Top runtime issues
dotnet.exe 'Access violation'
area-Diagnostics-coreclr
cschuchardt88·26 Jan 2019·8 Comments Perf: Exceptions are much slower on .NET Core compared to .NET Framework
area-ExceptionHandling-coreclr tenet-performance tracking-external-issue
billwert·26 Jan 2019·8 Comments Microbenchmarks should run with tiered JITing enabled
area-Infrastructure-coreclr tenet-performance-benchmarks
jkotas·22 Jan 2019·4 Comments Adding memcmp intrisinc?
area-System.Memory
ayende·18 Jan 2019·15 Comments RyuJIT bounds checks not eliminated for readonly arrays
JitUntriaged area-CodeGen-coreclr enhancement optimization
benaadams·11 Jan 2019·17 Comments SR.Format with format provider
area-System.Runtime
stephentoub·2 Jan 2019·2 Comments Allow SSE/SSE2 intrinsics in R2R and crossgen scenarios
area-CrossGeNGEN-coreclr
tannergooding·19 Dec 2018·21 Comments Performance Regression: GetCustomAttributes() Allocations Increased from netcoreapp2.1
area-System.Reflection tenet-performance
NickCraver·9 Dec 2018·4 Comments Allow CLR to get/invoke direct pointer to a virtual method (interface method)
Design Discussion area-CodeGen-coreclr
dmitriyse·5 Dec 2018·19 Comments 
mdmoura·30 Nov 2018·24 Comments