Going forward, the .NET team is using https://github.com/dotnet/runtime to develop the code and issues formerly in this repository.
Please see the following for more context:
CoreFX is the foundational class libraries for .NET Core. It includes types for collections, file systems, console, JSON, XML, async and many others.
.NET Core Libraries (CoreFX) This repo contains the library implementation (called "CoreFX") for .NET Core. It includes System.Collections, System.IO, System.Xml, and many other components. The corresponding .NET Core Runtime r
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5 Open
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Closed
/cc @dotnet/maestro-reviewers-core
opened Apr 15, 2019 by dotnet-maestro-bot 156
Closed
#21371 Changed the OpenSsl code to use a "custom" bio that uses the buffers from managed code directly rather than using an interim MemoryBio to stop extra copying.
This alone didn't provide much performance however I have modified the encrypt side to write directly to the output buffer, if the content is too large it will then send that to the socket and return to get more of the frame/frames.
This should setup the future for improvements on the read side and to react to Buffer/Span changes.
The performance diff I see on my hardware using the Techempower plaintext on Ubuntu 14.04 with SSL turned on is as below these are unconfirmed numbers. There is a clear convergence of the new and old code as the send sizes get bigger, the numbers don't include the HTTP Header, so the 11 bytes == Hello World. The tests use 256 connections, and pipelining with a depth of 16
os-linux area-System.Net.Security
opened Aug 6, 2017 by Drawaes 146
Closed
/cc @dotnet/maestro-reviewers-core
area-Infrastructure-libraries
opened Mar 28, 2019 by dotnet-maestro-bot 100
Closed
This added VB FileIO and MsbBox and support, on Windows it includes UI support on other OS's it throws exception on attempt to use UI.
area-Microsoft.VisualBasic
opened Oct 7, 2018 by paul1956 76
Closed
Problem
Enabling System.Net.Security.NegotiateStream for Unix.
Solution
This PR introduces the implementation of NegotiateStream based on native implementations of gssapi
The native implementations used are mit-krb5 on linux and the built-in GSS.Framework for OSX.
Also included are scripts to configure and deploy KDC on the host machine so as to run the associated tests.
cc: @stephentoub @bartonjs @CIPop @davidsh @vijaykota @shrutigarg
area-System.Net os-linux
opened Feb 26, 2016 by kapilash 75
Closed
Since Environment.Exit bug has been fixed in both coreclr and core-setup, this PR enables the tests in corefx repo.
Related issue: https://github.com/dotnet/coreclr/issues/6206#issuecomment-295339778 https://github.com/dotnet/core-setup/issues/2050
Fix #18776
area-System.Runtime.Extensions
opened May 2, 2017 by mazong1123 71
Open
Fixes https://github.com/dotnet/runtime/issues/48220 also in 3.1
Description
Deadlock in HTTP/2 - when a window update (WINDOW_UPDATE frame) is received at the same time as the HTTP/2 request is being completed. We saw the very same problem in 5.0 in https://github.com/dotnet/runtime/issues/48220 (reported by customer) and fixed it in https://github.com/dotnet/runtime/pull/47769 for .NET 5.0.
The problem lies in firstly locking connection sync object and then stream's (window update) while request completions attempts to lock stream and than connection.
In 5.0 (https://github.com/dotnet/runtime/pull/47769), we've split Http2Stream lock into 2 objects, one for the stream itself (used for completion etc.) and other for credit handling (window updates and sent bytes counting).
In 3.1, Http2Stream looks slightly different and uses credit manager's sync object as stream's sync object. So redefining stream's sync object to lock over this achieves the same thing as the fix in 5.0 since operations over Http2Stream are guarded with stream's lock and operations with credit lock credit manager itself (separate sync object for window updates and sent bytes counting).
Customer Impact
Reliability problem. Reported by customer using YARP. They are hitting it for specific backend server (likely due to timing). Temporary workaround is to disable HTTP/2 for the endpoint - such solution does not scale for larger number of backends and might not be acceptable for other backends.
Regression
No
Risk
Low.
Local test run for 3.1. When we fixed the issue in 5.0, we got a confirmation from the reporting customer that the fix helped and that it didn't break anything. YARP customer needing the 3.1 fix is unable to verify the fix on unsigned binaries.
Link to PR / issue in main
Issue: https://github.com/dotnet/runtime/issues/48220 6.0 (main) PR: https://github.com/dotnet/runtime/pull/47769 5.0.5 servicing PR: https://github.com/dotnet/runtime/pull/47921
Is there a packaging impact?
No
* NO MERGE * area-System.Net.Http Servicing-approved
opened Oct 15, 2021 by ManickaP 5
Open
Clang now enables cast-function-type warning which results in build errors that look like this:
/corefx/src/Native/Unix/System.Native/pal_process.c(382,76): error G39B05358: cast from 'void (*)(int, siginfo_t *, void *)' to 'void (*)(int)' converts to incompatible function type [-Werror,-Wcast-function-type] [/corefx/src/Native/build-native.proj]
void (*oldhandler)(int) = (sa_old.sa_flags & SA_SIGINFO) ? (void (*)(int))sa_old.sa_sigaction : sa_old.sa_handler;
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Disable this warning using -Wno-cast-function-type warning. That seems lower-risk than any functional code change.
Clang 13 also enables reserved-identifier warning which results in build errors like this:
/corefx/src/Native/Unix/System.Native/pal_process.c(819,17): error GA61F72A6: identifier '__cpu' is reserved because it starts with '__' [-Werror,-Wreserved-identifier] [/corefx/src/Native/build-native.proj]
if (CPU_ISSET(cpu, &set))
^
/usr/include/sched.h:94:34: note: expanded from macro 'CPU_ISSET'
# define CPU_ISSET(cpu, cpusetp) __CPU_ISSET_S (cpu, sizeof (cpu_set_t), \
^
This really seems like a bug in clang that it's complaiing about code in
system libraries that we are using via wrapper-macros. But there are
other instances of this warning that are speciifc to our code too, such
as __padding in
src/Native/Unix/System.Native/pal_interfaceaddresses.h. Disable this
warning too.
Tested with Clang 13 rc1
area-Infrastructure
opened Sep 1, 2021 by omajid 0
Open
opened Aug 13, 2021 by mmitche 2
Open
/cc @dotnet/maestro-reviewers-core
area-Infrastructure
opened Aug 12, 2020 by dotnet-maestro-bot 17
Open
Port of https://github.com/dotnet/runtime/pull/32768 Fixes https://github.com/dotnet/runtime/issues/32767
Description
An Expression lambda delegate cache was added in .NET Core 2.0. If there are many calls to Expression.Lambda<TDelegate>() overloads with distinct delegate types which result in cache misses, the result is a performance regression.
Customer Impact
Performance regression with many calls to Expression.Lambda<TDelegate>() with distinct delegate types. Customer reported this impact in a migration from .NET Framework to .NET Core.
Packaging Impact
None
Regression
Regression from .NET Core 1.0, and .NET Framework.
Testing
See benchmark testing in https://github.com/dotnet/runtime/issues/32767.
Risk
Low. The change avoids the cache and allocates a distinct Expression<TDelegate> each time.
cc @ericstj
area-System.Linq.Expressions * NO MERGE *
opened Feb 25, 2020 by cston 22
v3.1.20(Oct 13, 2021)
v3.1.19(Sep 15, 2021)
v3.1.18(Aug 11, 2021)
v3.1.17(Jul 13, 2021)
v3.1.16(Jun 8, 2021)
v3.1.15(May 11, 2021)
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