]); // some data is written to the memory stream
stream.Flush();
// this requires a memory copy
var dataViaStreamCopy = BinaryData.FromStream(stream);
// this does not require a memory copy
var dataViaBufferAccess = new BinaryData(stream.GetBuffer().AsMemory(0, (int)stream.Position));](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:zwllhl7oby7grbs3vf2zbeox/bafkreidblcl2jdd35atv4rtt4hgxfkgskinwzgttvhbzp4xgoo6w4nbytm)
October 23, 2025 at 10:48 AM
Found a neat way of creating `BinaryData` from a `MemoryStream` with a zero-copy operation:
```
var stream = new MemoryStream();
stream.Write([1, 2, 3]); // some data is written to the memory stream
stream.Flush();
// this requires a memory copy
var […]
[Original post on hachyderm.io]
```
var stream = new MemoryStream();
stream.Write([1, 2, 3]); // some data is written to the memory stream
stream.Flush();
// this requires a memory copy
var […]
[Original post on hachyderm.io]
Add WriteAsync overrides to stream helper in AIFunctionFactory (6419) https://github.com/dotnet/extensions/pull/6419
Add WriteAsync overrides to stream helper in AIFunctionFactory by stephentoub · Pull Request #6419 · dotnet/extensions
We use JsonSerializer.SerializeAsync but were missing the async overrides. As with MemoryStream, these don't need to queue.
Microsoft Reviewers: Open in CodeFlow
github.com
May 11, 2025 at 1:14 AM
Add WriteAsync overrides to stream helper in AIFunctionFactory (6419) https://github.com/dotnet/extensions/pull/6419
Optimize compression of embedded PDB file. (113803) https://github.com/dotnet/runtime/pull/113803
Optimize compression of embedded PDB file. by teo-tsirpanis · Pull Request #113803 · dotnet/runtime
Instead of buffering the compressed bytes to a MemoryStream, we directly write them to the BlobBuilder. This is achieved by defining a write-only stream type that wraps a BlobBuilder.
github.com
March 23, 2025 at 2:56 AM
Optimize compression of embedded PDB file. (113803) https://github.com/dotnet/runtime/pull/113803
Specialize BinaryReady for UnmanagedMemoryStream similar to MemoryStream specialization (113187) https://github.com/dotnet/runtime/issues/113187
Specialize BinaryReady for UnmanagedMemoryStream similar to MemoryStream specialization · Issue #113187 · dotnet/runtime
I have interop callbacks that give me a native byte array in the form of an IntPtr and length. Right now I Marshall.Copy that data into a byte[] that is passed into a MemoryStream to be consumed by...
github.com
March 6, 2025 at 2:11 AM
Specialize BinaryReady for UnmanagedMemoryStream similar to MemoryStream specialization (113187) https://github.com/dotnet/runtime/issues/113187
Undocumented ArgumentOutOfRangeException in XmlReader created from MemoryStream (113061) https://github.com/dotnet/runtime/issues/113061
Undocumented ArgumentOutOfRangeException in XmlReader created from MemoryStream · Issue #113061 · dotnet/runtime
Description If an XmlReader object is created via XmlReader.Create(stream) with a MemoryStream having certain data, then an undocumented ArgumentOutOfRangeException may be thrown. Reproduction Step...
github.com
March 3, 2025 at 9:36 AM
Undocumented ArgumentOutOfRangeException in XmlReader created from MemoryStream (113061) https://github.com/dotnet/runtime/issues/113061