- Fix compilation with clang
- Tweak perfetto copy to build tree
- Added suppression files to scripts
- fix LD_PRELOAD support in omnitrace-causal and omnitrace-sample
- use spin_mutex and spin_lock from timemory instead of atomic_mutex and atomic_lock
- state uses atomic
- fix some memory leaks
- tweak testing
  - mpi tests do not use preload
  - increase timeout when using sanitizers
  - add env LD_PRELOAD when using sanitizers

- fixed spin_mutex implementation

- this appears to cause errors during binary rewrite

- relaxed causal validation on CI systems (to account for hyperthreading decreasing prediction)
- improved impact calculation
- other general improvements to validate-causal-json.py

- numerous updates changing perfetto:: to ::perfetto::
- added perfetto_fwd.hpp

- user API for validation that stopping/starting perfetto is valid

- tweak regions in fork example
- handle disabling tmp files
- get rid of stop/start with perfetto before/after fork
- fixed sampling support during fork
- tweak env of fork test

- quick exit to avoid perfetto cleanup

- enable PROCESSOR_AFFINITY
- decrease to 5 iterations

- disable PROCESSOR_AFFINITY for fast func e2e tests
- enabling affinity results in (valid) speedup predictions greater than zero

- use pthread_atfork for redundancy if fork_gotcha fails

- remove dl from PROJECT_BUILD_TARGETS

- fix mpi-binary-rewrite-run regex when OMNITRACE_VERBOSE set > 1 in env
- increase causal e2e iterations to 8

- test-find-package.sh included dl component

- further considerations of variance