VizTracer 1.1.1 Release

• Validate the output file extension on the command line
• Deal with python options with args
• Fix --once for the new request order
• Issue a warning instead of exception for mismatch events
• Add extra checks for fprintfeename

VizTracer 1.1.0 Release

• Supported 3.14 and dropped 3.9
• Fixed how multiprocessing treats max_stack_depth
• Called atexit in reverse order
• Used modern C API to improve performance
• Updated Perfetto version

VizTracer 1.0.4 Release

• Support source code of frozen modules
• Clear all the references in __main__ after exec
• Make tracing work in forked process when it raises Exceptions
• Minify perfetto files for smaller wheels

VizTracer 1.0.3 Release

• Supported python entries for subprocess
• Improved how we deal with SIGTERM for exits
• Supported forkserver
• Fixed unique file name with multiprocessing

VizTracer 1.0.2 Release

• Fixed a critical (but rare) issue where some C method call might not be recorded.

VizTracer 1.0.1 Release

• Fixed overflow in quicktime calibration loop
• Updated external processor version to match Perfetto UI
• Supported absolute timestamp of torch profiler before 2.4
• Supported gzip for vizviewer
• Implemented sync marker for trace alignment

VizTracer 1.0.0 Release

• Polished the interface and APIs of C tracer to fully eliminate the middleware _VizTracer
• Utilized __rdtsc() for timestamp when available, reducing the overhead
• Made it possible to align with Unix timestamp at us level
• Optimized import speed so viztracer command can be much faster to invoke
• Allowed custom repr function for function args and return value
• Used sys.monitoring for Python3.12+ for better performance
• Updated the documentation to reflect the current implementation

VizTracer 0.17.1 Release

• Supported PyTorch events with --log_torch
• Source code on the UI is now more stable
• Added more protection in trace func to avoid segfault

VizTracer 0.17.0 Release

• Supported 3.13 and 3.13t, dropped 3.8
• Updated Perfetto to v47.x
• Dropped flamegraph feature because Perfetto supports it natively now
• Allowed unfinished function and dump unfinished functions at exit
• Made logsparse work for spawned process
• Used __qualname__ when possible
• Fixed patching when shell=True
• A few minor bug fixes

VizTracer 0.16.3 Release

• Added option to generate unique file name
• Fixed compiler warning for conda-forge
• Made pickle to work for multi-processing
• Tried to support FreeBSD
• Fixed a couple of bugs