PerfView and TraceEvent 3.1.6

Roll-up through 2023/10/20.

• Harden TraceEventSession.ProviderNameToGuid
• Fixed calculation of Alloc MB / Pause Time in GC
• New version of Microsoft.Diagnostics.Tracing.TraceEvent.SupportFiles
• Protect Initialization of TraceEventSession Provider Lists

PerfView and TraceEvent 3.1.5

Roll-up through 2023/08/24.

• Extensibility support for CtfTraceEventSource mappings. This is to enable custom parsers to register events with CtfTraceEventSource which operates off of event provider/name instead of ETW metadata.
• Fix computation of background GC pause times.

PerfView and TraceEvent 3.1.4

Roll-up through 2023/07/31.

• Update goto source functionality to display both inclusive and exclusive costs. Previously only inclusive costs were shown.
• Update LockCreated and ContentionStart_V2 events to allow for tracking of lock creation and acquisition of locks by thread.
• Support for uncompressed embedded source files in PDBs.
• Support for basic authentication when authenticating to symbol servers.
• Improvements to the Events view to launch maximized and to increase the number of allowed columns.
• Various security improvements including building with banned.h (avoid usage of unsafe native APIs), enabling additional binary hardening settings, and switching to secure random number generation.

PerfView and TraceEvent 3.1.3

Roll-up through 2023/05/16.

• Make Linux performance trace parsing more robust.
• Add support for capturing thread time data via perfcollect within containers.
• Add support for new instrumented code types generated by the .NET JIT.
• Fix bug where rundown is much more expensive than it should be.
• Address a stack overflow bug in TraceEventSession.GetActiveSessionNames.
• Allow users to specify a rundown file size limit. This is useful in environments with many processes where rundown takes a very long time.

PerfView and TraceEvent 3.1.2

Roll-up through 2023/04/12.

• Fixes a bug that causes symbols in stack views to not resolve.

PerfView and TraceEvent 3.1.1

Roll-up through 2023/04/04.

• Fixes a bug that resulted in significant degradation of performance in some apps due to very verbose events being enabled.
• Only refresh stack views when the filter/grouping criteria has changed.

PerfView and TraceEvent 3.1.0

Roll-up through 2023/03/31.

• Standardize all TraceEvent libraries to compile against netstandard2.0 only.
• Switch FastSerialization and TraceEvent projects to produce portable PDBs instead of Windows PDBs.
• Refactor PerfView dependencies to make them more explicit.
• Enable certificate revocation when contacting https endpoints.
• Convert ForceGC functionality to use built-in ETW capabilities and remove ICorDebug code from HeapDump.
• Cache the DIA class factory used for native symbol lookup.
• Dispose cached PDBs properly so that they aren’t locked on disk after use.
• Fix parsing of CTF metadata documents with out-of-order elements in LTTng traces.
• Several internal and surface area changes to Automated Trace Analysis capabilities.
• Enable opening of portable PDBs when running TraceEvent on Linux.
• Parse and consume new GC events, including a new GCSettings event.
• Fix native image PDB symbol resolution for diagsession files.
• Enable rundown event collection for GC and Tiered Compilation settings.
• Enable PerfView to capture the FileVersion fields for all .NET runtime DLLs consumed during trace capture and inject them into the trace.

PerfView and TraceEvent 3.0.8

Roll-up through 2023/02/24.

• Add a new collection option /UserCritContention and analysis view for analyzing work done while the UserCrit is held. This is interesting for UI apps that experience visual perturbances.
• Improvements to how TraceEvent and PerfView handle clean-up of ETW session handles.
• Movement of utility classes to the Microsoft.Diagnostics.Utilities namespace to avoid namespace collisions.
• Switch PerfView and TraceEvent to only use documented Win32 APIs. Remove OSExtensions.dll from PerfView and TraceEvent packaging.
• Remove InternalOnly checks in PerfView which limited features to users on Microsoft’s corporate network.

PerfView and TraceEvent 3.0.7

Roll-up through 2023/01/17.

• Fix EventCounter graphing in PerfView.
• Fix bug in processing of CTF traces from LTTng (Linux).
• Fix handling of Windows Handle events.
• Fix the process ID associated with VirtualMem events. This caused some stack views in some traces to contain multiple nodes for the same thread.
• Add a finalizer for TraceEventSource.
• Update to ClrMD 2.3.405304 for additional support of GC regions in heap snapshots.
• Add support for parsing and stack-ifying strace output (Linux).
• Add support for capturing LBR events.

PerfView and TraceEvent 3.0.6

Roll-up through 22/09/26.

• Add a dark mode theme to PerfView
• Remove the 10M node limit for ETW/dotnet-trace heap snapshots, allowing for larger heap snapshots without sampling.
• Expose TraceGC.GenerationCount to allow for discovery of additional generations (e.g. .NET Core).
• Update to ClrMD 2.2.343001 which contains fixes for capturing heap dumps of .NET Core processes that use regions.