ce1cea95e45b4e8c8ba3c7a7b36d0194ebd7d11d
6 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
 Jonathan R. Madsen
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9de3a6b0b4 |
Linux Perf Support + Causal Profiling Updates (#276)
* causal backtrace updates
- fix initial causal sampling period value
* causal delay updates
- tweak handling of sleep_for_overhead
* Fix experiment global scaling for prog pts
- results in drastically improved predictions
* pthread_mutex_gotcha updates
- disable all wrappers during causal profiling
* validate-causal-json.py updates
- support decimal stddev
- fix setting stddev from command-line
* causal perform_experiment_impl update
- handle start failing because finalizing
* deprecate causal::component::sample_rate
- appears to not help at all
* Rework sample info
* Increase causal unwind_depth
- use OMNITRACE_MAX_UNWIND_DEPTH
* validate-causal-json updates
- min experiments
- exclude reporting predictions with less than X experiments at a given speedup
- percent samples
- only print samples within X% of the peak (default: 95%)
* Update timemory submodule
- extensions to sampling for signals delivered via non-timer method
- e.g. via HW counter overflow
* dwarf_entry::operator< updates
- sort via file
* causal profiling docs updates
- info about backends
- info about installing/enabling perf
* config updates: causal backend
- CausalBackend enum
- OMNITRACE_CAUSAL_BACKEND: perf, timer, auto
- omnitrace-causal option: --backend
* debug update
- use spin_mutex instead of std::mutex
* address_range::contains update
- range from 0-100 contains range from 10-100 but was returning false because high was == 100 not < 100
* symbol::operator< update
- handle load address differences
* sampling updates (non-causal)
- update get_timer to get_trigger + dynamic_cast
* container::static_vector updates
- support construction from container::c_array
- update_size private member func for handling atomic m_size
* Move perf files
- moved library/causal/perf.{hpp,cpp} to library/perf.{hpp,cpp}
* causal example update
- created impl.hpp (forward decls)
- renamed {cpu,rng}_func_impl to {cpu,rng}_impl_func
- only create two threads which run N iterations instead of two threads each iteration
* Update timemory submodule
- updates to unwind::processed_entry
- updates to procfs::maps
* Updated causal documentation
- fixed line numbers changed by modifications to causal example
* omnitrace-causal exe updates
- set OMNITRACE_THREAD_POOL_SIZE to zero by default
* core/containers updates
- static_vector: provide data() member function
- c_array pop_front() and pop_back() member functions
* core: config and argparse updates + perf
- core/perf.{hpp,cpp}
- forward decl of enums
- config-related capabilities
- argparse: --sample-overflow
- renamed some config functions
- e.g. get_sampling_cpu_freq -> get_sampling_cputime_freq
- added config settings related to overflow sampling via perf
- added timer_sampling and overflow_sampling categories
* Update timemory submodule
- sampling allocator flushing
* binary updates
- lookup_ipaddr_entry
- use bfd_find_nearest_line instead of bfd_find_nearest_line_discriminator
- discriminators are not used
- explicit instantiations of inlined_symbol::serialize
* Bump VERSION to 1.10.0
* sampling and perf updates
- support overflow sampling via Linux Perf
- update perf namespace
- update perf::perf_event
- update record ctor: pointer instead of const ref
- update open member func: return optional string
- add m_batch_size member variable
- sampling updates
- support overflow sampling
- flush allocators
- increase buffer size from 1024 to 2048
- restructure post-processing in light of perf overflow supports
- improve offload memory usage only load buffers for thread
- load_offload_buffer(tid) uses thread-specific filepos
- component updates
- backtrace_metrics::operator-=
- backtrace_metrics::operator-
- backtrace::sample does not record for overflow signal
- callchain: perf overflow sample
* core updates
- component::sampling_percent does not report self + uses_percent_units
* causal updates
- tweak get_line_info
- overloads for set_current_selection (uint64_t, c_array, std::array)
- delay
- use sampling::pause/sampling::resume
- experiment
- experiment::sample derives from unwind::processed_entry
- experiment::samples is vector instead of set
- fixed samples
- overloads for is_selected (uint64_t, c_array, std::array)
- scaling factor defaults to 100 instead of 50
- serialize updates follow change to experiment::sample
- modify algorithm for increasing/decreasing experiment length
- sample_data
- use map<uintptr, uint64_t> instead of set<sample_data>
- get_samples returns vector<sample_data> instead of set<sample_data>
- sampling
- support overflow via Linux Perf
- update causal_offload_buffer
- flush sampling allocator
- backtrace
- overflow component
* libomnitrace-dl updates
- handle dl::InstrumentMode::PythonProfile
* testing updates (causal)
- causal line 155 -> causal line 100
- causal line 165 -> causal line 110
* formatting
* exit_gotcha updates
- exit_info for abort()
- message about non-zero exit code
* testing updates
- fail regex for causal tests
- validate-causal-json: >= min_experiments instead of > min_experiments
- handle OMNITRACE_DEBUG_SETTINGS in omnitrace_write_test_config
* causal sampling updates
- add new lines where appropriate
* causal data updates
- reorder diagnostic info when experiment fails to start
* binary updates
- symbol address range from address to address + symsize + 1
- add 1 based on debug info
* causal data updates
- sample_selection wait_ns defaults to 1,000 instead of 10,000
- sample_selection wait scaled by iteration number
- save_line_info_impl verbosity
- print latest_eligible_pc when experiment does not start
* causal sampling + component updates
- perf backend disables component::backtrace
- ensure get_sampling_(realtime|cputime|overflow)_signal do not malloc
* causal: remove period stats
* validate-causal-json update
- fix --help
* causal data updates
- improve eligible pc history reporting when experiment fails to start
* causal data updates
- fix compute_eligible_lines_impl
- eligible address ranges returning too many ranges
- occasionally, overwrite all *true* eligible address ranges
* causal data updates
- reduce scoped ranges to symbol ranges
- is_eligible_address() returns true contains (not just coarse)
- revert some sample_selection behavior
* binary address_multirange updates
- make coarse_range private
- fix operator+=(pair<coarse, uintptr_t>)
* causal example update
- fix nsync to default to once per iteration
* binary analysis updates
- tweak header file includes
* causal updates
- remove factoring in sleep_for_overhead
- invoke delay::process() even if experiment is not active
* causal data updates
- update latest_eligible_pc structure
* update omnitrace-install.py.in
- fix support for fedora
- /etc/os-release does not have ID_LIKE
- fallback to RHEL 8.7 if version not specified
* update omnitrace-install.py.in
- fix support for debian
- /etc/os-release does not have ID_LIKE
- version mapping
* Update documentation
- update docs on installation
* causal data and experiment updates
- data: reset_sample_selection
* causal set_current_selection debugging
- debug messages for failed e2e runs
* causal data and backtrace component updates
- data: set_current_selection returns the number of eligible addresses added
- backtrace: if cputime signal has selected zero IPs > 5x, then realtime signal starts contributing call-stacks
* core library updates
- move config::parse_numeric_range to utility namespace
- add core/utility.cpp
- support range:increment, e.g. 5-25:10 expands to '5 15 25' instead of '5 10 15 20 25'
* omnitrace-causal update
- end-to-end expands all speedups
- support range:increment in speedups
* causal backtrace updates
- remove select_ival (realtime signal always contributes when select_count == 0)
* containers: static_vector update
- explicit c_array constructor
- explicit std::array constructor
* causal data updates
- remove set_current_selection(uint64_t)
- remove set_current_selection(std::array)
- sample_selection increase default wait time
- report eligible PC candidates
- move reset_sample_selection to perform_experiment_impl
- decrease latest_eligible_pc array size
- set_current_selection does not guard for experiment::active
* core debug updates
- OMNITRACE_PRINT_COLOR macros
* causal data updates
- tweak to experiment never started message
* causal gotcha updates
- remove unused code
* critical trace updates
- remove unused code
* omnitrace-causal
- OMNITRACE_LAUNCHER
* causal data updates
- don't fail on end-to-end + omnitrace-causal
* causal backtrace updates
- reintroduce select_ival behavior
* causal data updates
- tweak verbose messages about number of PC candidates
* core mproc updates
- utilities for waiting on child PID and diagnosing status
- omnitrace::mproc::wait_pid
- omnitrace::mproc::diagnose_status
* omnitrace-run updates
- support --fork argument for executing via fork in current process + execvpe on child instead of execvpe in current process
* omnitrace-causal updates
- wait_pid and diagnose_status just call equivalent functions in omnitrace::mproc
* ubuntu-focal workflow update
- attempt to launch ubuntu-focal-codecov job with CAP_SYS_ADMIN and use perf backend
* tests reorg and updates
- remove binary-rewrite-sampling and runtime-instrument-sampling tests
- rename *-preload tests (which use omnitrace-sample exe) to *-sampling
- split tests/CMakeLists.txt into several tests/omnitrace-<category>-tests.cmake files
- tweak to causal-both-omni-func test
- add args: -n 2 -b timer
* update validate-causal-json.py
- better reasoning info for adjusting tolerance
- always apply tolerance adjustments in CI mode
* causal e2e tests update
- add label "causal-e2e" label
- tweak params
- old: 80 12 432525 500000000
- new: 80 50 432525 100000000
- disable processor affinity for slow-func/line-100 tests
- artificially inflates some speedups with perf
* unblocking_gotcha updates
- overload operator() according to gotcha function index
* blocking_gotcha updates
- overload operator() according to gotcha function index
- fix bug where potentially post block functors (e.g. pthread_mutex_trylock) throw error if lock is not acquired.
* parse_numeric_range update
- support unordered_set
* config update
- OMNITRACE_DEBUG_{TIDS,PIDS} use parse_numeric_range
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Jonathan R. Madsen
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4ed5f3e67b |
rocprofler_iterate_info workaround + omnitrace-avail update (#270)
* rocprofler_iterate_info workaround + omnitrace-avail update
- provides workaround for rocprofiler_iterate_info behavior change in ROCm 5.4.0-3
- update timemory submodule with argparse tweaks
- updates hsa_rsrc_factory.{hpp,cpp}
- colorized log in omnitrace-avail
- Bump version to 1.9.2
* Fix empty_base inheritance
- timemory's component::empty_base inherits from concepts::component so direct inheritance was removed
* Fix OMNITRACE_HIP_VERSION_COMPAT_STRING
- defined as "" when OMNITRACE_HIP_VERSION_MAJOR==0
* new defines + extra info
- define OMNITRACE_LIBRARY_ARCH (via CMAKE_LIBRARY_ARCHITECTURE)
- define OMNITRACE_SYSTEM_NAME (via CMAKE_SYSTEM_NAME)
- define OMNITRACE_SYSTEM_PROCESSOR (via CMAKE_SYSTEM_PROCESSOR)
- define OMNITRACE_SYSTEM_VERSION (via OMNITRACE_SYSTEM_VERSION)
- define OMNITRACE_COMPILER_ID (via CMAKE_CXX_COMPILER_ID)
- define OMNITRACE_COMPILER_VERSION (via CMAKE_CXX_COMPILER_VERSION)
- include this info in metadata
- include subset of this info in --version for bin tools
- tweak to perfetto verbose messages
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Jonathan R. Madsen
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e7d3125459 |
restructure libomnitrace + tasking and omnitrace-causal updates (#237)
* restructured libomnitrace - this is necessary to incorporate some of the binary analysis capabilities into omnitrace exe - created libomnitrace-core (static) - created libomnitrace-binary (static) - created libomnitrace (static) - omnitrace-avail links to libomnitrace.a - omnitrace-critical-trace links to libomnitrace.a - tweaked the testing - reduced verbosity on some of MPI tests - excluded trace-time-window from tests on Ubuntu 18.04 - reduced causal e2e iterations - minor tweak to tasking - manually create `PTL::UserTaskQueue` instance instead of relying on `PTL::ThreadPool` to create it * Update formatting workflow - source formatting uses ubuntu-22.04 - check-includes doesn't generate false positive for 'include "timemory.hpp"' * omnitrace-causal --generate-configs - fix config generation in omnitrace causal - add test for omnitrace-causal + generating configs * Fix omnitrace-object-library build - accidentally included rocm sources in non-rocm builds * Fix rocm compilation w/o rocprofiler * update timemory submodule with mpi_get warning messages * sampling offload file updates - more verbose messages - disable offload before stopping * testing updates - increase causal e2e iterations to 12 - increase lock_environment verbose to 2 (for sampling offload messages) - fix return for omnitrace_add_validation_test |
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Jonathan R. Madsen
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8feb6bf8b6 |
Global trace delay and duration (#235)
- The primary feature of this PR is the **addition of support for scoping the collection of tracing/profiling data into one or more time-based windows** - Closes #222 - Closes #207 - Support for a real-clock time delay and/or a duration for tracing/profiling was added, *resembling the support for this feature during sampling and process-sampling* - However, above paradigm was enhanced for tracing - Instead of one delay and/or one duration based on real time, ***tracing supports periodic and varying delays and durations and these delay+duration sets can be controlled with different clocks*** - At some point, this capability will be extended to sampling and process-sampling - A secondary feature of this PR are the improvements to the handling of categories (by-product of the primary feature) - For example, previously setting `OMNITRACE_ENABLE_CATEGORIES` to a specific set of categories only eliminated the disabled categories from the perfetto trace, now these are applied to timemory profiles too - A new configuration variable `OMNITRACE_DISABLE_CATEGORIES` was added for when disabling only a handful of categories is easier - There are quite a few miscellaneous modifications which pollute this PR a bit ## Multiple Tracing Windows As noted above, tracing now supports specifying multiple delays and durations _and_ with different clocks. Consider the configuration below with two entries in the format `<DELAY>:<DURATION>:<REPEAT>:<CLOCK_TYPE>`: ```console OMNITRACE_TRACE_PERIODS = 0.5:1.0:2:realtime 10.0:5.0:3:cputime ``` The above configuration defines: 1. `0.5:1.0:2:realtime` - A delay of 0.5 seconds (real-time) - Followed by a data collection duration of 1 second (real-time) - This delay + duration is repeated 2x - Summary: tracing data is collected for 2 out of the first 3 seconds of the application's execution 2. `10.0:5.0:3:cputime` - A delay of 10 seconds (process _CPU-time_) - Followed by a data collection duration of 5 seconds (process _CPU-time_) - This delay + duration is repeated 3x - Summary: tracing data is collected for a total of 15 seconds of process CPU-time in the ensuing 75 seconds of CPU-time during the application execution. - Note: the elapsed CPU-time is the aggregate of the CPU-time consumed by all the threads in the process and should be scaled accordingly, e.g., 4 threads running constantly for 1 second of real-time is ~4 seconds of CPU time. ## `omnitrace-sample` Changes Formerly, `--wait` and `--duration` command-line options only applied to sampling delay and duration. The value of these options are now applied to the tracing delay and duration. To retain the ability to control sampling delay/duration without setting tracing delay/duration or vice versa, `--sampling-wait`, `--sampling-duration`, `--trace-wait`, and `--trace-duration` options were added. `omnitrace-sample` also has new options for most of the new configuration options detailed below. ## New configuration options | Option | Description | | ------- | ----------- | | `OMNITRACE_DISABLE_CATEGORIES` | inverse behavior from `OMNITRACE_ENABLE_CATEGORIES` -- populates list of all available categories and then removes the specified ones. | | `OMNITRACE_TRACE_DELAY` | Single floating-point number specifying time to wait before starting data collection. Analagous to `OMNITRACE_SAMPLING_DELAY` and `OMNITRACE_PROCESS_SAMPLING_DELAY` | | `OMNITRACE_TRACE_DURATION` | Single floating-point number specifying data collection duration. Analagous to `OMNITRACE_SAMPLING_DURATION` and `OMNITRACE_PROCESS_SAMPLING_DURATION` | | `OMNITRACE_TRACE_PERIOD_CLOCK_ID` | Sets the default clock-type for tracing delay/duration. Always applied to above two options, can be overridden in below option. Accepts `CLOCK_REALTIME`, `CLOCK_MONOTONIC`, `CLOCK_PROCESS_CPUTIME_ID`, `CLOCK_MONOTONIC_RAW`, `CLOCK_REALTIME_COARSE`, `CLOCK_MONOTONIC_COARSE`, `CLOCK_BOOTTIME`. See `man 2 clock_gettime` for details on differences. | | `OMNITRACE_TRACE_PERIODS` | More powerful version for specifying delay + duration. Supports formats: `<DELAY>`, `<DELAY>:<DURATION>`, `<DELAY>:<DURATION>:<REPEAT>`, and `<DELAY>:<DURATION>:<REPEAT>:<CLOCK_ID>`. | ## Miscellaneous Changes - Expanded `critical_trace_categories_t` to include tracing data from MPI, pthread, HIP, HSA, RCCL, NUMA, and Python. - Added categories `thread_wall_time` and `thread_cpu_time` (derived from sampling) - Read DWARF info for breakpoints - Relocated some source code - Reason: necessary to make `libomnitrace` a bit more modular. Eventually, a large chunk will be separated into `libomnitrace-core`, `libomnitrace-binary`, etc. in order to facilitate re-usability - Relocated some functionality from `runtime.cpp` to `config.cpp` - Relocated code using rocm-smi library to query number of devices to `gpu.cpp` (where the code for using HIP to query number of devices is) - Relocated code for perfetto config and perfetto session out of tracing namespace to reside with other perfetto code - `OMNITRACE_COLORIZED_LOG` configuration option renamed to `OMNITRACE_MONOCHROME` - Backwards compatibility via a deprecated option was not retained here since the logic changed (i.e. true in former means false in latter) - Replaced `TIMEMORY_DEFAULT_OBJECT` macro with `OMNITRACE_DEFAULT_OBJECT` macro - Updated some code in roctracer to use `component::category_region` instead of explicitly using `tracing::` functions - Updated `backtrace_metrics` to better support controlling their presence in the traces/profiles via categories - Added support for `--print` in `validate-timemory-json.py` - Generic `OMNITRACE_ADD_VALIDATION_TEST` CMake function ## Git Log * OMNITRACE_DEFAULT_OBJECT - replace TIMEMORY_DEFAULT_OBJECT with TIMEMORY_DEFAULT_OBJECT * trace-time-window example + tests - adds cmake OMNITRACE_ADD_VALIDATION_TEST function for testing - validate-timemory-json.py now supports printing (-p) - update to OMNITRACE_STRIP_TARGET * Update timemory submodule - detailed backtrace print /proc/<PID>/maps - operation::push_node verbosity change - storage::insert_hierarchy use emplace + at instead of operator[] - concepts::is_type_listing - argparse updates for start/end group - argparse color fixes * perfetto updates - Remove OMNITRACE_CUSTOM_DATA_SOURCE CMake option - move tracing::get_perfetto_config and tracing::get_perfetto_session to perfetto.cpp * config and runtime updates - OMNITRACE_DISABLE_CATEGORIES option - get_enabled_categories() + get_disabled_categories() - config impl handles populating them - OMNITRACE_TRACE_DELAY option - OMNITRACE_TRACE_DURATION option - OMNITRACE_TRACE_PERIODS option - {get,set}_signal_handler - removes config.cpp link dependency for omnitrace_finalize - get_realtime_signal() + get_cputime_signal() + get_sampling_signals() - moved from runtime.cpp to config.cpp * utility::convert - helper function for converting string to a type * pthread_create_gotcha + thread_info updates - thread_index_data::as_string() - tweak printing info about new thread / exited thread * binary updates - get_binary_info has arg to disable dwarf parsing - binary_info contains vector of breakpoint addresses - binary_info:filename() function - binary::get_linked_path - binary::get_link_map has args for dlopen mode - symbol::read_dwarf -> symbol::read_dwarf_entries - symbol::read_dwarf_breakpoints * library updates + categories impl - implement config::set_signal_handler - categories.cpp for handling trace delays - implement trace delay/duration/periods * concepts + debug + defines - tuple_element in concepts - removed runtime header from debug header - OMNITRACE_DEFAULT_COPY_MOVE * gpu + rocm_smi - moved rsmi_num_monitor_devices call to gpu.cpp - gpu::rsmi_device_count() * roctracer updates - roctracer_bundle_t -> roctracer_hip_bundle_t - use category_region instead of explicit tracing push/pop calls * sampling + backtrace_metrics - rework backtrace_metrics to support categories * tracing updates - category stack counters (i.e. push vs. pop counter) for profiling and tracing - push_timemory and pop_timemory accept string_view instead of const char* - tweaked the pop_timemory hash search - {push,pop}_perfetto theoretically supports same invocations as for {push,pop}_perfetto_ts and {push,pop}_perfetto_track - mark_perfetto, mark_perfetto_ts, mark_perfetto_track * category_region update - expanded the critical trace categories - use category_push_disabled - use category_pop_disabled - use category_mark_disabled * constraint implementation - This provides generic functionality for constraining data collection within a windows of time. - E.g., delay, delay + duration, (delay + duration) * nrepeat * COLORIZED_LOG -> MONOCHROME * constraint + omnitrace-causal + omnitrace-sample updates - support for using different clock IDs for constraints - OMNITRACE_TRACE_PERIOD_CLOCK_ID option - tweak to trace-time-window example - tweak to trace-time-window tests * Fix formatting * Update time-window tests - Fix detection of validation support for perfetto - Using the --caller-include feature + runtime instrumentation on Ubuntu 18.04 and OpenSUSE 15.2 results in a segfault in the internals of Dyninst. - For now, mark that these tests will fail - Later, determine if updating Dyninst submodule fixes this problem * Fix OMNITRACE_OUTPUT_PATH for all tests - Provide absolute path instead of relative * Tweak lambda for checking whether HW counters are enabled - causing strange build errors on older GCC compilers * Update dyninst submodule - fix issues with using --caller-include for Ubuntu 18.04, OpenSUSE 15.x * cmake formatting * fix sampling compiler issue for GCC 8 * Tweak thread create message * Increase causal validation iterations |
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Jonathan R. Madsen
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2ebfe3fc30 |
Perfetto updates (#211)
* Retry support in build-docker-release.sh * critical-trace perfetto update - use ::perfetto::Track instead of threads to create rows - refactor call_chain::generate_perfetto * Fix backtrace_metrics for perfetto - get_papi_labels is now properly populated * Refactor sampling::post_process_perfetto - include HW counter delta in sample debug annotations - reduce the amount debug annotation data stored in the call-stack - if the data is common to the entire stack, it is only annotated in the first and the last call-stack entry * exit_gotcha::exit_info * Improve OMPT shutdown - cause spurious test failures * Update source/lib/omnitrace/library/ompt.cpp |
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Jonathan R. Madsen
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808ea7dfa7 |
Rework sampling and colorized logs (#140)
## Overview
This is a significant PR which has 3 very notable characteristics:
1. Omnitrace colorizes most of it's logging
2. Completely reworked the sampling
- Samples now record the current instruction pointers instead of strings
- This _dramatically_ decreases the overhead of taking a sample
- The collection of metrics during a sample are split out into another component, enabling that data collection to be disabled -- which decreases the sampling overhead even further
- When both `OMNITRACE_SAMPLING_CPUTIME` and `OMNITRACE_SAMPLING_REALTIME` are ON:
- `OMNITRACE_SAMPLING_CPUTIME_FREQ` and `OMNITRACE_SAMPLING_REALTIME_FREQ` can be used to individually control the sampling frequency
- `OMNITRACE_SAMPLING_CPUTIME_DELAY` and `OMNITRACE_SAMPLING_REALTIME_DELAY` can be used to individually control the delay time before starting
- Now, omnitrace does not start a real-time sampler on the main thread unless `OMNITRACE_SAMPLING_REALTIME` is ON
- In the future, an `OMNITRACE_SAMPLING_TIDS` (and real-time, cpu-time variants) configuration variable(s) will allow you to select which threads will be sampled
3. Files produced by `omnitrace` exe -- `available-instr.txt`, `instrumented-instr.txt`, etc. -- now no longer has `-instr` suffix and are placed in `instrumentation/` subfolder, i.e. `available-instr.txt` -> instrumentation/available.txt`
- This helped de-clutter the output folder
Most of the other edits were reorganization (e.g. internal namespace changes), cleanup, and splitting up functionality.
## Bug Fixes
There is a bug fix with respect to the HSA callbacks which disabled sampling on child threads when an HSA API call was made
## Details
- created thread_info struct for mapping different thread IDs
- reorganized file structure significantly
- added categories.hpp, concepts.hpp
- moved around name trait definitions
- moved all omnitrace components into `omnitrace::component` namespace
- there was a lot of inconsistency b/t using `tim::component` in some places and `omnitrace::component`
- added macros like OMNITRACE_DECLARE_COMPONENT in lieu of TIMEMORY_DECLARE_COMPONENT
- OMNITRACE_CRITICAL_TRACE_NUM_THREADS -> OMNITRACE_THREAD_POOL_SIZE
- roctracer and critical_trace use same thread pool
- critical_trace functions do not lock anymore bc of thread-local TaskGroup
- added `component::local_category_region` to support using `component::category_region` without explicitly passing in name
- removed `component::omnitrace` (unused)
- migrated KokkosP and OMPT to use `component::local_category_region`
- removed `component::user_region` as a result
- migrated omnitrace_{push,pop}_{trace,region}_hidden to use component::category_region
- removed `component::functors` as a result
- migrated some ppdefs
- `api::omnitrace` -> `project::omnitrace`
- `api::(...)` -> `category::(...)`
- improved recording the execution time of threads
- migrated this functionality out of pthread_create_gotcha and into thread_info
- moved mpi_gotcha, fork_gotcha, exit_gotcha, rcclp into omnitrace::component namespace
- split backtrace up into backtrace, backtrace_metrics, backtrace_timestamp components
- sampling.cpp handles setup and post-processing that was formerly in backtrace
- updated logging to use colors
- `OMNITRACE_COLORIZED_LOG` config variable
- updated docs on JSON output from timemory
- instrumentation info in instrumentation subfolder
- added testing for KokkosP entries
- added testing for ompt entries
- add_critical_trace function defined in critical_trace.hpp
- disable push_thread_state and pop_thread_state when thread state is Disabled or Completed
- add comp::page_rss to main bundle
- thread_data supports std::optional instead of std::unique_ptr
- thread_data supports tim::identity<T> to avoid unique_ptr or optional
- tracing::record_thread_start_time()
- tracing::push_timemory and tracing::pop_timemory are templated on CategoryT
- removed anonymous namespace from omnitrace::utility
- sampling backtrace stores instruction pointers instead of strings
- component::category_region updates
- handle disabled thread state
- handle finalized state
- fewer debug messages
- invoke thread_init()
- invoke thread_init_sampling()
- handle push/pop count based on category
- push/pop count only modified when used
- component::cpu_freq
- components/ensure_storage.hpp
- reworked the pthread_create replacement function
- updated parallel-overhead example to report # of times locked
- OMNITRACE_MAX_UNWIND_DEPTH build option
- update timemory submodule
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